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首页> 外文期刊>Malaysian Journal of Animal Science >A Case Study: Environmental stressor leading to reproduction problem in a cow
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A Case Study: Environmental stressor leading to reproduction problem in a cow

机译：案例研究：环境压力导致奶牛繁殖问题

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Heat stress may have long-lasting effects on the reproductive physiology where the fertility will be reduced. During gestation, heat stress affects also the reproductive success of the cow through its direct effect on the early foetus development. The present case reports the incidence of heat stress causing abortion of a full-term foetus and a retained placenta in a cow. A 4-year-old Kedah-Kelantan cross cow weighing 250 kg was presented with a primary complaint of abortion and a retained placenta. The cow was managed intensively on a dirt ground without shade. Physical examination revealed that the cow was pyrexic (40?C) with congested mucous membrane. However, the body temperature reduced after the cow was showered and transferred into a shade facility. The most noticeable abnormality was the fouled smelling placenta hanging from the vulva. The case was diagnosed as abortion due to environmental stress. Treatment of flunixin meglumine 1.1 mg/kg and oxytetracycline 20 mg/kg were administered accordingly where the cow responded well to the medication. The farm manager was advised to shift all pregnant animals into a facility with shade and practise good waste management in the farm to prevent the occurrence of abortion and other problems related to heat stress. The prognosis of the case was good with prompt diagnosis and effective treatment.
机译：热应激可能会对生殖生理产生长期影响，从而降低生育能力。妊娠期间，热应激通过直接影响胎儿早期发育，也影响了母牛的繁殖成功。本病例报道了热应激的发生，该热应激导致流产的足月胎儿和牛胎盘残留。一名4岁的重达250公斤的吉打-吉兰丹杂交母牛被提出，主要是流产和胎盘保留。在没有阴影的肮脏地面上对母牛进行集中管理。体格检查发现母牛是高热（40？C），粘膜充血。但是，在给牛洗澡并转移到阴凉处之后，体温降低了。最明显的异常是外阴上挂着的脏臭的胎盘。该病例被诊断为因环境压力流产。在母牛对药物反应良好的地方，相应地给予氟尼辛葡甲胺1.1 mg / kg和土霉素20 mg / kg的治疗。建议农场经理将所有怀孕的动物转移到阴凉处，并在农场中进行良好的废物管理，以防止发生流产和其他与热应激有关的问题。该病例预后良好，诊断迅速，治疗有效。

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