| 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 |
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| 引用本文： | 马淑梅,华登科,郭艳丽,孙研研,李冬立,刘念,李云雷,薛夫光,白皓,陈超,李复煌,陈继兰.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. |
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| 作者姓名： | 马淑梅 华登科 郭艳丽 孙研研 李冬立 刘念 李云雷 薛夫光 白皓 陈超 李复煌 陈继兰 |
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| 作者单位： | 1. 中国农业科学院北京畜牧兽医研究所，动物营养学国家重点实验室，北京 100193;2. 甘肃农业大学动物科学技术学院,兰州,730070;3. 北京市畜牧总站,北京,100029 |
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| 基金项目： | 现代农业产业技术体系建设专项资金项目，中国农业科学院科技创新工程 |
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| 摘 要： | 本试验旨在研究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。采用单因子完全随机设计,将432只1日龄商品代北京油鸡随机分配到高、中和低3种营养水平组,每组4个重复,每个重复36只鸡,自由采食、饮水。饲粮按中速黄羽肉鸡的饲养标准分为3个阶段(1~5周、6~9周和10~13周),每个阶段在保持蛋白质与能量比值不变的情况下分别设置高、中和低3种营养水平。结果表明,1~5周,低营养水平组肉鸡的平均日采食量和平均日增重极显著低于中、高营养水平组(P0.01);中营养水平组的平均日增重显著高于低营养水平组(P0.05),料重比显著低于低营养水平组(P0.05)。饲粮营养水平对肉品质未表现出显著影响(P0.05)。高营养水平组母鸡鸡冠重和鸡冠长度极显著高于中、低营养水平组(P0.01),鸡冠高度显著高于中、低营养水平组(P0.05),高营养水平组有促进卵巢重的趋势(P=0.08)。饲粮营养水平对公鸡性成熟指标未表现出显著影响(P0.05)。由此可见,对于中速型黄羽肉鸡,中营养水平的饲粮能获得较好的生长性能,高营养水平的饲粮能促进母鸡性成熟。
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| 关 键 词： | 北京油鸡 营养水平 生长性能 肉品质 性成熟 |
Effects of Dietary Nutrient Level on Growth Performance,Meat Quality and Sexual Maturity of Yellow-Feathered Broilers |
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| 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. |
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| Keywords: | Beijing-You chickens nutrient level growth performance meat quality sexual maturity |
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