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Effects on milk yield and composition of intra-abomasal infusions of sodium caseinate, an enzymic hydrolysate of casein or soya-protein isolate in dairy cows

Published online by Cambridge University Press:  01 June 2009

Jai-Jun Choung  and
David G. Chamberlain
Jai-Jun Choung
Affiliation:
Hannah Research Institute, Ayr, KA6 5HL, UK
David G. Chamberlain
Affiliation:
Hannah Research Institute, Ayr, KA6 5HL, UK
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Summary

Six lactating dairy cows receiving a diet of grass silage and barley were given the following treatments as infusions into the abomasum, in a replicated 3 × 3 Latin square with 10 d periods: sodium caseinate (C), an enzymic hydrolysate of casein (CH) and soya-protein isolate (SPI). The C and CH treatments supplied ~ 185 g/d and the SPI treatment ~ 160 g/d of amino acids. Milk yield was similar for all treatments. Yields of milk protsein were 605, 604 and 582 (P > 0·05) g/d for C, CH and SPI respectively. For C, CH and SPI respectively, concentrations (g/kg) of fat were 39·6, 45·7 and 41·9 and yields (g/d) of fat were 790, 931 and 827; values for CH were significantly (P < 0·01) higher than for either of the other treatments. It is concluded that the form in which amino acid residues of casein are supplied to the abomasum (protein v. peptide–amino acid mixtures) can influence the partition of use of nutrients between body tissues and the mammary gland.

Type
Original Articles
Information
Journal of Dairy Research , Volume 60 , Issue 2 , May 1993 , pp. 133 - 138
Copyright
Copyright © Proprietors of Journal of Dairy Research 1993

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References

REFERENCES

Adibi, S. A. & Kim, Y. S. 1981 Peptide absorption and hydrolysis. In Physiology of the Gastrointestinal Tract, vol. 2, pp. 1073–1095 (Ed. Johnson, L. R.). New York: Raven PressGoogle Scholar
Bassett, J. M. 1975 Dietary and gastro-intestinal control of hormones regulating carbohydrate metabolism in ruminants. In Digestion and Metabolism in the Ruminant (International Symposium on Ruminant Physiology 4, 1974), pp. 383–398 (Eds McDonald, I. W. and Warner, A. C. I.). Armidale, NSW, Australia: University of New England Publishing UnitGoogle Scholar
Beynen, A. C., West, C. E., Spaaij, C. J. K., Huisman, J., Van Leeuwen, P., Schutte, J. B. & Hackeng, W. H. L. 1990 Cholesterol metabolism, digestion rates and postprandial changes in serum of swine fed purified diets containing either casein or soybean protein. Journal of Nutrition 120 422–430CrossRefGoogle ScholarPubMed
Choung, J.-J. & Chamberlain, D. G. 1992 Protein nutrition of dairy cows receiving grass silage diets. Effects on silage intake and milk production of postruminal supplements of proteins and amino acids. Journal of the Science of Food and Agriculture 60 25–30CrossRefGoogle Scholar
Choung, J.-J. & Chamberlain, D. G. 1993 The effects of abomasal infusions of casein or soya-protein isolate on the milk production of cows in mid lactation. British Journal of Nutrition 69 103–115CrossRefGoogle ScholarPubMed
Davies, M. G. & Thomas, A. J. 1973 An investigation of hydrolytic techniques for the amino acid analysis of foodstuffs. Journal of the Science of Food and Agriculture 24 1525–1540CrossRefGoogle ScholarPubMed
MacLeod, N. A., Corrigall, W., Stirton, R. A. & Ørskov, E. R. 1982 Intragastrie infusion of nutrients in cattle. British Journal of Nutrition 47 547–552CrossRefGoogle ScholarPubMed
Payne, R. W., Lane, P. W., Ainsley, H. E., Bricknell, K. E., Digby, P. G. N., Harding, S. A., Leech, P. K., Simpson, H. R., Todd, A. P., Verrier, P. J. & White, R. P. 1987 Genstat 5 Reference Manual. Oxford: Clarendon PressGoogle Scholar
Rérat, A., Simoes, Nunes C., Mendy, F. & Roger, L. 1988 Amino acid absorption and production of pancreatic hormones in non-anaesthetized pigs after duodenal infusions of a milk enzymic hydrolysate or of free amino acids. British Journal of Nutrition 60 121–136CrossRefGoogle ScholarPubMed
Storry, J. E. 1970 Reviews of the progress of Dairy Science. Section A. Physiology. Ruminant metabolism in relation to the synthesis and secretion of milk fat. Journal of Dairy Research 37 139164CrossRefGoogle Scholar
Whitelaw, F. G., Milne, J. S., Øhskov, E. R. & Smith, J. S. 1986 The nitrogen and energy metabolism of lactating cows given abomasal infusions of casein. British Journal of Nutrition 55 537–556CrossRefGoogle ScholarPubMed