Department of Agriculture Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Fytokou Str., 38446, Volos, Greece.
Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytokou Str., 38446, Volos, Greece.
Sci Rep. 2020 Jul 8;10(1):11224. doi: 10.1038/s41598-020-67363-1.
We evaluated the suitability of forty-four commodities (i.e., cereal flours and meals, non-flour, cereal commodities, legumes and various commodities of vegetative and animal origin) as oviposition and feeding substrates for the yellow mealworm, Tenebrio molitor. Τen T. molitor adults were introduced in plastic vials containing 30 g of each commodity. At the end of the 1 week period, all adults were removed, and mortality was determined; then the vials were further incubated for additional 9 weeks. After this time, the vials were opened, and the larvae of each vial were separated from the feeding substrate, counted and weighed as a group. The efficiency of ingested food conversion was calculated for each substrate. Finally, proximate composition was calculated to determine the nutrient components of the feeding substrates tested and the T. molitor larvae that fed on various selected substrates. In general, adult reproduction was clearly favoured by most amylaceous substrates tested, which was in contrast to the tested legumes on which fewer offspring were produced. Similar effects were observed for larval development. Feeding on selected substrates exerted an impact on the nutrient composition of T. molitor larvae, with a high protein content of the substrate usually resulting in a high protein content of the larvae.
我们评估了 44 种商品（即谷物粉和餐食、非谷物、谷物商品、豆类和各种植物和动物来源的商品）作为黄粉虫（Tenebrio molitor）产卵和取食基质的适宜性。将 30 克每种商品装入塑料小瓶中，然后引入成虫。在 1 周结束时，取出所有成虫，确定死亡率；然后将小瓶进一步孵育 9 周。经过这段时间后，打开小瓶，将每个小瓶中的幼虫与取食基质分离，作为一组进行计数和称重。计算每种基质的食物转化率效率。最后，计算了饲料基质的近似成分，以确定测试的饲料基质和以各种选定的基质为食的黄粉虫幼虫的营养成分。一般来说，大多数测试的含淀粉基质明显有利于成虫繁殖，而测试的豆类则产生较少的后代。幼虫发育也观察到了类似的影响。选择的基质喂养对黄粉虫幼虫的营养成分有影响，通常基质的蛋白质含量高，幼虫的蛋白质含量也高。
