الفهرس 
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Abstract
A total 167 nasopharengyal swabs from apparent healthy animals and 83 from diseased animals . 600 pneumonic lung
samples and 150 apparently normal lung samples . 50 semen samples and 23 preputial washing samples . 40 vaginal
swabs , 30 cervical mucous samples and 30 retained placental samples were collected from different species (cows , bulls and calves).