Abstract:

Insects contain high levels of protein and fat and are used as a nutrient in many countries. Insects are also a potential feed for fish and wings. Tenebrio molitor L. larvas are rich in fatty acids as well as high fat content. In this study, 70% irmic, 20% pepper and 10% mayons were used in the nutrition of T. molitor larvas, respectively, 3% and 5% and 10% of fat added. In the study, the changes in the fat additives to the ratio, the growth rate of larva and the body fat acid composition were compared with the values of the nutrition larva with the control ratio. The increase in the fat content in the race has also caused an increase in the body fat in the larva. But the increase in the fat content of the ration, especially in the first period, has led to a reduction in the intake of food by reducing the mobility of the larva. As a result, the 10% oil supplement to the ratio resulted in mass larva deaths. In comparison with the control group larva, increased fat content in the race resulted in a decrease in the rates of lauric acid (C12:0), miristic acid (C14:0), palmitoleic acid (C16:1), oleic acid (C18:1) and linolenic acid (C18:3). On the other hand, the content of pentadekanoic acid (C15:0), heptadekanoic acid (C17:0), heptadekanoic acid (C17:1) and Arachidic acid (C20:0) was undifferent from the control groups, while the level of linoleic acid (C18:2) was increased. by T. In order to increase the body fat content of the molecular larvas, it will be appropriate to add fat to the rasion in low doses (<5%) after 3 weeks of age.

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