Eyes Have a Role in Photoperiodic Control of Sexual Activity of Coturnix

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Science  27 Oct 1972:
Vol. 178, Issue 4059, pp. 421-423
DOI: 10.1126/science.178.4059.421


In blinded Japanese quail (Coturnix coturnix japonica) encephalic photoreception of the stimulus from long photoperiods is sufficient to induce and maintain normal gonadal function in females (egg laying) and in males (enlargement of the cloacal gland). However, the termination of sexual activity by short days is dependent on these birds having experienced long days at the time of blinding.