Causes of ovine abortion, vaccination protocols and uptake: an overview

Charlotte Jones, David Charles
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Abstract

Ovine abortion is a worldwide problem for sheep farmers, and can have a variety of infectious and non-infectious causes. The most notable infectious causes are Chlamydia abortus and Toxoplasma gondii, but there are a range of pathogens known to farmers and vets. Diagnosis is achieved by post-mortem examination of aborted lambs and testing of samples including, but not limited to, the foetal membranes and placenta. There are several efficacious vaccines available in the UK targeting abortion-associated pathogens, mainly to be administered before mating. Vaccine uptake is variable, and more emphasis on farmers complying with protocols needed.
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绵羊流产的原因,疫苗接种方案和吸收:概述
绵羊流产是一个世界性的问题,对牧羊者来说,可能有各种传染性和非传染性的原因。最显著的传染原因是流产衣原体和刚地弓形虫,但农民和兽医都知道有一系列的病原体。诊断是通过对流产羔羊的死后检查和对包括但不限于胎膜和胎盘在内的样本进行测试来实现的。英国有几种针对堕胎相关病原体的有效疫苗,主要是在交配前接种。疫苗的吸收是可变的,需要更多地强调农民遵守协议。
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