Reproductive Performance of Laying Worker of Apis cerana in Queenless Colonies
Journal of Apiculture(2016)
摘要
The Asian cavity-nesting honey bee, Apis cerana, the workers ovaries is very active in queenless colonies. We investigated the duration of egg laying by laying workers, egg-laying behavior, determine egg load in ovaries, estimate oviposition rate nad number of eggs per cell in three queenless colonies of Korean A. cerana. The number of eggs laid by laying workers at different times on the manipulated comb was checked and counted. We observed that the laying workers spent, on average, 109.2 seconds per cell. During oviposition, the laying workers showed two types of behaviors, viz; a still phase, and a recovery phase. On average, 4.0 of worker eggs per cell per week was recorded. The workers laid three different shapes of eggs in a cell. The laying workers ovaries retained 1 to 4 mature eggs. This suggests that a laying worker may lay from one to four eggs per oviposition. We did not observe false-queen in Korean A. cerana in three queenless colonies. In this study, we reported for the first time that one worker cell of A. cerana retains up to 33 eggs in queenless condition. The queenless colonies build the comb and lay eggs in new comb, and also reared the new queen without successful development of the queen larva from laying worker eggs.
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Honey Bees
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