摘要
试验选取6只内蒙古细毛羊健康泌乳母羊，分别于泌乳前期（Ⅰ、Ⅱ期）、泌乳中期（Ⅲ期）和泌乳后期（Ⅳ期），采用消化代谢、气体能量代谢等试验方法，运用灰色关联度分析法，探讨放牧条件下主要气候因素（气温、气湿、风速）对母羊不同泌乳期营养物质消化代谢的影响。结果表明，在本试验条件下，试验羊产热量受风速影响最大，机体能量存留量受气温影响最明显，而来食量、消化率、N存留量及总能代谢率等项指标与空气湿度关系最密切。
The experiment was divided into four periods:Previous lactation (Period Ⅰand Ⅱ), middle lactation (Period Ⅲ) and later lactation (Period Ⅳ ). During each period,digestion and metabolism test and gas energy metabolic test were carried out. Air temperature,relative humidity and wind velocity were measured, A grey system analysis was used. The results showed that effects of different climatic factors on digestion and metabolism were different.
基金
国家自然科学基金!39260025
关键词
气候因素
放牧
泌乳母羊
消化代谢
蒙古细羊
Climatic factor Grazing, lactating, Ewes, Digestion and Metabolism
