Photorefractoriness in birds—photoperiodic and non-photoperiodic control
✍ Scribed by Alistair Dawson; Peter J. Sharp
- Book ID
- 113957912
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 319 KB
- Volume
- 153
- Category
- Article
- ISSN
- 0016-6480
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract The photorefractory period of golden hamsters is characterized by the failure of short daylengths (<12.5 hours per 24) to induce gonadal regression. Photorefractoriness is terminated by prolonged exposure to long daylengths (>12.5 hours per 24). This study was designed to determine the
## Abstract Experiments were performed in order to provide information on the extent of involvement of daylength, if any, in the control of seasonal breeding in the tropical weaver bird. The reproductive cycle was completely abolished in both short and long photoperiods. The cycle was suppressed in