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Relationship between pH and Volatile Fatty Acid and Diversion of Saliva from the Actively Fermenting Rumen of Sheep

Abstract

THE importance of a copious flow of saliva in ruminant digestion, especially with regard to the bicarbonate-phosphate buffer system1,2 and the sodium economy of the sheep3 is well known. Recently the total mixed saliva section rate for previously starved sheep consuming various roughage rations has been measured by the use of œsophageal fistulæ and found to vary between 2 and 12 ml./min., with a mean value of 6.1 ml./min. (17 observations) (McManus, unpublished data).

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References

  1. 1

    McDougall, E. I., Biochem. J., 43, 99 (1948).

  2. 2

    Turner, A. W., and Hodgetts, V. E., Aust. J. Agr. Res., 6, 1, 115 (1955).

  3. 3

    Denton, D. A., and McDonald, Nature, 177, 1035 (1956); Quart. J. Exp. Physiol., 42, 72–95 (1957).

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