http://honeybee.drawwing.org/book/diploid-drones
anledning till att man ser hål i yngelkakor, ju fler hål desto mer inavel
Langs troth on the Hive and the Honeybee https://archive.org/stream/in.ernet.dli.2015.233929/2015.233929.The-Hive_djvu.txt Biböckernas bibok https://www.researchgate.net/publication/228505138_Healthfulness_of_honeybee_colonies_Apis_mellifera_L_wintering_on_the_stores_with_addition_of_honeydew_honey Visar att lushonung funkar bra upp till 30% av vintermaten
DoD's bisyssla 