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| α-半乳糖苷酶对肉鸡生产性能和养分代谢率的影响 | |
| 引用本文： | 马慧慧,高树华,李绍钰,魏凤仙,王琳燚,徐彬,焦玉萍,孙全友.α-半乳糖苷酶对肉鸡生产性能和养分代谢率的影响[J].河南农业科学,2012,41(5):145-149. |
| 作者姓名： | 马慧慧 高树华 李绍钰 魏凤仙 王琳燚 徐彬 焦玉萍 孙全友 |
| 作者单位： | 1. 河南农业大学牧医工程学院,河南郑州450002;河南省农业科学院畜牧兽医研究所,河南郑州450002 2. 河南农业大学牧医工程学院,河南郑州,450002 3. 河南省农业科学院畜牧兽医研究所,河南郑州,450002 |
| 基金项目： | 国家现代农业产业技术体系项目，河南省科技攻关重大项目 |
| 摘 要： | 为研究在玉米-豆粕型基础日粮中添加不同水平的α-半乳糖苷酶制剂对AA肉鸡生产性能和养分代谢率的影响。饲养试验选用1日龄AA肉仔鸡360只,随机分为5个处理,在基础日粮中分别添加0、0.05、0.10、0.15、0.20g/kgα-半乳糖苷酶制剂,每个处理6个重复,每个重复12只鸡,试验期6周,测定21d和42d的平均日增体质量、日采食量和料重比。结果表明:0.10、0.15、0.20g/kgα-半乳糖苷酶组显著提高21、42日龄日增体质量,增幅为2.56%～4.54%(P<0.05),降低42日龄的料重比,降幅为1.91%～4.59%(P<0.05);排空强饲代谢试验结果表明:在玉米-豆粕型日粮中添加α-半乳糖苷酶,提高了表观代谢能及真代谢能能值,增幅为0.31～0.34MJ/kg(P<0.05),改善了其他营养物质的利用率。综合分析,以0.1～0.2g/kgα-半乳糖苷酶添加水平效果较好。 |
| 关 键 词： | α-半乳糖苷酶 生长性能 养分代谢率 代谢能 玉米-豆粕 AA肉鸡 |
Effects of α-galactosidase on the Growth Performance and Metabolic Rate of Nutrients of Broilers |
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| MA Hui-hui , GAO Shu-hua , LI Shao-yu , WEI Feng-xian , WANG Lin-yi , XU Bin , JIAO Yu-ping , SUN Quan-you.Effects of α-galactosidase on the Growth Performance and Metabolic Rate of Nutrients of Broilers[J].Journal of Henan Agricultural Sciences,2012,41(5):145-149. | |
| Authors: | MA Hui-hui GAO Shu-hua LI Shao-yu WEI Feng-xian WANG Lin-yi XU Bin JIAO Yu-ping SUN Quan-you |
| Institution: | 1.Engineering College of Animal Husbandry and Veterinary Science,Henan Agricultural University, Zhengzhou 450002,China;2.Institute of Animal Husbandry and Veterinary Science,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China) |
| Abstract: | Experiments were conducted to study the effects of α-galactosidase on the growth performance and metabolic rate of nutrients in broilers fed with corn-soybean meal basal diet.A total of 360 one-day old Arbor Acres(AA) broilers were divided into 5 treatment groups with 6 replicates of 12 chicks in each replicate.Five treatments were supplemented with 0,0.5,0.10,0.15,0.20 g/kg α-galactosidase in the basal diets,respectively.The result showed that supplemental α-galactosidase levels of 0.10,0.15,0.20 g/kg significantly influenced daily gain 2.56%-4.54% during 0-21 days and 22-42 days,and significantly reduced feed/gain 1.91%-4.59% during 22-42 days(P<0.05).The result of metabolize experiment showed that the addition of α-galactosidase to the corn-soybean meal diet had improved metabolizable energy 0.31-0.34 MJ/kg and utilization of nutrients in diet.It was concluded that the optimal supplemental level of α-galactosidase was 0.10-0.20 g/kg. |
| Keywords: | A-galactosidase growth performance metabolic rate of nutrients metabolizable energy corn-soybean broilers |
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