ISSN:
1432-1254
Keywords:
Aldosterone
;
Electrolytes
;
Broiler
;
Heat stress
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geography
,
Physics
Notes:
Abstract An experiment was conducted to evaluate the effects of supplementing drinking water with isomolar (0.067 mol/l) KCl or NaCl on mass gain, food and water consumption, rectal temperature, and plasma concentrations of aldosterone, Na+, and K+ in broiler chickens reared in thermoneutral and cycling heat stressing environments. Heat stress decreased (P≤0.05) mass gain, food consumption, and plasma concentrations of Na+ and K+, while increases (P≤0.05) in plasma concentrations of aldosterone, rectal temperature, and water consumption were observed. Drinking water supplemented with either KCl or NaCl increased (P≤0.05) broiler mass gain and water consumption, but had no effect (P〉0.1) on the other variables evaluated. The results of this study indicate that broiler chickens in a heat stress environment are under osmotic stress and supplementing drinking water with 0.067 mol/1 KCl or NaCl does not lessen this stress.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01245392
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