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Effects of protein source and formaldehyde treatment on the metabolism and performance of pregnant and lactating ewes fed straw

  • D. Handford (a1), S.E. Pattinson (a1), L.A. Sinclair (a1) and R.G. Wilkinson (a1)

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Fishmeal is a suitable protein source for pregnant and lactating ewes, providing higher levels of undegradable protein (UDP) than vegetable protein sources, with an improved biological value (Robinson, 1987). The lower amounts of UDP supplied by vegetable protein sources may however be improved by formaldehyde treatment. The objective of the current experiment was to compare the effects of feeding concentrates containing fishmeal with concentrates containing vegetable protein sources with or without formaldehyde treatment.

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Ørskov, E.R. and McDonald, I. (1979). The estimation of protein degradation in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science, Cambridge 92: 499503.
Robinson, J.J. (1987). Energy and protein requirements of the ewe. In Recent Advances in Ruminant Nutrition. pp 187204. (Eds) W., Haresign and D.J.A., Cole Butterworths; London.

Effects of protein source and formaldehyde treatment on the metabolism and performance of pregnant and lactating ewes fed straw

  • D. Handford (a1), S.E. Pattinson (a1), L.A. Sinclair (a1) and R.G. Wilkinson (a1)

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