Genetic differences in the physiological responses of sheep in tropical environment

Journal: Journal of Animal Behaviour and Biometeorology (Vol.2, No. 1)

Publication Date: 2014-01-31

Authors : Bonifácio Benicio de Souza Nayanne Lopes Batista Ivanete Susin Iran José Oliveira da Silva Rafael Cedric Möller Meneghini Ariane Cristina de Castro Marlon Richard Hilário da Silva;

Page : 1-5

Keywords : bioclimatology; heat stress; physiological parameters;

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Abstract

Were used 18 ewes of three different breed group, distributed in a completely randomized design in a factorial diagram (3 x 3, 3 breed group: Santa Inês (SI); ? Santa Inês + ? Dorper (Do x SI), and ? Santa Inês + ? Texel (Tx x SI) and 3 times of observation: (07:00, 13:00 and 19:00 hours) with 6 repetitions. The aim of this research was to evaluate the physiological responses of Santa Ines and their crossbred with Dorper and Texel breeds to climate conditions of Piracicaba - SP. The variance analysis did not show significant interactions (P>0.05) between the studied factors. It was verified the effect of the breed group to the RT (rectal temperature), ST (skin temperature) and RR (respiratory rate). The SI breed presented RT and RR lower (P

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Genetic differences in the physiological responses of sheep in tropical environment

Abstract

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