Re-thinking public health: Towards a new scientific logic of routine animal health care in European industrial farming

This study makes the case for a new scientific logic of routine animal health care in industrial farming in Europe. We argue that the social regime underpinning scientific research and development on chronic animal disease management (CADM) in Europe stifles innovation and sustains a productivist model of animal husbandry that facilitates and maintains chronic animal diseases rather than eliminating them. Drawing on documentary analysis and qualitative interviews, the study explores the science of CADM in the broiler, cattle and pig sectors of the European food industry. Our findings show that in these major sectors, research and development on CADM is largely orientated towards a logic of growth, profitability and control rather than a recognition of the interconnection between chronic animal diseases, the food industry, and people (especially consumers) as advocated by the One Health approach. The study contributes to the literature on medical humanities and science and technology studies within One Health and public health in two ways: First, we draw new focus towards chronic animal diseases that are non-transmissible to humans and argue that while these are not zoonoses, they are equally worthy of attention for managing the emergence of new pathogens and diseases. Second, we expand the conceptualisation of One Health to include chronic animal health conditions. Our argument is that public health as an outcome of the One Health approach should be a term of reference that applies to humans and nonhumans alike whether they be farmed animals, practitioners or consumers.


Introduction
T he governance of public health and infectious disease risk is currently under intense scrutiny. Urbanisation, industrialisation and globalisation have considerably increased the risk and scale of public health crises associated with antimicrobial resistance ('AMR') and pandemic disease outbreaks (LePan, 2020). In the past two decades, in particular, the frequency of public health crises associated with emerging and reemerging infectious diseases have been higher than ever before (Lashley, 2006) following the emergence and spread of the West Nile virus in the 2000s (Gubler, 2007), SARS (Cherry and Krogstad, 2004), bird flu (Conly and Johnston, 2004), swine flu (Farley, 2010), MERS (Al Hajjar et al., 2013), Ebola (Kaner and Schaack, 2016), Zika (Troncoso, 2016), and now COVID-19 which, as of 28 June 2021, has infected 180,817,269 people and killed 3,923,238 (WHO, 2020). While it is not possible to demonstrate a clear 'natural' origin of COVID-19 (Wade, 2021), pandemics, in general, often emerge from cross-contamination of pathogens between human and nonhuman animal species (Andersen et al., 2020;Pike et al., 2010;Roger et al., 2021). This situation is relevant to our focus on farmed animal health in this paper because agriculture is a place where the risk of emergence and transmission of pathogens between human and nonhuman animals is ever-present.
Often pressed against wildlife habitats (Spinney, 2020;Standaert, 2020), farmed animals are ideal intermediate hosts for the recombination, reassortment and transmission of pathogens to humans (Wallace, 2009). In large-scale industrial systems of animal production; that is, systems that prioritise high animal density, low genetic diversity, short production cycles, productivity and continuous movements of animals between farm businesses, opportunities for human and animal pathogens to infect, mutate, recombine, and spread internationally (Wallace, 2009) increase. This has already been demonstrated by the two flu pandemics of 2004 and 2009 (Wallace, 2009;Wallace and Wallace, 2015). Despite recent research on the links between public health and industrial farming Bellet, 2018;Kirchhelle, 2018) and between industrial farming and chronic animal diseases (Woods, 2014;Bonnaud and Fortané, 2020;Fortané, 2020), the link between public health and chronic animal diseases-and more specifically between public health and the science of chronic animal disease management ('CADM') in industrial farming-is under-explored in contemporary research. This article seeks to address this gap by exploring the value of 'One Health' as a means to see public health across species borderlines and facilitate a 'rounded vision' (Pickersgill et al., 2018(Pickersgill et al., , p. 1462) of health and wellbeing as a multi-agent issue.
In this article, we demonstrate that the social regime underpinning scientific research and development on CADM in Europe encourages a logic of routine animal health care in industrial farming which intersects the risk of disease emergence and pandemics by influencing the ways in which researchers (in this case, animal health scientists or 'AHS') explore, understand, and guide CADM in industrial farming. What AHS choose to focus on, include or exclude from their research, analyses and discourses on chronic animal health conditions embodies a 'social decision' (Wallace andWallace, 2015, p. 2077) and 'sociocultural meanings' (Lupton, 2000, p. 52) that have significant implications for the ways chronic animal diseases are comprehended and managed in industrial settings (Cassidy, 2017;Enticott and Ward, 2020). Adding new animal-oriented insights to extant research in the sociology of medical knowledge (Foucault, 1975(Foucault, , 1989Fairclough, 1992;Lupton, 1994Lupton, , 2000Mol, 2008), we draw upon Latimer's (2019) concept of 'science under siege' to examine the underlying norms and values governing the production of scientific knowledge on CADM and explore 'conditions of possibility (p. 264) for a new scientific logic of routine animal health care that reorients industrial practices toward 'more-than-human solidarity' in public health (Rock and Degeling, 2015).
By exposing practices that 'silently incorporate' an ideal of CADM, animal health care and taking 'good care' (Mol, 2008) of farmed animal health conditions, we present findings that are fundamental to prevent the emergence and re-emergence of new diseases (Hinchliffe et al., 2013;Allen et al., 2017) and future pandemics (Tomley and Shirley, 2009;Wallace, 2009). The article begins, therefore, by situating the importance of the science of CADM in accounts of public health and One Health literatures. We then examine our methodology before turning to our empirical results. Finally, we draw out the implications of our findings for a new, more-than-human order in public health and scientific knowledge in industrial farming.
Animal health, public health and the food industry Farmed animal health has historically been the motive upon which AHS have built their identity and defended their social status as public health experts in Europe (Bonnaud and Fortané, 2020). With the help of public authorities, scientific knowledge on highly contagious and zoonotic farmed animal diseases, such as trichinosis, swine fever, and tuberculosis (Berdah, 2010;Barroux, 2011;Woods, 2013;Mitsuda, 2017) has been the backbone of European food policies for safeguarding food standards and hygiene, global economies and human health since the late 19th century. At the same time, the production of scientific knowledge on chronic and non-zoonotic farmed animal diseases, such as cattle lameness and broiler enteritis, has been relegated to the private sector as part of day-to-day farm business management (Lowe, 2009;Woods, 2013).
Chronic animal diseases are persistent animal diseases affecting animal health and wellbeing, which are ostensibly harmless to human health but which have lasting effects on farmed animals' productivity and profit' (Woods, 2019, p. 2). They are intrinsically linked to intensive modes of animal husbandry (Nir, 2003) whereby farmed animals are mainly kept indoors at high stocking densities and represent, according to Wallace (2016), an important source of farming pathogens with 'pandemic potential' (p. 81). Chronic animal diseases are characterised by 'complex aetiologies, low mortality, [and] mild clinical signs' (Woods, 2019, p. 6). They are often silent too, which makes scientific research and 'the discourse of science' (Lupton, 2000) a founding element of their day-to-day management (Enticott and Ward, 2020;Woods, 2019).
In recent years, the crisis of antimicrobial resistance (AMR) has prompted public authorities to reinstate routine treatment for chronic animal health conditions in farming as a central part of the 'One Health' approach (Bonnaud and Fortané, 2016;Cassidy, 2017); the idea of caring for an animal, human and environmental health as one to prevent future health crises and social harms (Cassidy, 2017). However, as Cassidy (2017) points out, 'knowledge about and concern for animals in their own right does not appear to be a major topic of interest in One Health ' (p. 197): chronic animal diseases and their treatment remain a source of human infection or food scarcity but by no means a direct concern of One Health like their human counterparts. In our view, this would require One Health to consider the origins of chronic animal health issues and address the systemic and, most often, human forms of animal ill-being in industrial farming at the origin of crises such as AMR, such as 'the rise of consumerism' (Lowe et al., 2008).
Public health critics (Rock et al., 2014;Friese and Nuyts, 2017;Andrews and Duff, 2019) have stated that the human-centered vision of health, diseases, and health care in One Health is deeply problematic because it advocates for a 'logic of care' (Mol et al., 2010) that reinforces 'the very anthropocentrism that it seeks to change' (Cassidy, 2017, p. 197) and prevents humans from understanding and transforming a relationship with animals that could improve the health of humans and animals together (Rock et al., 2014;Friese and Nuyts, 2017), including mitigating the risk of current and future pandemics . 'Another science' (Stengers, 2018) of One Health that is 'meaningful and sustainable' for limiting future harms and diseases emerging from animal husbandry is, we argue, desirable for public health but demands innovation (Rock et al., 2014, p. 337), especially in the science of CADM and routine animal health care in industrial farming. Mol et al. (2010) summarise this as an effort 'to contribute to the vitality of the logic of care' (p. 7) in animal husbandry.
Chronic animal diseases are 'sentinels' (LeBoeuf, 2011;Rock et al., 2014) of systems of animal 'subordination and domination' (Wadiwel, 2015, p. 9), and their management an opportunity to prevent public health risks by reviewing the forms of human-animal living-together, especially in the context of food production, consumption and animal husbandry. Our work is part of a growing recognition of the importance of human-animal relations in the construction of One Health and public health (Rock et al., 2014;Friese and Nuyts, 2017;Brown and Nading, 2019;Kirk et al., 2018;Davies et al., 2020). It illuminates scientific aspects of routine animal health care in industrial farming which have been downgraded and relegated to the private domain of food production (Tomley and Shirley, 2009;Enticott et al., 2011) with 'a risk that they will be eroded' by being 'submitted to rules and regulations that are alien to them' (Mol et al., 2010, p. 7). In considering this argument, our purpose here is to critique the dominant and historically embedded scientific logic of CADM and routine animal health care in industrial farming.

Methodology
While great socio-cultural differences exist in farm veterinary services in Europe, Lowe et al. (2008) argue that the liberalisation of industrial animal production has made research and development in agriculture no longer so 'state-regulated and supported' but rather driven by 'international trade regimes' (p. 227). Our research explores the scientific logic of CADM and routine animal health care in industrial farming in Europe resulting from this 'process of [research] globalisation' (Lowe et al., 2008, p. 227). We used inductive, constructive grounded theory methods (Charmaz, 2009) to explore the discourse of science as it is expressed in relation to CADM in Europe.
Our research examined two extremely common chronic animal diseases, digestive and respiratory, which constitute a major reason for routine animal health care in industrial farming (Woods, 2019). We focus on three sectors of the European food industry: industrial chickens ('broilers'), cattle, and pigs. Largescale production of broilers, cattle, and pigs are common in Europe (Robinson et al., 2014) and chronic digestive and respiratory diseases have become a major issue not only for the European food industry (Rowan et al., 2004;Anonymous, 2015;Jones et al., 2019) but also for the general public in Europe because of their links with animal welfare (Husu-Kallio, 2008;Lawrence, 2016). Because our study was concerned by the social and political nature of research 'agendas' (Latimer, 2019) on CADM in industrial farming, our analysis was predominantly qualitative and rested upon two stages of data collection.
Drawing on previous work exploring scientific representation in research practices and 'iconography in scientific text' (Bastide, 1990; see also, Lupton, 2000;Cassidy, 2017;Friese and Nuyts, 2017), we first conducted a bibliometric search to explore how CADM is imagined and represented by animal health scientists in industrial farming. As previous work has shown, the language of science in publications is both 'powerful' (Lupton, 2000, p. 52) and a 'technique of visualisation' (Bastide, 1990, p. 189) of broader systems of knowledge production-meaning that surveying scientific publications provides a way to uncover or deconstruct (Lupton, 2000, p. 52) the sociocultural values and understandings that underpin research and knowledge production. In other words, a bibliometric approach can help focus collective attention on what should matter in the field concerned (in this case, CADM in industrial farming), as well as identifying gaps and absences in the literature. As Bastide (1990) argues, scientific publications can 'make one see what is invisible' (p. 189, emphasis original) (for example, the immunological trace of infection) and therefore neutralise the way in which complex and mostly invisible phenomena such as chronic digestive and respiratory diseases (Nir, 2003;Woods, 2019) may be understood by the wider community of scientists, farmers, veterinary surgeons, policy-makers, and other practitioners. In sum, examining a broad cross-section of literature in this field aimed to identify the way that AHS study and understand chronic animal diseases in the large-scale broiler, cattle, and pig production in Europe. The question was how AHS perceive these diseases, prioritise them within research projects, render them 'visible' (Bastide, 1990), and how they relate to industrial stakeholders, specifically the food industry. We question what management policies their research supports and what this tells us about the relative priority given to CADM and routine animal health care in industrial farming in Europe.
We used a search string and two bibliographic databases (Web of Science and Scopus) to identify literature used for farmed animal health 'decision-making and planning' in Europe (see Rushton et al., 2018). The search focused on the most common agents of the selected diseases in Europe (Christianson and Joo, 1994;Nicholas and Ayling, 2003;Villareal et al., 2010;Peek et al., 2017;Jones et al., 2019) and fifteen leading European producers of industrial broiler, cattle, and pig production (Eurostat, 2020a(Eurostat, , 2020b(Eurostat, , 2020c where chronic animal health conditions are the most concerning (Brockmeier et al., 2002;Yegani and Korver, 2008). The search also included common scientific names of diseases, such as 'coccidiosis' and 'necrotic enteritis' for chronic digestive diseases in broilers. All publications written in English, French, German, Italian and Spanish were included in the analysis. Duplicates (N = 5275) were removed, the remaining references (N = 4241) were checked for relevance based on publication access, language, geographical area, disease, population, and information for decision-making and planning, as provided in titles and abstracts (see Table 3, Supplementary Material for a summary of the inclusion and exclusion criteria used to select the scientific publications). We read the full texts of the selected references (N = 290). Additional publications (N = 10) were also identified through reference tracking. A total of 118 scientific publications were included in the analysis (see Supplementary Material for the list of the scientific publications included in the analysis).
In the second step, we conducted in-depth interviews with animal health scientists ('AHS') and other practitioners to deepen our understanding of the scientific representation of and research practices on CADM in industrial farming in Europe. Interviews explored the logics and 'institutional and organisational circumstances' (Fairclough, 1992, p. 4) of the production of scientific knowledge for CADM in Europe. Interviews were conducted with 18 farm animal health practitioners engaged in research for CADM or farm animal health decision-making. Participants were recruited within a larger European project (SAPHIR, 2020) looking at CADM. They included 11 AHS (8 from the public sector and 3 from the private sector), 4 veterinary surgeons ('VS'), and 3 policy-makers ('PM'). The majority of the practitioners were based in France, but all were working in the field of CADM research and development with other European countries, in particular Belgium, Germany, Italy, Poland, Spain, Sweden, The Netherlands and the UK. Practitioners worked either in the broiler (N = 9) or the cattle (N = 9) sector but 8 also had experience in the pig sector. Half of the practitioners were women (though the relevance of gender was not evident in our findings). Ethical approval for this research was granted by the University of Liverpool, former Institute of Infection and Global Health Research Ethics Committee in November 2018. All practitioners were informed about the research and given assurances about anonymity following the Committee on Publication Ethics (COPE) guidance. The interviews were audio-recorded and transcribed verbatim. Most interviews took 90 min but some were significantly longer (150 min). The interview questions started with broad questions related to industrial farming, CADM, routine animal health care in industrial farming to then focus on the science of the selected diseases; their origins, social values, studies, and routine management.
Interviews were analysed qualitatively using a descriptive, reflexive, and iterative approach to coding (Charmaz, 2009). Scientific publications were analysed in parallel with descriptive and interpretative approaches so that we could locate emerging themes from the interviews within larger AHS discourses and practices identified in the selected publications (Charmaz, 2009). The authors discussed and agreed the coding of the dataset, contextualising it with their own knowledges and experiences of farmed animal health science, either as trained veterinary surgeons, policy-makers or scientists. The thematic analysis (Braun and Clark, 2006) allowed us to identify commonalities and differences across transcripts and publications and, as the analysis progressed, more detailed codes emerged. From this detailed coding, theme analysis work, and comparison of written and oral materials we were able to strengthen our understanding of the science of CADM and hypothesise about the scientific logic of routine animal health care in industrial farming; a theme we turn to in the following section.

Chronic animal diseases and the industrial logic of capital
This section identifies the construction of a scientific logic of routine animal health care in industrial farming and sets out the three core components of our findings drawn from the joint analysis of the literature review and the interviews. First, we present the scientific research on CADM in industrial farming, its underlying scientific assumptions and shared definitions (Berger and Luckmann, 1966). Second, we illuminate how scientific discourse and practice emerge from particular forms of research, generated through scientific traditions, 'social interaction and socialisation' (Lupton, 2000, p. 51). Finally, we disentangle the hegemonic powers and tensions emerging from different visions of CADM among farmed animal health practitioners in Europe. Taken together, these components support Stengers's (2018) argument that the science of CADM in industrial farming is shaped-and dominated by-an industrial logic of 'fast sciences' (Stengers, 2018) for capitalist production and market operations, despite growing concern for public health inherent in farmed animal health and infectious diseases.
The currency of chronic animal diseases and their scientific management. The number of scientific publications related to chronic digestive and respiratory disease management in the large-scale industrial broiler, cattle, and pig production has increased since the 1980s (Fig. 1)-a period from which the adverse effects of industrial practices on farmed animal health and welfare begin to be visible in Europe and provoke ethical and scientific questions about the multiple drawbacks of the capitalist model of large-scale industrial animal production (Harrison, 1964;Flatrès and Flatrès, 1997;McCausland, 2014)-that is, a model 'organised primarily through the operation of markets' (Schrecker and Bambra, 2015, p. 8) and the 'rise of consumerism' (Lowe et al., 2008, p. 227).
Although interviewees agreed that chronic animal diseases are linked to industrial farming and intensive forms of animal husbandry, they explained, however, that this neither made them nor their management a subject of public health interest. Indeed, for our interviewees, the science of CADM remained informed and shaped by international market regimes rather than by public health innovations and policies-that is, 'business rumours', 'competition between industries' and 'political and industrial lobbying' [quotes from public sector AHS 6 and private sector AHS 9 and 11]. In publications, too, the science of CADM is not about improving animal welfare and reorienting practices of industrial farming. Rather, it is about preventing significant financial and economic pitfalls for the food industry (see for example, Williams, 1999;Nieuwenhuis et al., 2012;Györke et al., 2016). In fact, only 7 authors in our bibliometric sample (6%) used the term 'welfare' to present their research and explain its value to the reader. Note also that in these publications, the term 'welfare' often comes after that of 'economic', ultimately subordinating it to food markets and 'international trading regimes' (Lowe et al., 2008, p. 227). As an example, Ter Veen et al.
(2017) explain in the first sentence of their abstract and introduction: 'Intestinal disease has a major impact on the broiler industry due to economic and welfare reasons' (see Supplementary Material for the list of the scientific publications included in the analysis). As one public sector AHS [8, woman] clarified in interviews, animal welfare is just a 'plus' and the science of CADM primarily an investment, an 'economic practice' for industrial profit and sale: 'It is not to improve the health of farmed animals per se, but for industrial economic purposes […] Diseases like coccidiosis have a direct impact on weight gain and feed conversion ratio. Then, […] if [the industry] can show that they have animals in good health, and therefore, in good welfare, that's good.' Broilers, in particular, have historically been the most intensively researched investment commodities of the food industry. Boyd (2001) notes that, in the US context, this led the food industry to create in-house research frameworks for 'rapidly translating research into commercial gain' (p. 632). In our study, half as many publications were identified for broilers (N = 18) than cattle (N = 53) and pigs (N = 47), suggesting that European broiler research is likely to be influenced strongly by private interests too. In fact, this was confirmed by our interviewees, especially one public sector AHS [8, woman], who critiqued the too frequent fads of private science and therapeutic solutions for CADM in broilers: Not perceived as having a direct impact on public health, the science of CADM does not, according to interviewees, attract public attention like so-called mad cow disease or bird flu-two important zoonoses particularly represented in the public sector (Buller and Morris, 2003;Keck, 2008 This was also apparent in the relative importance of publications on CADM according to diseases: only diseases with possible repercussions on human health (for example, bovine respiratory diseases which are important sources of antibiotic use) or the global economy (for example, PRRS 1 ) could become a priority, attract public research funding and be more visible (Fig. 1). Hence, research on CADM, as practised and used by AHS, appears to support what Hamilton and Mitchell (2018) call a 'human form of rationality, and the mechanism of capital exchange' (p. 347)-both as an origin and a product of animal health extraction for science and the food industry, a currency exchange from animal health to humans; human health, yield and productivity.
Manufacturing the science of chronic animal disease management. Chronic animal diseases are 'old', 'have existed for a very long time' and have increased with farming industrialisation, 'intensification' and rising 'animal densities' [quotes from public sector AHS 3 and 5, private sector AHS 10, VS 4, and PM 3]. The reasons for their persistence are well known to all practitioners interviewed, regardless of their work as AHS, VS, and PM, and are entwined with neoliberal economics and politics of the food industry, 'which place markets at the centre of all economic and social life' (Schrecker and Bambra, 2015, p. 8). As one public sector AHS [1, woman] highlighted: 'We know that stressing and mixing animals provides excellent conditions for the explosion of respiratory diseases.' For a PM in France [1, man], however, one of the reasons for the persistence of chronic animal diseases in industrial farming was science itself. For this interviewee, chronic animal diseases would never be entirely solved for they support science by creating research opportunities that science and AHS rely upon:  Whether one regards the increasing importance of science-production interaction in industrial farming as an outcome of production intensification and animal ill-being or, conversely, as a function of an increasingly production-focused and more scientific approach to animal farming, in practical terms, CADM has become 'an element of support' (Foucault, 1984, p. 253) for the dual-benefit of chronic animal health science and the food industry.
The interweaving of the science of CADM and the food industry had also the effect of shaping research practices for CADM in industrial farming. A public sector AHS [8, woman], for example, asserted that the science of CADM in industrial farming is compartmentalised, technical and mechanical by nature rather than holistic and driver of agricultural change, because this is how the science of CADM is funded, knowledge on CADM produced and published, and therefore, prioritised by AHS: 'For the moment, everyone goes for its own interests and research separately… vaccination, genetics, nutrition…' Another [public sector AHS, 5, man] also explained how providing technical and simplified solutions, fast, standardised, and visible actions-targeted towards quick agricultural impact, production, and profit-is particularly attractive and appreciated by funders of research and the food industry: 'Eimeria tenella is a more promising [pathogen] for institutions that support researchers. [AHS] say: "I work on [parasites] we can see, so [funders] know they are the issue". They are also the easiest species to work […] because they […] make blood, they are easy to isolate and to purify.' In all publications, diseases and pathogens were transformed and made visible through mechanistic, standardised and often unidisciplinary processes (such as Bayesian models, multilevel statistical models and molecular genetics). These highly technical approaches and tools turn invisible diseases into tangible quantities. They describe biological processes, reveal 'responsible pathogens' (a term frequently used in publications) and advocate for particular and lucrative industrial options such as drugs and vaccines (as in 81% of the publications). Tangible, rapid and lucrative 'cures' are not only a scientific goal but an aspiration, not only for the technological (and economic) development of the food and pharmaceutical industry but also for AHS and their research institutions: 'I had a dream, to find an analysis where one can sample a piece of meat and tell you there was good animal welfare […] that, would be an economic success.' [public sector AHS 6, man] Through their scientific choices and practice, AHS translate complex and invisible pathological processes into simple, tangible, lucrative and desirable ones. As Lupton (2000) argues, science 'interact[s] in producing and reproducing the discourses and practices and, thus, the meanings and experiences of health, illness and medical care' (p. 53). Rather than disrupt the structures and dynamics of industrial animal production and, ultimately, their interactions with the food and pharmaceutical industry, AHS promote a science of CADM supported by technological advances and industrial development. AHS sometimes critiqued excessive production demands, but often attributed it to a need to balance discourses of human and farmed animal needs. They also appeared to struggle within their own community under increased pressure from a more generalised scientific logic of 'industrialisation and managerialization' within the life sciences (Latimer, 2019, p. 264).
Between scientific ideals and the practice of routine animal health care in industrial farming. Constrained by research funding, peer-review, scientific silos and research methodologies, the science of CADM does not, according to many farmed animal health practitioners, have sufficient means to explore the broader determinants 'constituting', in Hinchliffe's words (2015), animal ill-and well-being in industrial farming. As one public sector AHS [6, man] explained, the silent nature of chronic animal diseases and the scientific technical apparatus further support a very industrial and profit-oriented rationale for the production of scientific knowledge on CADM: 'Seeing an animal that has subclinical problems, you're not going to see it from the outside. Growth problems will be seen through animals' productivity, not through their appearance.' In a professional sense, AHS, VS, and PM all felt 'ethically responsible for the prevention and the reduction of diseases that make animals suffer' [public sector AHS,8]. However, they explained their difficulty in resisting and responding to competing structures and expectations of what it means to scientifically care for CADM. The call for a ban on the use of antibiotics in industrial farming encouraged by AHS, public health authorities and wary consumers, for example, represented for many VS professional irresponsibility, the mistreatment of farmed animals. As this French VS [1, man] explained: 'Animal disease, nobody cares. If a cow dies, [public health authorities] don't care. We are not allowed to use this or that product […] if this means that the animal dies, that's ok because it is planned in the regulation.' Participants often attributed these 'tensions' (Law, 2010) between scientific advice, farmed animal health policies and veterinary practice to a nascent but increasing social divide between different backgrounds and expertise, practices and ethical values, often intersecting different human-animal and human-environmental relations. As two interviewees suggested: 'If there is one community detached from the field, where egos are oversized, it is that of AHS. I have known them closely. AHS should be at the service of people, purposes, things, but not themselves.' [PM 3,man] 'PM no longer have any notion of pathologies […] They give authorisations for the construction of animal barns which are cathedrals, completely incompatible with good air circulation, good management, and animal well-being' [French VS 1,man] Whatever their disagreements, however, all practitioners agreed on the need to revise the scientific purposes of CADM in industrial farming; to move beyond a scientific logic of routine animal health care for grant money, professional security, and industrial output. Interviewees comprehend the need to 'work holistically' and to promote a new 'sociality', in Latimer's term (2013), between humans and farmed animals that could help build a new scientific logic of routine animal health care in industrial farming-one that could benefit both the animal and animal husbandry. They explained how there was a need to reorientate research on CADM, to find new trajectories to make farmed animal health 'matter' (Moser, 2008), but recognised internal and external vectors at play which prevented them from voicing these convictions and acting upon them: 'You need courage to [speak out] […] this has always been the case with people who know. You are afraid of people who know […] if you denounce them, you are judged, you ARTICLE HUMANITIES AND SOCIAL SCIENCES COMMUNICATIONS | https://doi.org/10.1057/s41599-021-00890-y are burnt alive because it is a corporation. VS, AHS, medical doctors are corporatists, and someone who will say: "you are too corporatist" will be excluded from the community, it will be finished, no more career, nothing […] Why isn't anybody doing it? Because it's very comfortable. The corporatism of animal science exists and it works hand in hand with the pharmaceutical industry.' PM [3, man] 'We do not value intellectual input, so it's always the sale of [a drug or a vaccine] that will pay for our [scientific] activities' [French VS 2,man] As these two comments illustrate, the science of CADM is tied to, and under the control of, professional and social structures and orders. The socialisation of the science of CADM as an economic and industrial practice not only structures the way in which scientific knowledge is produced, but also how animal health practitioners (be they AHS, VS, or PM) are educated, have to practice and work for hand in hand with the pharmaceutical and the food industry. This matter was stressed by our interviewees: 'When I started [at the veterinary school], I was offered a stethoscope and my year was named after a big pharmaceutical company.' [French PM,3] 'Some veterinary schools do services for pharmaceutical companies to test things […] We actually do these services and if we are asked not to publish the results because they are not up to the expectation of our industrial partner we will not have the right to publish.' [public sector AHS, 1] 'VS have remained until recently too focused on prescribing […] I am not sure they were able to seize the opportunity of the demedicalisation of animal farming and explore that of animal welfare, because they mainly saw their loss of profits related to antibiotics.' [private sector AHS,10] Exploring the science of CADM in industrial farming enables us to re-think the scientific logic of routine animal health care in industrial farming not solely as a technical and economic process of capital-output but as a practice of care in which powerrelations are produced and affirmed between species, communities of practitioners, and the food and pharmaceutical industry. Our findings show that the science of CADM in industrial farming is subject to capitalist and human-centered motivations that feed consumerism and contribute to the intensification of animal husbandry at the risk of 'precipitating cycles of economy and disease' (Wallace et al., 2015, p. 69). The scientific logic of routine animal health care in industrial farming is also inconsistent with a more-than-human 'solidarity as ethical practice in public health research' (Rock and Degeling, 2015, p. 63) and sine qua non of One Health (Friese and Nuyts, 2017). This finding has significant ramifications for the way that farmed animal health science is organised, perceived and might evolve to reorientate research practices towards ethical responsibilities and we turn to this in greater detail in the following discussion.

Discussion
Because the science of CADM is locked into specific social and institutional spaces, routine animal health care in industrial farming may be diverted, in Foucault's terms (Foucault, 1984), from the 'good intentions' (p. 245) of liberating animals from illbeing and caring for their health and well-being. This, we argue, has the negative effects of supporting-rather than eliminating-the emergence and re-emergence of animal diseases and pathogens in industrial farming.
AHS must, for their own professional survival, show the economic value of their research to their investors and 'clients', primarily the pharmaceutical and food industries where chronic animal diseases appear not to be an urgent public health priority. Woods (2014) rightly argues that 'productivist agricultural agendas' and the 'practicalities of scientific investigation moulded the conduct of [farmed animal health] research and its effects on production' (p. 294). Supporting that argument, our research highlights that the public invisibility of research on CADM contributes to a situation in which routine animal health care and veterinary services in industrial farming function as technical support for agriculture, but stifling potential innovations that could lead to the resolution of chronic animal health conditions. Food and pharmaceutical companies, through their industrial strategies, models and everyday practices, are precipitating and reproducing these conditions by seeking a narrow view of 'useful' knowledge and technical skills.
This problematic situation has (inadvertently) facilitated many public health crises such as AMR and bird flu (Wallace, 2009;Kirchhelle, 2018) which Schrecker and Bambra (2015) could rightly link to social construction of scientific practice in which 'neoliberal epidemics' flourish. Many scientists are at pains to resist the 'discomfort' that arises from such a charge but remain tethered, nonetheless, to historic links to the food industry and its commercial impulses. Rather than making chronic animal disease a burning public health issue, the science of CADM has become a linchpin tool within meat and dairy markets, the cornerstone of private (and mostly deregulated) biosecurity and disease control (see for example, Lowe, 2009;Hinchliffe et al., 2013), overseers of supply routes which are central to farm strategy and commercial planning. As such, the science of CADM works within and helps shape, a neoliberal and economic-rational code of industrial practice in animal husbandry (Enticott et al., 2011) that articulates the goals of pharmaceutical producers, governments, venture capitalists, supermarkets and other powerful actors. While, as Lowe (2009) has pointed out, there are contradictions, paradoxes and complications in the relationship between science, veterinary practice and commercial providers of various types, and it would be a mistake to reduce this to a model of cynical capital exchange, our research highlights that there is-nonetheless-a close linkage between consumerism, commercial rationality, and routine animal health care in industrial farming which has produced a formal order of research and systematic scientific logic of CADM comparable to the organisation of work in industrial systems of agricultural production (Ikerd, 2011;Godley, 2014).
Such productivist agendas, historically embedded in a professional 'military discipline' (Foucault, 1984), means that the science of CADM has been socially engineered as a series of actions on parts rather than the 'full body'. It has focused on machines and biological processes rather than social relations and entire living beings. As the founder of the first veterinary school once stated (Bourgelat, 1762;Bourgelat, 1777), the science of farmed animal health consists of scientific 'brigades' (Bourgelat, 1777) 'keep[ing] the parts of the machine in their integrity and […] repair[ing] its disorders and alterations' (Bourgelat, 1762). Our study shows how the science of CADM remains largely compartmentalised, specialised and simplified in different units of knowledge production such as immunology, genetics and nutrition. While compartmentalisation produces some efficiencies through specialisation, as Ikerd (2011) argues, this 'allows consolidation of control into large-scale, corporate business enterprises' (p. 2) and boxes the industrial rationale of the science of CADM and routine animal health care in industrial farming into a 'smaller epistemic corner' (Heintzman, 2018, p. 258) which fails to recognise all the health and well-being needs of farmed animals (Bennett et al., 2000;Porcher and Schmitt, 2012) and the capacity of diseased animals to harbour and spread pathogens. In its lack of attention to chronic animal disease, the science of CADM has inadvertently fostered the resilience and adaptation of a host of pathogens to large-scale industrial production. As veterinary literature shows (Anderson, 2008;Kasonta et al., 2012), the scientific logic of control (Hinchliffe et al., 2013) rather than care, can serve (paradoxically) as the source of public health problems and pandemics (Law, 2010;Blue and Rock, 2011;Rock and Degeling, 2015) as the recent crisis of antibiotic resistance has demonstrated (Bellet, 2018).
Today, the practice of farmed animal health management looks rather different from its historical antecedents. Many of those we interviewed were keen to distance themselves from the capitalist logic of CADM but also recognised the intractable nature of the relationships between commerce and science. The science of CADM, funded by and working in tandem with the food industry, has problematised its capacity to adapt to a new social contract of care orientated towards a less human-centered farmed animal health (Buller and Morris, 2003) despite a proliferation of increasingly vocal consumer perceptions about the source and ethics of food (Mol, 2009). We must not reduce this knotty social and economic problem to an animal health practitioner issue because academic enquiries in animal health and healthy forms of animal husbandry are intertwined (Porcher, 2014) with multiple stakeholders, each with their own agendas which are often contradictory in nature.
We, however, view the science of CADM as part of a broader realm of animal health, welfare, and care in industrial farming, which involves learning to attend more closely to (Porcher, 2014) farmed animal ill-and well-being; to make chronic diseases a priority despite their lack of public health standing. Our research has highlighted the difficulty of pursuing this agenda in a European context where the science of CADM remains 'socially cast' (Buller and Morris, 2003) as an endeavour for humans, their consumption and profit. Blockages to innovation and research also emerge from the lack of collaboration between different branches of science and even within their own community-some farmed animal health experts have more social capital than others depending on the 'utility' (Timotijevic et al., 2019, p. 2) of their practice for economic growth and profit-making policies. On this basis, we argue that the science of CADM could be depicted as being 'under siege' (Latimer, 2019;Wade, 2021) from the complex, and sometimes contradictory, pressures of economic growth which Stengers (2018) describes as a frenetic state. New scholarship (Cassidy, 2017;Gorman, 2019;Kirk et al., 2018;Davies et al., 2020) has begun to offer a valuable vision of the meaning of human-animal relationships, 'connections' (Latimer, 2013) and interspecies care in public health and One Health, although some of this work stems from the inclusion of animals in the search of human health. Like many of our interviewees, however, we believe that animal health is, in its own right, of intrinsic interest to public health and One Health knowledge. Understanding it holistically, within social as well as scientific context, carries the potential for significant benefits as we seek to dwell and thrive amidst different kinds' (Latimer, 2013).

Conclusions
To conclude, this study has provided new empirical perspectives on the social construction of routine animal health care in industrial farming and public health, the link between the health of farmed animals and our health and how this is vital for understanding our responses to public health crises such as AMR and pandemics. Our findings show that human interests dominate the science of routine animal health care and leave the door open to serious public health crises (Dingwall et al., 2012). Research and development on CADM have yet to capture the attention of public health policy-makers and some consumers (Verbeke and Viaene, 2000;Porcher and Schmitt, 2012). We have sought to explain this by drawing attention to the competitive and capitalist drivers of the food and pharmaceutical industries which take a strong role in setting agendas for academic enquiry. Scientists and veterinary practitioners may, at times, seek to appear resistant to this logic but our research demonstrates its continued potency as a blockage to change. This is problematic for those who have the social, scientific and technical capital to broker realistic and lasting legacies in animal husbandry for public health. The significant obstacles in the way science is funded, organised and put into practice continue to militate against change.
In the complex multiplicity of interests surrounding agriculture (Lowe, 2009), new strategies for developing the science of CADM could drive and shape a new culture of routine animal health care 'from within' (Hinchliffe et al., 2013) by demonstrating the importance of everyday farmed animal health and well-being for public health. As the recent pandemic has shown, the interaction between human and animal health is less distant than many have previously assumed. There is a need to value the health and chronic health conditions of animals as 'voices' (Despret, 2016;Hamilton and Taylor, 2017) in the order of public health knowledge to prioritise a less human-centered view of health, science and agricultural production and consumption. This is essential because if different interests are to be acknowledged (Rock et al., 2014), human 'experts' need to embrace and work with the interconnected, rather than competing, interests of human and animal lives. Given that it is our own species that speaks about and for animals in agriculture and science, the recognition of farmed animal daily health means taking account of a variety of animal spokespeople and increasing dialogue across the range of disciplinary boundaries. It is this paradigm shift that will prepare us for, and build resilience to, new disease outbreaks which threaten to disrupt the fabric of our societies.

Data availability
All data generated or analysed during this study are included in this published article.