Proceedings: Increase in serum prolactin in sheep associated with long daylength and feeding ad libitum.
D000818:Animals; D002940:Circadian Rhythm; D005247:Feeding Behavior; D007601:Jugular Veins; D008027:Light; D011388:Prolactin / Q000097:blood*; D011863:Radioimmunoassay; D012756:Sheep / Q000254:growth & development*
D011388:Prolactin