Journal
ANIMAL BIOTECHNOLOGY
Volume 34, Issue 5, Pages 1840-1848Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10495398.2022.2047995
Keywords
Heat tolerance; gene; cattle
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Heat stress is a cumulative detrimental effect caused by an imbalance between heat production and dissipation in the body. In cattle exposed to heat stress, gene networks respond to environmental heat loads by coordinating cellular and whole-animal metabolism changes. This study examined evidence from genes associated with heat tolerance, providing valuable resource material for breeding programs aimed at increasing cattle thermotolerance.
Heat stress is described as the cumulative detrimental effect caused by an imbalance between heat production within the body and heat dissipation. When cattle are exposed to heat stress with skin surface temperatures exceeding 35 degrees C, gene networks within and across cells respond to environmental heat loads with both intra and extracellular signals that coordinate cellular and whole-animal metabolism changes to store heat and rapidly increase evaporative heat loss. In this study, we examined evidence from genes known to be associated with heat tolerance (Hsp70, HSF1, HspB8, SOD1, PRLH, ATP1A1, MTOR, and EIF2AK4). This information could serve as valuable resource material for breeding programs aimed at increasing the thermotolerance of cattle.
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