饲喂颗粒日粮和添喂气溶胶OT对绵羊消化代谢的影响

发布时间：2018-01-21 04:03

本文关键词： 绵羊气溶胶颗粒日粮采食消化　出处：《新疆农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：选取4只2岁龄、体重50.19±2.3 kg的小尾寒羊空怀母羊,采用4×4拉丁方试验设计,在饲喂粉碎日粮和颗粒日粮的条件下添喂气溶胶OT(0或0.8 g"kg日粮),以研究在以上二种日粮条件下添喂气溶胶OT对绵羊自由采食和消化代谢的影响。结果表明,在粉碎日粮条件下添喂气溶胶OT绵羊的自由采食量提高8.1%(P0.05),干物质、有机物、粗蛋白、纤维素、半纤维素、钙、磷的(表观)消化率分别提高4.8%(P0.01)、4.7%(P0.01)、4.8%(P0.01)、4.7%(P0.01)、4.8%(P0.01)、-15.1%(P0.01)、4.8%(P0.01),消化量分别增加13.3%(P0.01)、14.1%(P0.01)、13.3%(P0.01)、13.3%(P0.01)、13.3%(P0.01)、13.6%(P0.01)、13.5%(P0.01)、12.9%(P0.01),氮保留增加8.4%(P0.01)。饲喂颗粒日粮时绵羊的自由采食量比饲喂粉碎日粮时增加65.1%(P0.01),干物质消化率降低13.8%(P0.01)。然而,在饲喂颗粒日粮时添喂气溶胶OT对绵羊的自由采食量、日粮消化率和氮保留却没有显著影响。
[Abstract]:Four small tail Han sheep, aged 2 years and weighing 50.19 卤2.3 kg, were selected and designed by 4 脳 4 Latin square test. Aerosol OT(0 or 0. 8 g / kg diet was added under the conditions of crushed diet and pellet diet. The effects of aerosol OT on free feed intake and digestive metabolism of sheep were studied under the above two dietary conditions. The free feed intake of aerosol OT sheep was increased by 8.1%, dry matter, organic matter, crude protein, cellulose, hemicellulose and calcium. The (apparent) digestibility of phosphorus was increased by 4. 8% (P 0. 01) and 4. 7% (P 0. 01) and 4. 8% (P 0. 01) and 4. 7% (P 0. 01) respectively. (4. 8% P0. 01 + 15. 1 + P0. 01 + 4. 8 and P0. 01, digestibility increased by 13. 3 and P0. 01, respectively). 14.1: P0.01 / 13.3T / P 0.01 / 13.3A / P 0.01 / 13.3A / P 0.01 / 13.3A / P 0.01 / 13.6A / P 0.01 / 13.6A / P 0.01). 13.5. P0.01and 12.9. P0.01). The free feed intake of sheep fed with pellet diet was higher than that with comminuted diet (65.1% P 0.01). The dry matter digestibility decreased by 13.8g / kg, but the addition of aerosol OT to the pellet diet had no significant effect on the free feed intake, dietary digestibility and nitrogen retention of sheep.
【学位授予单位】：新疆农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S826.5

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