动物营养学报Issue(1)：217-223,7.DOI:10.3969/j.issn.1006-267x.2016.01.028
饲粮营养水平对黄羽肉鸡生长性能、肉品质和性成熟的影响
Effects of Dietary Nutrient Level on Growth Performance, Meat Quality and Sexual Maturity of Yellow-Feathered Broilers
摘要
Abstract
The aim of the present study was to investigate the effects of dietary nutrient level on growth per-formance, meat quality and sexual maturity of yellow-feathered chickens.Using the completely randomized de-sign, a total of 432 one-day-old Beijing-You chicks were allocated to three nutrient level groups [ high ( H) , middle ( M) and low ( L) nutrient levels] .For each group, there were 4 replicates of 36 birds each.Feed and water were provided ad libitum.According to the feeding standard of medium-speed yellow-feathered chickens, three growth stages (1 to 5 weeks, 6 to 9 weeks and 10 to 13 weeks) were set up.The three diets had the same ratio of crude protein ( CP) to energy at the H, M and L nutrient levels .The results showed that at 1 to 5 weeks, the average daily feed intake ( ADFI) and average daily gain ( ADG) in L nutrient level group were significantly lower than those in M and H nutrient level groups ( P<0.01); the ADG in M nutrient level group was significantly higher than that in L nutrient level group (P<0.05), and the feed to gain was significantly lower than that in L nutrient level group ( P<0.05) .Dietary nutrient levels had no significant effect on meat quality ( P>0.05) .The comb weight and comb length in H nutrient level group were significantly higher than those in M and L nutrient level groups ( P<0.01) , and the comb height was significantly higher than that in M and L nutrient level groups ( P<0.05) .H nutrient level group had a tendency to increase the ovary weight ( P=0.08) .Dietary nutrient levels had no significant effect on sexual maturity of the cocks ( P>0.05) .It is conclu-ded that the M nutrient level can get the better growth performance for medium-speed yellow-feathered chick-ens.The H level can promote the sexual maturity of the hens.关键词
北京油鸡/营养水平/生长性能/肉品质/性成熟Key words
Beijing-You chickens/nutrient level/growth performance/meat quality/sexual maturity分类
农业科技引用本文复制引用
马淑梅,陈超,李复煌,陈继兰,华登科,郭艳丽,孙研研,李冬立,刘念,李云雷,薛夫光,白皓..饲粮营养水平对黄羽肉鸡生长性能、肉品质和性成熟的影响[J].动物营养学报,2016,(1):217-223,7.基金项目
现代农业产业技术体系建设专项资金项目（ CARS-42）；中国农业科学院科技创新工程 （）
