title: Effect of atmospheric ammonia on pullets at point of lay.
abstract: Results obtained show that pullets exposed to 200 ppm atmospheric ammonia for 17 days had a reduced feed intake and reduced growth rate when compared to controls. After the ammonia exposure period at point of lay, percent egg production was less and mortality greater for the ammonia exposed group versus the controls.
mesh_terms: D000393:Air Pollutants / Q000494:pharmacology*; D000641:Ammonia / Q000494:pharmacology*; D000818:Animals; D001273:Atmosphere Exposure Chambers; D001835:Body Weight / Q000187:drug effects; D002645:Chickens / Q000502:physiology*; D003864:Depression, Chemical; D005260:Female; D010058:Oviposition / Q000187:drug effects*
chemical_list: D000393:Air Pollutants; D000641:Ammonia