动物营养学报2016，Vol.28Issue(12)：64-71,8.DOI:10.3969/j.issn.1006-267x.2016.12.010
饲粮粗蛋白质水平对济宁百日鸡繁殖性能及初生雏鸡器官指数和血清生化指标的影响
Effects of Dietary Crude Protein Level on Reproductive Performance, Organ Indexes and Serum Biochemical Parameters for Newborn Chicks of Jining Bairi Chickens
摘要
Abstract
This experiment was conducted to study the effects of dietary crude protein level on reproductive performance and organ indexes, serum biochemical parameters for newborn chicks of Jining Bairi chickens, and to measure the optimal protein requirement of Jining Bairi chickens from 41 to 48 weeks of age. A single⁃factor completely randomized experiment design was applied, and a total of 525 healthy 40⁃week⁃old Jining Bairi laying hens with similar weight and laying rate ( P>0.05) were randomly allocated into 5 groups with 5 replicates per group and 21 chickens per replicate. The crude protein levels of the experimental diets were 13%, 14%, 15%, 16% and 17%, respectively. The pretest period lasted for 7 days and the experiment lasted for 56 days. The results showed as follows:1) dietary crude protein level had an extremely significant effect on aver⁃age daily crude protein intake ( ADCPI) ( P<0.01) , and the ADCPI was increased with dietary crude protein level increasing. 2) Dietary crude protein level had significant effects on total egg number, hatchable egg num⁃ber and hatched chick number (P<0.05 or P<0.01). 3) Breed dietary crude protein level had a significant effect on heart index of newborn chicks hatched at the age of 44 weeks ( P<0.05) . Breed dietary crude protein level had a significant effect on small intestine index of newborn chicks hatched at the age of 48 weeks ( P<0.05) , and had extremely significantly effects on liver index and serum uric acid content of newborn chicks hatched at the age of 48 weeks ( P<0.01) . In conclusion, the suitable dietary crude protein level for the breed optimal reproductive performance of Jining Bairi laying hens from 41 to 48 weeks of age is 14.81%.关键词
粗蛋白质水平/济宁百日鸡/繁殖性能/初生雏鸡Key words
crude protein level/Jining Bairi chickens/reproductive performance/newborn chicks分类
农业科技引用本文复制引用
殷若新,张帅,张倩,石天虹,曹丙健,胡希怡,丁祥文,苏鹏程,宋志刚..饲粮粗蛋白质水平对济宁百日鸡繁殖性能及初生雏鸡器官指数和血清生化指标的影响[J].动物营养学报,2016,28(12):64-71,8.基金项目
山东省现代农业产业技术体系家禽创新团队项目 （）
