Photoperiodic control of puberty in the red-legged partridge ( Alectoris graeca chukar)

The photoperiodic control of puberty in birds was studied using hybrid red-legged partridges ( Alectoris graeca chukar). In the wild partridges first breed at about 10 months of age. Males and females were held from hatch on short (8L: 16D) daylengths and then at 3, 4 1 2 , 6, 7 1 2 , 9, and 12 week...

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