动物营养学报2009，Vol.21Issue(4)：493-498,6.DOI:10.3969/j.issn.1006-267x.2009.04.012
日粮铜水平对断奶至2月龄生长肉兔生产性能及血清指标的影响
Effects of Dietary Copper Levels on Performance and Serum Indices of Weanling to 2-month-old Growing Meat Rabbits
摘要
Abstract
The experiment was conducted to study the effects of dietary copper levels on the production performance and ser-um indices of weanling to 2-month-old growing meat rabbits.One hundred New Zealand weanling rabbits were randomly di-vided into 5 groups with 20 replicates each and 1 rabbit in each replicate.Rabbits in the control group were fed basal diet and those in test groups were fed basal diet supplemented with 20, 40, 80 and 160 mg/kg copper (CuSO4·5H2O), respectively.The trial lasted for 28 days, including preset period for 7 days and test period for 21 days.The results showed that, the cop-per levels in diet had significant effect on the average daily gain (P=0.0024), but no significant effect on the feed/gain ra-tio and average daily intake (P>0.05) ; the copper levels in diet had no significant effect on the activities of cuprozinc-su-peroxide dismutase and ceruloplasmin in serum (P>0.05); the dietary copper levels could significantly increase the contents of total protein and globulin in serum(P=0.040 3,P=0.043 6), while the albumin, albumin/globulin ratio, urea nitrogen and total cholesterol in serum were not significantly affected (P>0.05) ; the dietary copper levels had significant effect on insulin (P=0.0059) and the growth hormone (P=0.0248), while no significant effect on the insulin-like growth factor-Ⅰ (P>0.05).In conclusion, the appropriate supplementation of copper in diet of weanling to 2-month-old New Zealand rab-bits was 40～80 mg/kg (the actual content of copper in diet was 50～90 mg/kg).关键词
铜/生长肉兔/生产性能/血清指标Key words
Copper/Growing meat rabbit/Performance/Serum indices分类
农业科技引用本文复制引用
马德磊,李福昌..日粮铜水平对断奶至2月龄生长肉兔生产性能及血清指标的影响[J].动物营养学报,2009,21(4):493-498,6.基金项目
国家公益性行业(农业)科研专项(3-52) （农业）
现代农业产业技术体系建设专项(nycytx-44) （nycytx-44）
