[Sanitary condition and productivity of a farm raising laying hens free of leukosis].
D000383:Agriculture; D000818:Animals; D001353:Avian Leukosis; D002645:Chickens; D005260:Female; D005602:France; D012499:Sanitation
Etat sanitaire et productivité d'un élevage de poules pondeuses exemptes de leucose.