动物营养学报Issue(10)：3207-3217,11.DOI:10.3969/j.issn.1006-267x.2015.10.028
饲粮游离棉酚水平对蛋鸡肝脏棉酚蓄积及生产性能、蛋品质的影响
Effects of Dietary Free Gossypol Levels on Liver Gossypol Accumulation, Performance and Egg Quality of Laying Hens
摘要
Abstract
This experiment was conducted to investigate the effects of hepatic gossypol accumulation and the performance and egg quality of laying hens which long-term feeding with diet containing free gossypol, in or-der to provide theoretical support to make better use of cotton meal resources. Two hundred and seventy Hy-Line brown laying hens of 23-week-old were randomly subjected to three groups for 45 weeks, the content of free gossypol in three diets was 0, 20 and 40 mg/kg, respectively. The results showed that laying hens fed with free gossypol diet for long-term induced the accumulation of free gossypol in the liver, lead to disorder and injury of hepatic cell structure. Compared with the control group, long-term fed with free gossypol diets had no significantly effect on performance and laying performance of laying hens ( P>0.05) , but significantly increased the mortality and elimination rate at later stage ( from 31 to 45 weeks) and increased yolk color from 1 to 10 weeks ( P<0.05) . It is concluded that long-term feeding with gossypol diet can result in accumulation of free gossypol in hens’ liver, and then the gossypol toxicity induce liver injury and affect liver function. Al-though diets containing 20 or 40 mg/kg free gossypol have little effect on the performance and laying perform-ance of laying hens, but the mortality and elimination rate at later stage of hens are significant high. Results in-dicate that the higher mortality and elimination rate of hens may be connected with the cumulative toxicity of gossypol in liver.关键词
游离棉酚/蛋鸡/肝脏/生产性能Key words
free gossypol/laying hens/liver/performance分类
农业科技引用本文复制引用
焦洪超,侯楠楠,姜明君,宋志刚,林海..饲粮游离棉酚水平对蛋鸡肝脏棉酚蓄积及生产性能、蛋品质的影响[J].动物营养学报,2015,(10):3207-3217,11.基金项目
国家自然科学基金项目(31201816) （31201816）
现代农业产业技术体系建设专项资金项目(CARS-41-K14) （CARS-41-K14）
