Season of the year influences concentration and pattern of gonadotropins and testosterone in circulation of the bovine male

• Published in: Biology of reproduction Vol. 49; no. 5; pp. 1089 - 1095
• Main Authors: Stumpf, T.T, Wolfe, M.W, Roberson, M.S, Kittok, R.J, Kinder, J.E
• Format: Journal Article
• Language: English
• Published: Madison, WI Society for the Study of Reproduction 01.11.1993
• Subjects: Animals; Biological and medical sciences; Body Weight; Cattle; ESTACIONES DEL ANO; Estradiol - blood; Follicle Stimulating Hormone - blood; FSH; Fundamental and applied biological sciences. Psychology; GONADOTROPHINE; GONADOTROPINAS; HFS; Hormone metabolism and regulation; Luteinizing Hormone - blood; Luteinizing Hormone - metabolism; Male; Mammalian male genital system; Orchiectomy; PERIODICIDAD; PERIODICITE; Reproduction - physiology; SAISON; Seasons; SERUM SANGUIN; SUERO SANGUINEO; TAUREAU; Testis - anatomy & histology; Testis - physiology; TESTOSTERONAS; TESTOSTERONE; Testosterone - blood; Testosterone - metabolism; TORO; Vertebrates: reproduction; Androgen; Ox; Male; Gonadotropin; Blood plasma; Testosterone; Vertebrata; Mammalia; Seasonal variation; Artiodactyla; Testicular hormone; Hormonal investigation; Sex steroid hormone; Ungulata

Serum concentrations of LH vary with season of the year in ovariectomized beef and dairy cows. The objective of the present study was to determine whether concentrations and profile of the gonadotropins and testosterone (T) in circulation vary with season of year in bovine males of a composite breed...