Studies on resistance to Dictyocaulus infection. IV. The rate of acquisition of protective immunity in infection of D. viviparus.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases; D004022:Dictyocaulus Infections; D009349:Nematode Infections / Q000662:veterinary*
CATTLE/diseases; NEMATODE INFECTIONS/veterinary