Hatchery hygiene evaluation as measured by microbiological examination of samples of fluff.
D000391:Air Microbiology; D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D002645:Chickens; D005651:Fumigation; D005658:Fungi / Q000302:isolation & purification; D011201:Poultry Diseases / Q000382:microbiology*; D014422:Turkeys