Spreading and clustering of oviposition pattern in Japanese quail after partial or complete hypothalamic deafferentation of the infundibular complex.

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Two lines of immature female Japanese quail were subjected to partial or complete hypothalamic deafferentation, followed by exposure to long- and short-day photoregimens.The results indicate that if the encephalic photosensitive area is included in the deafferented hypothalamic dome, birds are able to respond long-day and eventually come into lay, though the patterns of oviposition are modified depending upon the type of the cuts. It is concluded that for egg production in the Japanese quail, the infundibular complex plays the key role and afferent control might be subsidiary.
日本家禽学会の論文