title: Peripheral blood levels of progesterone in female camels during various reproductive stages.
abstract: Determination of serum progesterone concentrations over a period of 2 years in female camels during various reproductive stages (estrus, pregnant, nonpregnant, and lactating) suggests that the progesterone levels exceeding 1 ng/ml are reached only if mating is fertile. A cycling camel does not have a luteal phase and mating is probably indispensable for ovulation to occur.
mesh_terms: D000818:Animals; D002162:Camelus / Q000097:blood*; D004971:Estrus; D005260:Female; D007774:Lactation; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D012098:Reproduction
chemical_list: D011374:Progesterone