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The dependence between the number of pollen seeds in the bee’s intestine and the intensity of the parasite’s invasion has been studied. Bees for the examination were collected in June, July and August. Group I was formed from young bees taken from combs with unsealed brood, group II – from hive bees taken from honeycombs with sealed brood, and group III – from foraging bees returning to a hive. The...
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