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Serum urea concentration to determine protein requirements of pig genotypes

  • N.D. Cameron (a1), E. McCullough (a1), K. Troup (a1) and J.C. Penman (a1)

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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.

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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: 251262.
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: 26312639.

Serum urea concentration to determine protein requirements of pig genotypes

  • N.D. Cameron (a1), E. McCullough (a1), K. Troup (a1) and J.C. Penman (a1)

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