黑龙江省规模化牛场围产期奶牛亚临床维生素E缺乏的临床病理学分析  

Clinical Pathological Analysis on Subclinical Deficiency of Vitamin E in Perinatal Cows in Dairy Farms in Heilongjiang Province

作　　者：于泓漪 张翠羽 钱伟东[1] 赵畅[1] 张洪友[1] 夏成[1] YU Hong-yi;ZHANG Cui-yu;QIAN Wei-dong;ZHAO Chang;ZHANG Hong-you;XIA Cheng(College of Animal Science and Veterinary Medicine,Heilongjiang Bayi Agricultural University,Heilongjiang Key Laboratory for Prevention and Control of Bovine Disease,Daqing 163319,China)

机构地区：[1]黑龙江八一农垦大学动物科技学院黑龙江省牛病防制重点实验室,黑龙江大庆163319

出　　处：《中国兽医杂志》2020年第5期5-10,共6页Chinese Journal of Veterinary Medicine

基　　金：国家自然科学基金(31873028);标准化养殖产业扶贫示范项目(ZY17C08)。

摘　　要：为了探究规模化奶牛场亚临床维生素E缺乏以及临床病理学变化,在黑龙江省5个规模化牛场分别选取产前10 d、产后10 d、产后20 d的泌乳奶牛各10头,其体况、年龄、胎次均相近,检测血中维生素E、Cu、Se、Zn、MDA、ALT、AST、CEHC、T-AOC、GSH-Px等理化指标。结果显示:A场、C场、D场和E场的奶牛在产后均发生了亚临床维生素E缺乏,5个场的奶牛在产后10 d和产后20 d的平均发生率为52%和16%,并且随着维生素E含量的减少,羧基乙基羟基苯并氢化吡喃(CEHC)和丙二醛(MDA)含量呈现规律性的升高。其他指标未发现类似的变化规律。表明规模化牛场奶牛产后10 d易发维生素E缺乏,CEHC和MDA可以作为奶牛亚临床维生素E缺乏的预测指标,为今后奶牛亚临床维生素E缺乏的早期监测和预防提供科学依据。In order to investigate the subclinical vitamin E deficiency and clinicopathological changes in large-scale dairy farms,10 lactating cows 10 days before delivery,10 lactating cows 10 days after delivery,and 10 lactating cows 20 days after delivery were selected from 5 large-scale cattle farms in Heilongjiang province.Body condition,age and calving times of cows were similar.Vitamin E,Cu,Se,Zn,MDA,ALT,AST,CEHC,T-AOC,GSH-Px and other physical and chemical indexes in blood were detected.The results showed that vitamin E deficiency occurred in dairy cattle in field A,C,D and E.The average incidence of 5 farms was 52%,16%on 10 days and 20 days after delivery.With the decrease of vitamin E content,the contents of carboxylethyl hydroxybenzopyran(CEHC)and malondialdehyde(MDA)increased regularly.No similar change were found in other indexes.Conclusions obtained is that in large-scale cattle farms vitamin E deficiency of dairy cows are susceptible 10 days after calving,while the CEHC and MDA can be used as the related prediction index of the vitamin E deficiency in the dairy cows.

关 键 词：泌乳奶牛 亚临床维生素E缺乏 羧基乙基羟基苯并氢化吡喃 丙二醛 

分 类 号：S858.31[农业科学—临床兽医学]