Observations on dwarf layers particularly in the presence of Mareks disease in random sample tests at Ploufragan.
D000818:Animals; D001353:Avian Leukosis / Q000150:complications*; D002645:Chickens; D004392:Dwarfism / Q000150:complications / Q000662:veterinary*; D005260:Female; D010060:Ovulation; D010523:Peripheral Nervous System Diseases / Q000150:complications / Q000662:veterinary; D011201:Poultry Diseases / Q000150:complications*