J M Aynaud

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Using the rabbit adapted chinese strain of Hog cholera, active immunization of piglets having passive colostral antibodies was studied. 65 piglets born from 11 sows were used. Concerning sows,(More)
An attenuated TGE coronavirus mutant (Nouzilly strain) relatively resistant to acidity and digestive enzymes was used for immunization of 11 seronegative pregnant sows, mainly by the oral route.(More)