现代畜牧科技Issue(8)：8-13,6.DOI:10.19369/j.cnki.2095-9737.2024.08.002
不同断奶日龄对舍饲肉用羔羊小肠组织形态发育变化的影响
Effect of Different Early Weaned Day on Histomorphometric Development of Small Intestine for Confined Lambs
摘要
Abstract
The objective of this study was to investigate the effect of early weaned on histomorphometric development of small intestine for confined lambs.Fifty-five male lambs(small tail han sheep and dorset sheep)were divided into 3 treatments.The crypt depth,villus height and V/C were measured.The results showed that weaning at 28 days had a greater effect on small intestinal histomorphologic indexes than that at 42 days,but its recovery ability was stronger(recovery began at 7 days after weaning).Duodenal villus height and crypt depth of weaning group at 28 days after weaning continued were decreased significantly.The indexes of the 42-day-old weaning group also were decreased with the days after weaning,but the decrease was small.From the proximal end of small intestine to the distal end of small intestine,the effect of weaning on small intestine histomorphologic indexes was weaker.The results indicated that the different weaning age of the lambs in the house feeding had a certain effect on the small intestinal histomorphologic indexes.The recovery ability of small intestinal histomorphologic index of 28-day-old weaned lambs was stronger than the 42-day-old of weaned lambs.关键词
舍饲/羔羊/小肠/组织/发育Key words
barn feeding/lamb/small intestine/tissue/development分类
农业科技引用本文复制引用
魏占虎,王聪,李冲,郭江鹏,刘根新..不同断奶日龄对舍饲肉用羔羊小肠组织形态发育变化的影响[J].现代畜牧科技,2024,(8):8-13,6.基金项目
甘肃省教育厅2022年教育科技创新科研项目:断奶羔羊应激综合防控措施研究及推广(课题批准号2022A-285) （课题批准号2022A-285）
甘肃省教育厅2024年高校教师创新基金项目:肉羊育肥全混日粮颗粒饲料开发及育肥关键技术应用与推广(课题批准号2024B-308) （课题批准号2024B-308）
