Juvenile hormone, vitellogenin and haemocyte composition in winter worker honeybees (Apis mellifera)
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The haemolymph of winter bees (long life span) in contrast to that of summer bees (short life span) has a low juvenile hormone titre and a high protein titre. It is suggested that the winter bee physiology may be brought about by low JH-production.
© Birkhäuser Verlag 1977