开食料补饲日龄对羔羊瘤胃和小肠组织形态的影响

doi:10.11686/cyxb2015187

草业学报 ›› 2016, Vol. 25 ›› Issue (4): 172-178.DOI: 10.11686/cyxb2015187

开食料补饲日龄对羔羊瘤胃和小肠组织形态的影响

汪晓娟^{1, 2}, 刘婷¹, 李发弟^{1, 2*, *}, 李冲^{1, 2}, 王维民^{1, 2}, 唐德富^{1, 2}, 李宝胜³, 王国秀¹, 田华勤¹, 席锐¹

1.甘肃农业大学动物科学技术学院,甘肃兰州730070;
2.甘肃省肉羊繁育生物技术工程实验室,甘肃民勤 733300;
3.金昌中天羊业有限公司,甘肃金昌 737100

收稿日期:2015-04-10 出版日期:2016-04-20 发布日期:2016-04-20
作者简介:汪晓娟(1977-),女,甘肃武山人,副教授,在读博士。E-mail:wangxj@gsau.edu.cn
基金资助:
国家自然科学基金项目(31260564)和现代农业产业技术体系建设专项(CARS-39)资助

Effect of starter supply age on the morphology of the rumen and small intestine in lamb

WANG Xiao-Juan^{1, 2}, LIU Ting¹, LI Fa-Di^{1, 2, *}, LI Chong^{1, 2}, WANG Wei-Min^{1, 2}, TANG De-Fu^{1, 2}, LI Bao-Sheng³, WANG Guo-Xiu¹, TIAN Hua-Qin¹, XI Rui¹

1.College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
2.Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province, Minqin 733300, China;
3.Jinchang Zhongtian Sheep Industry Limited Company, Jinchang 737100, China

Received:2015-04-10 Online:2016-04-20 Published:2016-04-20

摘要/Abstract

摘要： 为研究开食料补饲日龄对羔羊瘤胃和小肠组织形态的影响,选用72只体重接近的湖羊初生公羔(双羔,初生重3.51±0.52 kg),随机分为2组,7或42 d补饲开食料,每组36只羔羊。分别在14,28,42,56,70和84 d每组各屠宰6只羔羊,采集瘤胃和小肠组织样品。结果表明:42 d时7 d补饲组瘤胃背囊和腹囊乳头高显著高于42 d补饲组(P<0.05),42 d时7 d补饲组瘤胃腹囊乳头宽有大于42 d补饲组的趋势(P=0.053),42 d时7 d补饲组背囊肌层厚显著高于于42 d补饲组(P<0.05);28和42 d时7 d补饲组十二指肠和回肠绒毛长均显著高于42 d补饲组(P<0.05),42 d时7 d补饲组回肠隐窝深显著低于42 d补饲组(P<0.05),42 d时7 d补饲组十二指肠和回肠绒毛长和隐窝深比显著高于42 d补饲组(P<0.05)。结论 7 d补饲有利于瘤胃组织形态发育和42 d前小肠粘膜发育。

Abstract: The age at which starter is supplied to lambs can affect the development of the intestinal tract. To determine the effect of the age of starter supply on the morphology of the rumen and small intestine of lambs, 72 healthy male Hu lambs (two lambs per litter, birth weight 3.51±0.52 kg) were randomly divided into two groups: one group was supplied with starter at 7 days after birth and the other at 42 days after birth. Six lambs were selected at random for slaughter on day 14, 28, 42, 56, 70, and 84, respectively. The results showed that the rumen papillae in the dorsal sac and the ventral sac were significantly longer in the 7-day group than in the 42-day group at 42 days (P<0.05). Also, the rumen papillae in the ventral sac tended to be wider in the 7-day group than in the 42-day group at 42 days (P=0.053). The rumen muscle layer in the dorsal sac was thicker in the 7-day group than in the 42-day group at 42 days (P<0.05). The villus length, and the ratio of villus length to crypt depth of the duodenum and ileum were significantly greater in the 7-day group than in the 42-day group at 42 days (P<0.05). The depth of the ileum crypt was smaller in the 7-day group than in the 42-day group at 42 days (P<0.05). Together, these results show that supplying starter from 7 days of age could improve the development of the rumen epithelium before 84 days and the small intestinal mucosa before 42 days.

汪晓娟, 刘婷, 李发弟, 李冲, 王维民, 唐德富, 李宝胜, 王国秀, 田华勤, 席锐. 开食料补饲日龄对羔羊瘤胃和小肠组织形态的影响[J]. 草业学报, 2016, 25(4): 172-178.

WANG Xiao-Juan, LIU Ting, LI Fa-Di, LI Chong, WANG Wei-Min, TANG De-Fu, LI Bao-Sheng, WANG Guo-Xiu, TIAN Hua-Qin, XI Rui. Effect of starter supply age on the morphology of the rumen and small intestine in lamb[J]. Acta Prataculturae Sinica, 2016, 25(4): 172-178.

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开食料补饲日龄对羔羊瘤胃和小肠组织形态的影响

Effect of starter supply age on the morphology of the rumen and small intestine in lamb

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