Endocrine and reproductive function in ewes exposed to the organochlorine pesticides lindane or pentachlorophenol

accouplement brebis ciclo estral control hormonal copulation corps jaune corpus luteum corticotropin corticotropina corticotropine cycle oestral efectos secundarios effet secondaire endocrine glands ewes follicule ovarien fsh gestation glande endocrine glucocorticoides glucocorticoids gonadotrophine gonadotropin release gonadotropinas gonadotropins hfs hormonal control hormonas hormone hormones hydrocortisone lactation lambing lh lindane lindano mating nontarget effects oestrous cycle ovarian follicles oveja ovulation parto parturition pentachlorophenol pentaclorofenol pregnancy reproduction secretion side effects thyroxine tiroxina