[Observer in swine husbandry].
Boissevain
Iaira
I
D000822:Animal Husbandry / Q000592:standards*; D000818:Animals; D005260:Female; D007886:Legislation, Veterinary; D008297:Male; D009426:Netherlands; D013552:Swine; D014611:Vaccination / Q000331:legislation & jurisprudence / Q000379:methods / Q000662:veterinary*; D019155:Veterinary Drugs / Q000008:administration & dosage*; D014730:Veterinary Medicine / Q000592:standards*
D019155:Veterinary Drugs