中国畜牧杂志2017，Vol.53Issue(7)：72-76,80,6.DOI:10.19556/j.0258-7033.2017-07-072
0～56日龄陕北白绒山羊胃肠道组织形态发育探究
Morphological Development of Gastrointestinal Tissue in Shanbei White Cashmere Goats at the Age 0～56 Days
摘要
Abstract
This experiment was to study the morphology development characteristics of gastrointestinal tissues in lambs at different day ages after birth.24 Shanbei White Cashmere Goats were divided into 8 groups according to the completely random experiment designs (n=8).Gastrointestinal contents and tissues were sampled after the lambs were slaughtered at ages of the birth day 0,3,7,14,21,28,42 and 56.Paraffin section by conventional method and HE staining was then prepared to determine development characteristics and related parameters of various tissue biopsies stomach chamber fermentation index.The results show that from day 0 to day 56,rumen pH fluctuated at a range of 5.35 ～ 6.28,and abomasum pH value ranged 3.29 ～ 4.39.The papilla height of the dorsal sac rumen gradually increased with the lamb growth,The indicators of reticulum morphological presented a trend of gradual increase with the lamb growth.The duodenum villus height differed in 0,3,7,14,28 and 56 days (P ＜ 0.05);Ileal crypt depth also presented a significant difference in 0,3,14,42 and 56 days (P ＜ 0.05);Jejunum villus height differed only in 0,14 and 56 days (P ＜ 0.05).In conclusion,the 28-day-old was a critical point of gastrointestinal tissue morphological development and its development extent was close to that of 28-56 days,implicating that Shaanbei White Cashmere Goat could be weaned with a supply of milk replacer at the age of 28 day-old weaning by using.关键词
陕北白绒山羊/解剖/胃肠道、组织切片Key words
Shanbei white cashmere goats/Anatomy/Gastrointestinal tract/Tissue sections分类
农业科技引用本文复制引用
张科,李碧波,杨雨鑫,陈玉林..0～56日龄陕北白绒山羊胃肠道组织形态发育探究[J].中国畜牧杂志,2017,53(7):72-76,80,6.基金项目
国家绒毛用羊产业技术体系(CARS-40-13) （CARS-40-13）
公益性行业(农业)科研专项(201303059) （农业）
