title: Effect of ammonium chloride on the bicarbonate buffer system in heat-stressed broilers.
abstract: 1. The effects of ammonium chloride (NH4Cl) on the bicarbonate buffer system and plasma lactate in heat-stressed broilers were investigated. 2. The infusion of a 10 g/l solution of NH4Cl into the crop during a 90 min thermoneutral period produced a metabolic acidosis resulting from a reduction in blood bicarbonate concentration. Blood bicarbonate continued to decrease in NH4Cl-treated birds and reached values which were 30% of controls by the end of a 90 min heat stress period. 3. By the end of heat stress, plasma lactate concentrations were lower in NH4Cl-infused birds than in controls.
authors.affiliation: Department of Animal Sciences, University of Arkansas, Fayetteville 72701.
authors.forename: W G
authors.initials: WG
authors.lastname: Bottje
authors.forename: T J
authors.initials: TJ
authors.lastname: Raup
authors.forename: S
authors.initials: S
authors.lastname: Wang
mesh_terms: D000136:Acid-Base Equilibrium / Q000187:drug effects*; D000643:Ammonium Chloride / Q000494:pharmacology*; D000818:Animals; D001639:Bicarbonates / Q000097:blood*; D002645:Chickens / Q000378:metabolism*; D006358:Hot Temperature / Q000009:adverse effects*; D007773:Lactates / Q000097:blood*; D008297:Male; D011201:Poultry Diseases / Q000097:blood / Q000209:etiology / Q000378:metabolism*; D013312:Stress, Physiological / Q000097:blood / Q000209:etiology / Q000378:metabolism / Q000662:veterinary*
chemical_list: D001639:Bicarbonates; D007773:Lactates; D000643:Ammonium Chloride