Stress hormone responses of sheep to food and water deprivation at high and low ambient temperatures

animal welfare bienestar animal blood blood plasma dehydration environmental temperature estres food deprivation glucocorticoides glucocorticoids inanition osmotic pressure ovin ovinos plasma sanguin pression osmotique privation d'eau prolactin prolactina prolactine restricted feeding sang sangre sheep somatotropin somatotropina somatotropine starvation stress temperatura temperatura ambiental temperature water deprivation