Urea Supplementation Increases Nitrogen Retention in Sheep Fed with Leucaenapallida (Kx2) Foliage
DOI:
https://doi.org/10.59120/drj.v2i1.74Keywords:
Ovis bovidae, condensed tannin, nitrogen balance, nitrogen digestibility, dry matter digestibility, sheepAbstract
Leucaena pallida (Kx2) is a good source of protein for sheep if its condensed tannin is only minimal. Alternative source of N could then- be given. This study determined the response of sheep to urea supplementation in terms of N balance, N digestibility and dry matter (DM) digestibility. Fifteen Merino wethers (ave. weight - 32.5 kg) were randomly distributed to 5 treatments. They were fed with Leucaena pallida foliage (750 g DM per day) and approximately 240 g of different urea concentrations in molasses as carrier (0, 6.1, 19.8, 28.0, and 45.9 g of urea/d). N and DM contents of L. pallida, urea in molasses mixture, urine, and feces were determined. Regression analysis was used to determine the relationship between N intake from urea in molasses, N digestibility, and DM digestibility. N retention and digestibility were improved and significantly related to N intake from urea with r2 values equivalent to 0.816 and
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References
Barry, T.M., and S.J. Duncan 1984. The role of condensed tannins in the nutritional value of Lotus pedunculatus for sheep: Voluntary intake. British Journal of Nutrition, 51: 458-491.
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Copyright (c) 1999 Janoz Xn Yesu S. Laquihon, David M. McNiel
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