放牧牛の凍結糞を与えたガゼラエンマコガネ Onthophagus gazella の増殖

概要

論文の詳細を見る
Reproductive characteristics of the dung beetle, Onthophagus gazella F., which fed on pastured cattle dung in the laboratory were analyzed in relation to the freezing-thawing treatment and sampling season of the dung. The short-term freezing of dung did not affect the mean number of progenies emerged. The mean number of progenies emerged, the emergence rate and the size of progenies were all satisfactory when beetles fed on frozen-thawed dung sampled during June and August. The dung sampled in November, with which the least number of progenies was produced, contained less crude protein, crude fat and water, but contained more organic cell walls. The crude chemical composition of dung sampled in other months, however, did not show significant difference each other. These findings might give fundamental knowledge for maintaining and mass-rearing of the beetle in the laboratory in midwinter when cattle dung is no more available in pastures.
日本衛生動物学会の論文
1991-09-15