饲粮中添加绿狐尾藻对临武鸭生长性能、屠宰性能和免疫器官指数的影响

发布时间：2018-06-21 18:01

本文选题：绿狐尾藻 + 临武鸭　；参考：《动物营养学报》2017年04期

【摘要】：本试验旨在研究饲粮中添加绿狐尾藻对武鸭生长性能、屠宰性能和免疫器官指数的影响,以确定绿狐尾藻在临武鸭饲粮中适宜添加水平。选用30日龄健康、体重相近的临武鸭480只,随机分为3组,每组设4个重复,每个重复40只。1组(对照组)饲喂基础饲粮,2组、3组分别饲喂含10%、20%绿狐尾藻的试验饲粮。试验期28 d。44和58日龄时进行屠宰,测定活体重、屠体率、半净膛率、全净膛率、胸肌率、腿肌率、皮脂率和免疫器官指数。结果表明,1)30~44日龄和45~58日龄,3组的平均日增重、平均日采食量和料重比与2组、对照组相比均显著提高(P0.05),但2组与对照组之间无显著差异(P0.05)。2)44和58日龄,各组之间活体重、屠体率、半净膛率、全净膛率、腿肌率和皮脂率均无显著差异(P0.05),2组、3组胸肌率均显著高于对照组(P0.05)。3)44日龄,各组之间胸腺指数、脾脏指数和法氏囊指数均无显著差异(P0.05);58日龄,3组法氏囊指数显著高于对照组(P0.05),3组脾脏指数显著高于对照组、2组(P0.05),各组之间胸腺指数无显著差异(P0.05)。由此可见,临武鸭饲粮中添加10%的绿狐尾藻,对生长性能、屠宰性能和免疫器官指数无明显影响。
[Abstract]:The purpose of this experiment was to study the effects of green foxtail algae on growth performance, slaughtering performance and immune organ index in order to determine the appropriate level of green fox tail algae in the diet of Linwu ducks. 480 Linwu ducks were randomly divided into 3 groups. Each group was divided into 4 replicates and 40 repeats (control group). Each group was fed with the experimental diet containing 10 ~ 20% green foxtail alga. The live weight, carcass rate, half bore rate, total bore rate, breast muscle rate, leg muscle rate, sebum rate and immune organ index were measured at 28 d.44 and 58 days of age. The results showed that the average daily gain, average daily intake and feed weight ratio of the three groups were significantly higher than those of the control group and the control group, but there was no significant difference between the 2 groups and the control group in the mean daily gain, live weight and carcass rate between the two groups. There was no significant difference in the rate of half, total, leg and sebum. The pectoralis rate of group 2 was significantly higher than that of control group (P 0.05). The thymus index of each group was significantly higher than that of control group (P 0.05). There was no significant difference in spleen index and bursa index of bursa of Fabricius. The index of bursa of Fabricius in the 3 groups was significantly higher than that in the control group (P 0.05), and the index of thymus was not significantly different among the three groups (P 0.05). The spleen index of the three groups was significantly higher than that of the control group (P 0.05), and the thymus index of the three groups was not significantly different from that of the control group. It can be seen that the addition of 10% green foxtail algae to the diet of Linwu duck had no significant effect on growth performance, slaughter performance and immune organ index.
【作者单位】：中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室中国科学院亚热带农业生态研究所长沙农业环境观测研究站;湖南农业大学动物科学技术学院;湖南省微生物研究所;
【基金】：国家自然科学青年基金项目(31302003) 国家科技支撑计划项目(2014B14AD14B05) 中科院重点部署项目(KFZD-SW-307) 湖南省战略新兴产业成果转化项目(2015GK1014) 长沙市重点科技项目(K1403031-21) 贵州省科技成果转化项目(省市院合2014-02)
【分类号】：S834.5

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