In vivo digestibility,intake and nitrogen balance of lambs fed different barley herbage:sorghum silage diets

摘要：

Animal production in the south of Buenos Aires Province (Argentina) is frequently based on winter annual grasses with high crude protein (CP) content but an important fraction of dietary N may be lost before the small intestine (Elizalde and Santini, 1992).To attain a more stable forage offer, the winter annual pasture is partially substituted by sorghum silage (Adelhadi and Santini, 2005) and the proportion of both forages in the diet varies as a consequence of fluctuations in grass yield.The different herbage:silage proportion in the diet can affect animal perfomance and N retention in the animal could be a useful indicator of this fact.This work evaluated the nutritional effect of grass:silage replacement.

关键词： barley herbage sorghum silage substitution intake nitrogen balance

作者: M.Arzadun S.Arias J.Freddi A.Piazza

作者单位: Facultad de Agronomía.Universidad Nacionaldel Centro.A v.Republica de Italia 780,Azul,Argentina

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）