Plasma cortisol variations induced in the stallion by mating.
Plasma cortisol variations have been determined by radioimmunoassay in 5 stallions during mating and in 2 teasers during oestrous female exposure. In all the animals, cortisol plasma levels consistently increase (71.1 ng/ml vs 44.0 and 63.0 ng/ml vs 35.1, in the stallions and in the teasers, respectively) 7-30 min after female exposure; 120 min after exposure, cortisol concentrations are again low.
D000818:Animals; D004971:Estrus; D005260:Female; D006736:Horses / Q000097:blood*; D006854:Hydrocortisone / Q000097:blood*; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D011247:Pregnancy; D012726:Sexual Behavior, Animal / Q000502:physiology
D006854:Hydrocortisone