Effects of prolactin on the gonad and body weight of the male pied flycatcher during the breeding period.
In the studies concerning the regulation of testicular regression in the pied flycatcher, the antigonadal effect of ovine prolactin has been examined. The species is a migratory, hole-nesting bird. Males were given daily injections of 200 microgram prolactin for 14 days. No antigonadal effects were observed. The body weight of the prolactin treated males was significantly higher than that of the control group.
D000818:Animals; D001717:Birds; D001835:Body Weight / Q000187:drug effects*; D005640:Follicle Stimulating Hormone / Q000494:pharmacology; D007985:Leydig Cells / Q000187:drug effects; D007986:Luteinizing Hormone / Q000494:pharmacology; D008297:Male; D009929:Organ Size / Q000187:drug effects; D011388:Prolactin / Q000494:pharmacology*; D012671:Seminiferous Tubules / Q000187:drug effects; D012726:Sexual Behavior, Animal; D012756:Sheep; D013737:Testis / Q000033:anatomy & histology* / Q000187:drug effects
D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone