Heat conditioning induces heat shock proteins in broiler chickens and turkey poults.
Peripheral leukocyte heat shock proteins (HSP: HSP90, HSP70, and HSP23) from broiler chickens and turkey poults were induced by in vitro and in vivo high temperature exposure. Heat conditioning, via a daily 1 h exposure to 41 C, enhanced in vitro HSP expression in leukocytes from chickens heat-conditioned for 1 to 2 wk, and a similar response was found in turkey poults with 3 wk of heat conditioning causing the greatest HSP expression. In vivo heat exposure trials caused maximization of HSP expression after 1 wk of daily heat conditioning exposures in broilers, but no additional enhancement was seen in chickens heat conditioned for 2 wk. Enhancement in HSP expression was evident for periods up to 4 wk after termination of the daily heat conditioning episodes.
Wang
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S
North Carolina State University, Department of Poultry Science, Raleigh 27695-7635, USA.
Edens
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FW
D000064:Acclimatization; D000375:Aging; D000818:Animals; D001831:Body Temperature; D002645:Chickens / Q000378:metabolism*; D029721:Drosophila Proteins; D018840:HSP70 Heat-Shock Proteins / Q000097:blood; D018841:HSP90 Heat-Shock Proteins / Q000097:blood; D006360:Heat-Shock Proteins / Q000096:biosynthesis* / Q000097:blood; D006358:Hot Temperature; D007962:Leukocytes / Q000378:metabolism; D008297:Male; D013462:Sulfur Radioisotopes; D013997:Time Factors; D014422:Turkeys / Q000378:metabolism*
D029721:Drosophila Proteins; D018840:HSP70 Heat-Shock Proteins; D018841:HSP90 Heat-Shock Proteins; D006360:Heat-Shock Proteins; C105998:Hsp23 protein, Drosophila; D013462:Sulfur Radioisotopes