Plasma prolactin and gonadotrophins during gonadal development and the onset of photorefractoriness in male and female starlings (Sturnus vulgaris) on artificial photoperiods.
Photoperiodic control of the development of the LHRH neurosecretory system of European starlings (Sturnus vulgaris) during puberty and the onset of photorefractoriness.
Thyroxine treatment induces changes in Hypothalamic gonadotrophin-releasing hormone characteristic of photorefractoriness In starlings (Sturnus vulgaris).
Changes in brain GnRH associated with photorefractoriness in house sparrows (Passerdomesticus).
Thyroxine induces photorefractoriness and stimulates prolactin secretion in European starlings (Sturnusvulgaris).
Relative and absolute photorefractoriness in turkey hens: profiles of prolactin, thyroxine, and triiodothyronine early in the reproductive cycle.
Potential role of thyroid hormones and prolactin in the programming of photorefractoriness in turkey hens.
This is only a quantitative difference from strict seasonal breeders, which become responsive to environmental stimuli when they break photorefractoriness in autumn (see Nicholls et al.
Photorefractoriness in birds and comparison with mammals.
Photoperiodism in Japanese quail: the termination of seasonal breeding by photorefractoriness.