Plasma progesterone levels during delayed implantation in the European badger (Meles meles).
There was a biphasic pattern of progesterone secretion during the year. Delayed implantation was characterized by low concentrations from February to June, a significant (P less than 0.001) increase during July, August and September, and a return to low levels in October-November. A second significant increase (P less than 0.001) was observed in December and early January just before the presumed time of implantation.
D000818:Animals; D002335:Carnivora / Q000097:blood*; D003338:Corpus Luteum / Q000378:metabolism; D010064:Embryo Implantation; D010065:Embryo Implantation, Delayed; D005260:Female; D010507:Periodicity; D011374:Progesterone / Q000097:blood*; D012621:Seasons
D011374:Progesterone