Indian Journal of Animal Research

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Indian Journal of Animal Research, volume 39 issue 2 (july to december 2005) : 86 - 91

RUMINANT HEAT STRESS: EFFECT OF SHADE AND WATER MISTING ON BEHAVIOUR AND PHYSIOLOGY OF HEAT-STRESSED FEEDLOT CROSSBRED CATTLE

A.R. Yazdani
1Department of Animal Sciences. Faculty of Agriculture. Gargan University of Agricultural Sciences and Natural Resources. Golestan Province. Iran'

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Cite article:- Yazdani A.R. (2024). RUMINANT HEAT STRESS: EFFECT OF SHADE AND WATER MISTING ON BEHAVIOUR AND PHYSIOLOGY OF HEAT-STRESSED FEEDLOT CROSSBRED CATTLE. Indian Journal of Animal Research. 39(2): 86 - 91. doi: .

ABSTRACT

Twenty-four crossbred feedlot heifers average body weight 292 kg have been selected to assess
the effect of heat stress and its relief by shade and (or) water misting on physiology and behaviour. The follOwing treatments for the experiment were used: 1) no shading or misting (control); 2) onlymisting (MIST); 3) only shading (SHADE); and 4) shading plus misting (SH + MI). The observation were included head in the feed bunk, head in or above the waterer, walking, standing, and lying behaviour. Physiological reactions like rectal temperature and respiration 'rate as well as dry matterintake, average daily gain, and feed: Gains were measured. The control heifers spent more timelying down than others (P

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