Effect of acute heat stress on the physiological and reproductive parameters of broiler breeder hens – A study under controlled thermal stress

A study was conducted to find out the effect of thermal stress on the physiological as well as reproductive performances of broiler breeder hens. The birds were exposed to 37±1°C and RH 70% for 6 hours daily for a period of 10 days in the psychrometric chamber (THI >90). In the heat exposed group, body weight gain and feed intake (P 90 for at least 6hrs/day can impart serious damage to various physiological and reproductive performances in broiler breeder hens.