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Before the expected onset of the breeding season, Large Grey ganders were allowed 14 h light daily for 4 wk, and females the same daily photoperiod for 2 wk. Semen was collected by massage at 1-day or 2-day intervals. Ejaculate volume remained unchanged throughout the season; the av. volume of...

Sergeev, V.; Bondarenko, A.; Kosov, V.
Ptitsevodstvo, 1976, No. 11, pp 24-25