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抗应激处理对肉牛引入后发病的影响

ISSN号：1001-9111
期刊名称：《中国牛业科学》
时间：0
分类：S858.23[农业科学—临床兽医学;农业科学—兽医学;农业科学—畜牧兽医]
作者机构：[1]华中农业大学农业微生物学国家重点实验室,湖北武汉430070, [2]华中农业大学动物医学院,湖北武汉430070, [3]湖北省武汉科前生物制品有限公司,湖北武汉430070, [4]河南农业大学,河南郑州450002
相关基金：现代农业（肉牛）产业技术体系专项资助（MATS-Beef Cattle system）; 国家公益性行业（农业）科研专项“家畜生产运输过程中环境应激响应及调控技术研究（201003060）”资助

作者：彭清洁[1,2], 石磊[1,3], 毛存志[4], 张雅莉[4], 白智迪[1,3], 胡长敏[1,3], 邓立新[4], 陈焕春[1,3], 郭爱珍[1,3]

关键词：牛, 运输, 应激, 牛支原体, 牛支原体肺炎综合征, 盐酸氯丙嗪, Beef, Transportation, Stress, Bovine Mycoplasma, Bovine Mycoplasma Pneunomia Syndrome, Chlorpromazine Hydrochloride

中文摘要：

[目的]旨在探讨肉牛启运前进行抗应激处理对降低肉牛引入后发病的效果。[方法]对两批共99头牛分别进行启运前注射牛支原体灭活疫苗（第一批）与盐酸氯丙嗪（第二批）,途中运输时间分别为36 h与48 h,运输途中不给食物与饮水。牛运抵后继续观察35 d,记录发病情况。[结果]两批对照牛的平均发病率为67%。小体重组（250－300 kg）牛的发病率显著高于大体重组（300－350 kg组和350－400 kg组）发病率（P〈0.05）。虽然接种疫苗诱导产生了抗体,但接种应激加重了牛引入后发病。牛运输前肌注盐酸氯丙嗪组较对照组发病率显著降低（P〈0.05）,且0.6 mg/kg比0.3 mg/kg效果更好（P〈0.05）。[结论]启运前采用肌注盐酸氯丙嗪的抗应激处理能显著降低牛引入后的发病率。

英文摘要：

【Objective】This study was aimed to explore the effect of anti stress treatment on disease occurrence of the heifers after arrival at feedlots.【Method】Two batches of 99 heifers were injected bovine mycoplasma inactivated vaccine（the first batch） and Chlorpromazine Hydrochloride（the second batch）,respectively.The transportation time was 36 h and 48 h for the two batches,respectively.During the transportation,no water and feed were provided to the heifers.After arriving,the heifers continued the observation of 35 days.Then the disease occurrence was recorded.【Result】The overall average incidence for the two groups was 67%.The low bodyweight group（250～300 kg） had a apparently higher incidence（90%） than that of high bodyweight group（300～350 kg and 350～400 kg）.Although the vaccination before the transportation induced the antibody production,the inoculation stress exacerbated the disease occurrence.However,the Chlorpromazine Hydrochloride injection group significantly decreased the incidence.Furthermore the group with 0.6mg/kg dosage exerted better efficacy than that of 0.3 mg/kg group.【Conclusion】the antistress treatment with Chlorpromazine Hydrochloride injection before transportation could significantly decrease the disease incidence of heifers after arrival at feedlots.

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