饲粮添加胆汁酸对16~23周龄日本蛋鹌鹑生产性能、养分表观代谢率和血清生化指标的影响  

Effects of Dietary Bile Acid on Performance,Nutrient Apparent Metabolic Rates and Serum Biochemical Indices of Laying Japanese Quails from 16 to 23 Weeks of Age

作　　者：袁琪 肖圆圆 袁剑华 薛俊敬 卿一青 郝隽毅 张沙 方热军[1] YUAN Qi;XIAO Yuanyuan;YUAN Jianhua;XUE Junjing;QING Yiqing;HAO Junyi;ZHANG Sha;FANG Rejun(College of Animal Science and Technology,Hunan Agriculture University,Changsha 410128,China;Changsha Xiangjin Feed Co.,Ltd.,Changsha 410000,China)

机构地区：[1]湖南农业大学动物科学技术学院,长沙410128 [2]长沙湘金饲料有限公司,长沙410000

出　　处：《动物营养学报》2023年第3期1658-1665,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：湖南省草食动物产业技术体系营养与饲料岗位项目;“十三五”国家重点研发计划重点专项(2018YFD0500600-05)。

摘　　要：本试验旨在研究饲粮添加胆汁酸(BA)对16~23周龄日本蛋鹌鹑生产性能、养分表观代谢率和血清生化指标的影响。将960只产蛋率相近的16周龄健康日本蛋鹌鹑随机分为4个组,每组6个重复,每个重复40只。对照组饲喂基础饲粮,试验组在基础饲粮中分别添加40、80和120 mg/kg BA。预试期1周,正试期6周。结果表明,与对照组相比:1)饲粮添加80 mg/kg BA显著提高产蛋率(P<0.05),显著降低料蛋比(P<0.05);2)饲粮添加40~120 mg/kg BA极显著提高粗蛋白质表观代谢率(P<0.01),饲粮添加40 mg/kg BA显著提高总能和干物质表观代谢率(P<0.05);3)饲粮添加40~120 mg/kg BA显著降低血清谷草转氨酶活性(P<0.05),饲粮添加40、120 mg/kg BA显著降低血清白球比(P<0.05)。由此可见,饲粮添加BA可改善日本蛋鹌鹑生产性能,提高粗蛋白质、总能和干物质的表观代谢率,降低血清谷草转氨酶活性和白球比;本试验条件下,饲粮BA适宜添加水平为80 mg/kg。This experiment was conducted to investigate the effects of dietary bile acid(BA)on performance,nutrient apparent metabolic rates and serum biochemical indices of laying Japanese quails from 16 to 23 weeks of age.Nine hundred and sixty healthy laying Japanese quails of 16weekold with similar laying rates were randomly divided into 4 groups with 6 replicates per group and 40 quails per replicate.The control group was fed a basal diet,and the experimental groups were fed the basal diets supplemented with 40,80 and 120 mg/kg BA,respectively.The preexperimental period lasted for 1 week,and the experimental period las ted for 6 weeks.The results showed as follows,compared with the control group:1)dietary 80 mg/kg BA significantly increased the laying rate(P<0.05),and significantly decreased the feed to egg ratio(P<0.05);2)dietary 40 to 120 mg/kg BA extremely significantly increased the crude protein apparent metabolic rate(P<0.01),and dietary 40 mg/kg BA significantly increased the apparent metabolic rates of total energy and dry matter(P<0.05);3)dietary 40 to 120 mg/kg BA significantly decreased the serum aspartate aminotrans ferase activity(P<0.05),and dietary 40 and 120 mg/kg BA significantly decreased the ratio of albumin to globulin in serum(P<0.05).In conclusion,dietary BA can improve the performance,the apparent metabolic rates of crude protein,total energy and dry matter,and decrease the serum aspartate aminotransferase activity of and the ratio of albumin to globulin of laying Japanese quails;under the present experimental conditions,the optimal dietary supplemental level of BA is 80 mg/kg.

关 键 词：胆汁酸 鹌鹑 生产性能 表观代谢率 血清生化指标 

分 类 号：S816[农业科学—饲料科学]