http://pchelari.com/forum/showthread.php?t=2294
Прочети доклада на института на Йерусалим. Ще извадя съществения цитат.
Mating success of virgin queen honeybees of different ages
The mating success rate of virgin queen honeybees aged from three to eight days was determined. In general, the success rate was very similar between queens aged from 3 to 6 days and the control. The possibility that mating success declines with age is discussed, even though virgin queens stored for more than 60 days mated successfully. 13a(33)