Effect of Cowpea Hay, Groundnut Hay, Cotton Seed Meal and Maize Meal Supplementation to Maize Stover on Intake, Digestibility, Microbial Protein Supply and Acetate Kinetics in Weaner Lambs
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- 作者：S. Chakeredza ; U. ter Meulen and L.R. Ndlovu
- 关键词：acetate clearance ; digestion ; food intake ; forage supplements ; ruminal ; microbes ; sheep
- 刊名：Tropical Animal Health and Production
- 出版时间：2002
- 出版年：2002
- 期刊代码：75_00494747
- 类别：law
- 卷：34
- 期：1
- 页码：49-64
- 数据来源：sp
摘要
Ten weaner lambs were used in a double 5×5 Latin square design to evaluate the effect of supplementing maize stover (MS) with cowpea hay (CW), groundnut hay (GN), cotton seed meal (CSM) or maize meal (MM) on the intake, digestion kinetics and acetate clearance rate. CW and GN were offered at 30%w/w to MS, while CSM and MM were given at 15 g/kg0.75 per day. Supplementation reduced (ppp>0.05) in digestibility. However, the estimated ME intake was significantly (ppp>0.05) by diet, and nor were the acetate clearance rates (p>0.05), which averaged 0.0475±0.0078/min. The improvement in ME intake may have been due to a faster flow rate of digesta and a better balance of nutrients in the end-products of digestion. These results demonstrate that small amounts of forage supplements can improve nutrient intake when animals consume low-quality forages and provide a basis for comparing such supplements with bought-in protein and energy supplements.