Body Compositional Changes of Fatty Acid and Amino Acid from the Queen of Bumblebee, Bombus terrestris during Overwintering
2017
Sampat Ghosh, Andong National University, Andong, Republic of Korea | Choi, K., Yecheon Entomology Instutute, Yecheon, Republic of Korea | Kim, S., Gyeongsangbuk-do Agricultural Resource Management, Sangju, Republic of Korea | Jung, C., Andong National University, Andong, Republic of Korea
The body weight and body compositions were measured on Buff-tailed Bumblebee, Bombus terrestris queen during overwintering to understand the change of the physical status and to evaluate the nutritional requirement for the oviposition by queen after overwinter. Results revealed increase in body weight and body fat (6.5 and 9.5% respectively) during the first week of overwintering initiation and subsequent decrease (11 and 79.5% respectively) in the later phase of overwintering. On the other hand, during early stage of overwinter the total body protein content increased by 12.3%, and by the end of overwintering, it was 37.6% higher than that of early stage. In the present investigation, the decreasing trend of fats and increasing trend of amino acids and thus proteins during overwintering suggest that the fats are primarily utilized for the metabolic purposes during diapause when bumble bee queens could not consume any feed, and the protein helps to sustain and lowering the freezing point in time of sub-zero temperatures of overwintering in temperate zone.
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