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Serum urea concentration to determine protein requirements of pig genotypes

Published online by Cambridge University Press:  20 November 2017

N.D. Cameron ,
E. McCullough ,
K. Troup  and
J.C. Penman
N.D. Cameron
Affiliation:
Roslin Institute, Roslin, EH25 9PS, Scotland
E. McCullough
Affiliation:
Roslin Institute, Roslin, EH25 9PS, Scotland
K. Troup
Affiliation:
Roslin Institute, Roslin, EH25 9PS, Scotland
J.C. Penman
Affiliation:
Roslin Institute, Roslin, EH25 9PS, Scotland
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Extract

An in vivo procedure to determine nutrient requirements for growing pigs would have substantial cost advantages over serial slaughter and furthermore repeated measurements would allow estimation of protein requirements at each stage of growth. Serum urea concentration (Urea) has been proposed as a candidate indicator of protein requirement as over-supply of protein will increase Urea (Chen et al., 1995). The study estimated genetic variation in Urea at different stages of performance test and the relationships between Urea and performance traits.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2002 , 2002 , pp. 20
Copyright
Copyright © The British Society of Animal Science 2002

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References

Cameron, N.D. 1994. Selection for components of efficient lean growth rate in pigs 1. Selection pressure applied and direct responses in a Large White herd. Animal Production 59: 251–262.Google Scholar
Chen, H.Y., Miller, P.S., Lewis, Wolverton, C.K. and Stroup, W.W. 1995. Changes in plasma urea concentration can be used to determine protein requirements of two populations of pigs with different protein accretion rates. Journal of Animal Science 73: 2631–2639.Google Scholar