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Effect of intravenous histidine or histidine peptide infusion on milk protein yield in lactating goats with an induced histidine deficiency

Published online by Cambridge University Press:  05 November 2021

F.R.C. Backwell ,
B.J. Bequette ,
L.A. Crompton ,
C.K. Reynolds ,
D.E. Beever  and
J.C. MacRae
F.R.C. Backwell
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB, United Kingdom
B.J. Bequette
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB, United Kingdom
L.A. Crompton
Affiliation:
Department of Agriculture, Reading University, Reading RG6 2AT, United Kingdom
C.K. Reynolds
Affiliation:
Department of Agriculture, Reading University, Reading RG6 2AT, United Kingdom
D.E. Beever
Affiliation:
Department of Agriculture, Reading University, Reading RG6 2AT, United Kingdom
J.C. MacRae
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB, United Kingdom
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Extract

Studies involving infusion of stable isotope labelled peptides have shown that the mammary gland has the ability to utilise peptide-derived AA for milk protein synthesis (Backwell et al., 1994a) and that peptides may be involved in the supply of phenylalanine to the mammary gland in vivo (Backwell et al., 1994b). The aim of the present experiment was to compare milk production responses to systemic (jugular vein) provision of histidine as free AA or as a peptide (glycyl-histidine) in lactating dairy goats with an induced histidine deficiency.

Type
Sheep
Information
Proceedings of the British Society of Animal Science , Volume 1996 , March 1996 , pp. 180
Copyright
Copyright © The British Society of Animal Science 1996

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References

Backwell, F.R.C., Bequette, B.J., Wilson, D., Calder, A.G., Wray-Cahen, D., Metcalf, J.A., MacRae, J.C., Beever, D.E. and Lobley, G.E. 1994b. The utilisation of dipeptides by the caprine mammary gland for milk protein synthesis. American Journal of Physiology 267: R1–R6.Google Scholar
Backwell, F.R.C., Bequette, BJ., Metcalf, J.A., Wray-Cahen, D., France, J., Crompton, L.A., Beever, D.E., Lobley, G.E. and MacRae, J.C. 1994c. Peptide utilisation by the mammary gland of lactating dairy goats. Animal Production 58: 433A.Google Scholar