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Effect of dual feeding program and heat stress on broiler performance

Published online by Cambridge University Press:  20 November 2017

H. Hossain Zadeh
Affiliation:
Department of Animal Science, College of Agriculture, Tabriz University, Tabriz-Iran
A. M. Tahmasbi
Affiliation:
Department of Animal Science, College of Agriculture, Tabriz University, Tabriz-Iran
Gh. Moghadam
Affiliation:
Department of Animal Science, College of Agriculture, Tabriz University, Tabriz-Iran
S. Alijani
Affiliation:
Department of Animal Science, College of Agriculture, Tabriz University, Tabriz-Iran
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Extract

Heat stress is a major concern of the broiler industry due to the resulting decreased growth, feed intake and increased FCR ratio and mortality (Cooper and Washburn, 1998). Heat exposed birds decrees feed intake in order to reduce metabolic heat production and maintain hometheremy, resulting in slower growth. Genetic variation in responses to heat stress has been shown to exist between breeds (Yalcin, et al., 1997). The dual feeding program may have transitory effects on heat production during the heat stress (De Basilio et al., 2001). The aim of this research was to evaluate the response of broiler performance when a two different type of diet were offered during the heat stress.

Type
Poultry
Copyright
Copyright © The British Society of Animal Science 2003

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References

Cooper, M. A. and Washburn, K. W. 1998. The relationships of body temperature to weight gain feed consumption and feed utilization in broilers under heat stress. Poult. Sci. 77: 237242 CrossRefGoogle ScholarPubMed
De Basilio, V., M., Vilariño, S., Yahav and M., Picard. 2001. Early Age Thermal Conditioning and a Dual Feeding Program for Male Broilers Challenged by Heat Stress. Poult. Sci. 80:2936 CrossRefGoogle Scholar
Yalcin, S., Settar, P. and Ozkan, A. 1997. Comparative evaluation of three commercial broiler stocks in hot versus temperate climate. Poult. Sci. 76:921929 Google Scholar