Table 2 Numbers of studies in different categories by level along the impact pathway

From: A scoping review of feed interventions and livelihoods of small-scale livestock keepers

Categories Items in category Total Adoption Productivity Livelihoods
Publication type Peer-reviewed journal article 51 42 10 12
  Book chapter 1 1 1 1
  Conference proceeding 8 6 3 2
  Report 6 6 4 3
  Working paper 7 3 1 4
Year of publication 2016–2019 15 10 3 7
  2011–2015 21 19 7 6
  2001–2010 28 24 6 8
  Before 2001 9 5 3 1
Agro-ecological zone Mixed systems 53 41 12 15
  Agro-pastoral systems 10 9 2 2
  Pastoral systems 3 1 2 1
  Multiple systems 1 1 1 1
  Other 2 2   1
  (Blank) 4 4 2 2
Regions Horn of Africa 12 11 2 3
  East Africa 23 19 5 6
  Central Africa 1 1   
  West Africa 7 5 2 1
  Southern Africa 5 5 2 1
  South Asia 6 4 1 2
  Southeast Asia 12 7 3 8
  East Asia 2 2 2 1
  Latin America 5 4 2  
Type of methods Quantitative 45 40 14 13
  Qualitative 9 5   2
  Quantitative/qualitative 19 13 5 7
Duration of the experiment >20 years 3 1 1 2
  11–20 years 4 4 1 1
  1–5 years 22 16 6 8
  6–10 years 8 6 3 5
  NA 36 31 8 6
Total   73 58 19 22