Youngren O M, el Halawani M E, Silsby J L, Phillips R E
Department of Ecology, Evolution, and Behavior, University of Minnesota, Minneapolis 55455.
Biol Reprod. 1991 Mar;44(3):425-31. doi: 10.1095/biolreprod44.3.425.
Intracranial perfusion of ovine prolactin (oPrl) via osmotic pump in laying turkey hens caused a sudden onset in incubation behavior, defined as an increase in nest visits. The hens also displayed a gradual decrease in egg laying during the time they were receiving oPrl, another indicator of the onset of incubation. Circulating immunoreactive turkey Prl levels fell during the perfusion period, even though the hens were displaying persistent nesting activity and reduced egg laying. No effects on serum LH were noted. Perfusion of oPrl during the first 14 days of photostimulation delayed the onset of egg laying by several days. No effects on serum Prl or serum LH were noted. It is suggested that incubation behavior is facilitated by central levels of Prl.
通过渗透泵向产蛋火鸡母鸡颅内灌注羊催乳素（oPrl）会导致孵蛋行为突然开始，孵蛋行为定义为进窝次数增加。在接受oPrl期间，母鸡产蛋量也逐渐下降，这是孵蛋开始的另一个指标。尽管母鸡表现出持续的进窝活动且产蛋量减少，但在灌注期间循环中免疫反应性火鸡催乳素（Prl）水平下降。未观察到对血清促黄体生成素（LH）有影响。在光照刺激的前14天灌注oPrl会使产蛋开始时间延迟几天。未观察到对血清Prl或血清LH有影响。研究表明，催乳素的中枢水平促进了孵蛋行为。
