title: Plasma prolactin levels in sows during pregnancy, parturition and early lactation.
abstract: Mean prolactin concentrations in the blood plasma ranged from 4.4 to 13.0 ng/ml during pregnancy up to the 2nd day pre partum. Concentrations increased to 20.3 ng/ml 2 days before and 103.4 ng/ml at 1 day before the start of farrowing. During farrowing values ranged from 124.2 to 147.3 ng/ml. On the 5th day of lactation the prolactin levels had fallen to 43.1 ng/ml.
mesh_terms: D000818:Animals; D005260:Female; D007743:Labor, Obstetric; D007774:Lactation; D011247:Pregnancy; D011270:Pregnancy, Animal; D011388:Prolactin / Q000097:blood*; D013552:Swine / Q000097:blood*
chemical_list: D011388:Prolactin