2023-02-27 ワシントン州立大学(WSU)
女王蜂バンキングとは、春に余剰の女王蜂を保存し、秋に巣箱を補充するために使用する方法であり、女王蜂の品質が重要な要素です。この研究では、屋内の冷蔵庫で女王蜂を冷やすことで、女王蜂の品質が向上し、より安定した保存が可能になることが分かりました。
また、女王蜂の需要が高まる春に、生産者が余剰の女王蜂を保存しておくことで、秋に需要が戻ってきた際に需要を満たすことができるというメリットもあります。これにより、女王蜂の保存や管理に関する技術の改善が、ハチの巣の喪失率低減につながることが期待されます。
＜関連情報＞
- https://news.wsu.edu/press-release/2023/02/27/indoor-queen-banking-could-help-beekeepers-deal-with-changing-climate/
- https://www.tandfonline.com/doi/full/10.1080/00218839.2023.2165747
屋外で行う女王蜂のバンキングに代わる夏の屋内バンキング Summer indoor queen banking as an alternative to outdoor queen banking practices
Anna Webb,Stephen O. Onayemi,Rae L. Olsson,Kelly Kulhanek & Brandon K. Hopkins
Journal of Apicultural Research Published:17 Jan 2023
DOI:https://doi.org/10.1080/00218839.2023.2165747
Abstract
Honey bee queens are the most critical individuals of a complex eusocial society. Queen banking is the storage of queens individually in cages and placed in a colony to be cared for by worker bees. Queen producers bank excess queens as seasonal demand subsides in the summer to provide an on-demand supply to beekeepers. This approach, however, might be threatened by wildfires, decreased forage availability, and climate change. For this study, we compared current summer outdoor queen banking practices in northern California with banking in indoor temperature-controlled storage facilities to investigate the effectiveness of indoor storage as an alternative to outdoor storage in the summer. Treatments were separated into three groups: indoor queen banks, outdoor queen banks, and a set of unbanked control queens provided with three different stocking rates (50, 100, and 198 queens per bank). Queen quality parameters and survival data were assessed using laboratory and field assessment methods. We found no significant difference in queen quality parameters apart from the weight of indoor queens banked at the rate of 100, which were significantly lower than the other banking rates. Queens stored indoors had a significantly higher survival of 78 ± 1% than queens stored outdoors with a survival of 62 ± 3%. Indoor banking performed better in quality and survival as compared to outdoor queen banking. Therefore, queen banking has the potential to mitigate the valuable fall queen supply caused by rising hot summer temperatures.
