甘肃高山细毛羊成年母羊四季采食量及消化率测定

发布时间：2019-03-17 12:04

【摘要】：选择15只甘肃高山细毛羊成年母羊,采用链烷法测定四季干物质采食量和牧草消化率,其结果为:每只成年母羊春夏秋冬四季干物质采食量分别为0.85,1.36,1.48和0.75kg·d~(-1),成年母羊每kg代谢体重四季采食量分别为61.72,93.86,93.83和47.99g·(w0.75kg)-1。每只甘肃高山细羊春夏秋冬四季代谢能食入量分别为6.11,13.30,13.99和5.08 MJ·d~(-1);粗蛋白质食入量分别为71.49,212.31,188.26和43.83g·d~(-1);钙食入量分别为2.27,8.22,9.61和2.58g·d~(-1);磷食入量分别为0.94,4.98,5.87和1.01g·d~(-1)。甘肃高山细毛羊成年母羊春夏秋冬四季牧草干物质消化率分别为44.65%,64.02%,57.73%和45.98%,四季牧草粗蛋白质消化率分别为47.40%,62.69%,59.67%和48.05%。
[Abstract]:Fifteen adult ewes of Gansu Alpine fine wool sheep were selected to determine the feed intake and forage digestibility of dry matter in four seasons by chain alkane method. The results were as follows: dry matter intake per adult ewes in spring, summer, autumn and winter were 0.85, 1.36, 1.48 and 0.75kg 路d ~ (- 1), respectively. The feed intake per kg metabolic weight of adult ewes in the four seasons was 61.72, 93.86, 93.83 and 47.99 g (w0.75kg)-1. The metabolic energy intake, crude protein intake and crude protein intake were 6.11, 13.30, 13.99 and 5.08 MJ 路d ~ (- 1), 71.49212.31188.26 and 43.83g 路d ~ (- 1), respectively, in each Gansu Alpine fine sheep in spring, summer, autumn and winter, and the metabolic energy intake was 6.11, 13.30, 13.99 and 5.08 MJ 路d ~ (- 1), respectively. Calcium intake was 2.27,8.22,9.61 and 2.58g 路d ~ (- 1), phosphorus intake was 0.94,4.98, 5.87 and 1.01g 路d ~ (- 1), respectively. The digestibility of dry matter in spring, summer, autumn and winter was 44.65%, 64.02%, 57.73% and 45.98%, respectively, and the digestibility of crude protein in four seasons was 47.40%, 62.69%, respectively, and the digestibility of crude protein in four seasons was 44.65%, 64.02%, 57.73% and 45.98%, respectively. 59.67% and 48.05%.
【作者单位】：甘肃农业大学动物科学技术学院;
【基金】：公益性行业(农业)科研专项放牧牛羊营养均衡需要研究与示范(201303062) 牧区极端气候条件下牛羊应急专用饲料研究与示范(201303062-5)资助
【分类号】：S826

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