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Very interesting study on the sperm usage of queens

Home Forums HoneyLove Forum Very interesting study on the sperm usage of queens

This topic contains 1 reply, has 2 voices, and was last updated by  Ronni Kern 3 years, 3 months ago.

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  • #10293

    susan rudnicki
    Participant

    http://onlinelibrary.wiley.com/doi/10.1002/ece3.2075/abstract

    The number of sperm stored in the naturally mated queens was highly variable and ranged from 57,000 to 5,652,000. As expected, we found that the number of stored sperm was highest in 1-month-old queens (4,365,000 ± 680,903, mean ± SEM) and significantly decreased in older queens (F1,12 = 34.637, P < 0.001) (Fig. 1B).

    If you have wondered how the queen’s fertility declines as she ages and how she apportions the laying of fertile eggs to produce worker bees, this is a excellent piece. I only wonder why they did not explain the differences in naturally mated queens v.s. the AI queens they used. How did they decide how much sperm to inseminate the AI queens with? they don’t say

    #10294

    Ronni Kern
    Participant

    Actually, Susan, they said “we artificially inseminated seven virgin queens with 3 ?L and seven virgin queens with 12 ?L of semen according to a previously developed protocol (Schley 1987).” Unfortunately, the Schley paper is in German, so I was unable to read how Schley came up with the amounts.

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About susan rudnicki

Been beekeeping almost 5 years now. Have 27 hives,(2 client hives) I work with the City of Manhattan Beach, re-homing bees in conflict with citizens. Allowed to keep bees at the Public Works yard (19 hives) in exchange for this work. I do many presentations for HoneyLove, teach bee students, rescue bees and sell honey.

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