动物营养学报Issue(1)：92-101,10.DOI:10.3969/j.issn.1006-267x.2016.01.013
能量限制对三黄鸡补偿生长及肠道结构的影响
Effects of Feed Restriction on Compensatory Growth and Intestinal Structure in Sanhuang Chickens
摘要
Abstract
This experiment was conducted to study the effects of feed restriction on compensatory growth and intestinal structure in Sanhuang chicken.The 72 female Sanhuang chickens at 15 days of age were fed in this experiment.The chickens were randomly assigned to 3 groups:ad libitum ( control group) , 15%feed restric-tion ( trial group 1) and 30%feed restriction ( trial group 2) , chickens were slaughtered to measure intestine wall thickness, villus height, crypt depth of duodenum, jejunum, ileum in feed restriction for 15 days ( 30 day-old) , compensatory growth for 14 days ( 44-day-old) , compensatory growth for 35 days ( 65-day-old) , respectively.The results were showed as follows:1) the average daily gain ( ADG) of two experiment groups after feed restriction was significantly lower than that of control group ( P<0.05) , while there was no signifi-cant difference in feed to gain ratio ( F/G) ( P>0.05) .After compensatory growth, there were no significant differences among experiment groups and control group of final weight, ADG and F/G ( P>0.05) .2) The vil-lus height of duodenum, jejunum, ileum, and villus height/crypt depth of ileum of chickens were increased by feed restriction ( P>0.05).And the intestine wall thickness of duodenum was decreased after compensatory growth, the villus height of jejunum, ileum was increased after compensatory growth ( P>0.05) .This experi-ment shows that feed res triction can significantly reduce the growth performance ofSanhuang chickens in feed restriction period, and show a tot al compensatory growth effect after compensatory growth for 35 d; feed re-striction improve the intestinal structure of chickens at a certain extent, enhance the villus height of duodenum, jejunum and ileum.关键词
能量限制/三黄鸡/补偿生长/肠壁厚度/绒毛高度/隐窝深度Key words
feed restriction/Sanhuang chicken/compensatory growth/intestine wall thicknes s/villus height/crypt depth分类
农业科技引用本文复制引用
刘路路,祁东风,闫冰雪,霍文颖,张雯雯,王婷,黄艳群,陈文..能量限制对三黄鸡补偿生长及肠道结构的影响[J].动物营养学报,2016,(1):92-101,10.基金项目
国家自然科学基金 （）
