Pulsatile secretion of luteinizing hormone and its relation to pause days and egg production in dual purpose hens treated with antiprolactin agent.

The article presents a study on the amplitude and frequency of leutinizing hormone (LH) in hens with antiprolactin agent and its effects on plasma prolactin (PRL), LH, estradiol, progesterone, intersequence pause days and egg production. Results revealed that PRL concentration was lower in bromocriptine treated birds with high concentration of LH and showed higher egg production, less pause days with concomitant increase in plasma LH. The results hypothesized that control of PRL with anti prolactin agent caused enhanced steroid hormone profile.