Effect of carbonated water on arterial pH, PCO2 and plasma lactate in heat-stressed broilers.
1. The effects of tap (TW) or carbonated (CW) water on arterial pH, partial pressure of carbon dioxide (PCO2) and plasma lactate were determined in heat-stressed broilers. Water treatments were infused directly into the crop at a rate of 0.4 ml/min kg BW. 2. Heat stress increased body temperature (Tb) and respiration rate (RR) but both were higher in birds given CW after 4 and 5 h than in TW-infused controls. However, PCO2 was lower and arterial pH and plasma lactate were higher in TW-infused birds after 4 and 5 h of heat stress than in CW-infused birds. Hematocrit was also higher in CW-treated birds after 4 and 5 h of heat stress than in TW controls. 3. The results indicate that CW is capable of attenuating changes in blood pH and PCO2 in heat-stressed domestic fowl. The lower pH in CW birds after 4 and 5 h of heat stress may have suppressed plasma lactate concentrations in these birds.
Raup
T J
TJ
Department of Animal and Poultry Sciences, University of Arkansas, Fayetteville 72701.
Bottje
W G
WG
D000818:Animals; D001158:Arteries; D001628:Beverages; D001785:Blood Gas Monitoring, Transcutaneous / Q000662:veterinary; D002253:Carbonated Beverages; D002645:Chickens / Q000097:blood*; D006400:Hematocrit / Q000662:veterinary; D006358:Hot Temperature / Q000009:adverse effects*; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000097:blood*; D019344:Lactic Acid; D008297:Male; D012119:Respiration; D013312:Stress, Physiological / Q000662:veterinary*; D013997:Time Factors; D014867:Water / Q000494:pharmacology*
D007773:Lactates; D014867:Water; D019344:Lactic Acid