摘要
为了研究仔猪断奶应激对肠道功能和组织结构的影响,试验选择不同抗应激能力的莱芜猪和杜长大(DLY)商品仔猪各10头作为研究对象,分别于断奶前1周(21 d)、断奶当天(28 d)、断奶后1 d(29 d)、断奶后1周(35 d)、断奶后2周(42 d)5个阶段,测定十二指肠和空肠的消化酶活性、肠绒毛组织发育的变化。试验结果表明,两品种仔猪断奶后1周莱芜猪胰蛋白酶含量和活性比杜长大仔猪分别高81.48%(P<0.01)和21.44%(P<0.01);两品种仔猪的十二指肠肠绒毛长度在断奶后1周都比断奶前变短(P<0.05),断奶后1周莱芜猪的十二指肠和空肠肠绒毛长度比杜长大分别长73.62%(P<0.01)和65.63%(P<0.01)。莱芜猪比杜长大有更高的消化酶活性和肠道组织修复能力,具有更强的抗断奶应激的能力。
This experiment was performed to investigate the impact of weaning on Laiwu piglets and DLY piglets and assess their weaning anti-stress capabilities. A total of 20 piglets were used in this study. Digestive enzyme activity, intestinai villus histomor- phology and microflora were also analyzed. The Laiwu piglets trypsin content and activity were 81.48% （P 〈0. 01） and 21.44% （ P 〈0.01 ） greater than those of DLY at 1 week post-weaning. The duodenal villus length of both breeds was shorter at 1 week post- weaning than that during pre-weaning （ P 〈 0.05 ）, The Laiwu piglets＇ duodenal and jejunum villus length were 73.62% （ P 〈 0.01 ） and 65.63% （ P 〈0.01 ） higher than DLY at 1 week post weaning. The Laiwu piglets have greater digestive enzyme activity, and intestinal repair ability than DLY to cope with weaning stress.
作者
于光辉
姜建阳
王西彤
张华杰
耿梅
宋春阳
YU Guang-hui;JIANG Jian-yang;WANG Xi-tong;ZHANG Hua-jie;GENG Mei;SONG Chun-yang(College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 255109, China;Animal diseases and control ＆ prevention center of Weihai City, weihai 264200, China)
出处
《中国兽医杂志》
CAS
北大核心
2018年第2期23-26,29,共5页
Chinese Journal of Veterinary Medicine
基金
青岛农业大学高层次人才科研基金(6631114311)
国家自然科学基金(31601924)
山东省现代农业产业技术体系生猪创新团队(SDAIT-08-08)
关键词
杜长大
肠道发育
莱芜猪
断奶应激
Duroc × Landrace × Large White
Intestine development
Laiwu pig
Weaning Stress
