The intermittent feeding of anti-bacterial and-or antifungal agents to laying hens.
D000821:Animal Feed; D000818:Animals; D000890:Anti-Infective Agents; D000935:Antifungal Agents; D001414:Bacitracin; D002645:Chickens / Q000502:physiology*; D002751:Chlortetracycline; D003300:Copper; D004531:Eggs; D005664:Furazolidone; D007422:Intestines / Q000382:microbiology; D009761:Nystatin; D013431:Sulfates
D000890:Anti-Infective Agents; D000935:Antifungal Agents; D013431:Sulfates; D009761:Nystatin; D001414:Bacitracin; D005664:Furazolidone; D003300:Copper; D002751:Chlortetracycline