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Factors affeting pollen collection by Apis mellifera L. (Hymenoptera: apidae) and physicochemical analysis of the collected pollen

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Author(s):
Vanderlei Doniseti Acassio dos Reis
Total Authors: 1
Document type: Master's Dissertation
Press: Piracicaba.
Institution: Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC)
Defense date:
Advisor: Luis Carlos Marchini
Abstract

Hives of Africanized honeybees with pollen traps of 4.00 mm frontal holes were used in this research to evaluated trap efficiency, pollen composition and effect of the permanence or temporary trap in the biological development of the honeybee. Concerning hives with permanent traps one observed statistically significant variations in the areas of eggs and pollen, but not statistically significant ones in the areas of unsealed offsprings and sealed offsprings (workers and honey). Areas of ova which give rise to drones were not analysed due to their seasonability. The pollen collecting activities at 8 a.In. and 11 a.m. (average of 3.64 and 4.16 bees transporting pollen, respectively) were statistically similar and higler than the value observed at 4 p.m. (average of 1.36 bees transporting pollen). The mean efficiency of the pollen traps was 68.23%, decreasing with the, time being, 82.5% in the first observation and 59.0% in the last one. As to the physicochemical analysis the following mean values were obtained: 21.38% of proteins; 2.87% of ashes; 23.65% of humidity; 76.35% of dry residues; 3.57% of fat; 28.44% of total sugars; 20.66% of mEq/kg of titratable acidity and pH of 5.08. (AU)