搜索结果: 1-1 共查到“医学 ongoing sheep trade”相关记录1条 . 查询时间(0.187 秒)
Vaccination and abattoir monitoring – the key to protecting ongoing sheep trade
Vaccination and abattoir monitoring ongoing sheep trade
2009/12/22
NSW Chief Veterinary Officer, Bruce Christie, today warned sheep producers that if current rates of Ovine Johne’s disease (OJD) infection continue, trading opportunities could be affected.