There is an expected increase of 60-70% in worldwide animal product consumption by 2050. This increasing demand requires a large sum of means,; feed itself will become a challenge because of the inadequate availability of natural resources, ongoing changes that are occurring in the environment, and the competition between human and animal feeds. The monetary value of the components such as Soymeal and fish meal is very high, likewise their future availability in the hereafter will be less. Insect use as an ingredient in animal diets has the potential to improve the sustainability of animal diets and to encounter growing demand for livestock products. Yet, there is little information towregarding the attitudes and willingness of people to get athe insect -based animal feed and foods. Some researches haves been conducted to assess the use of insect, larvae or meals as an component in animal feed.

Here we discuss about the data on five major insect species: i.e. Bblack soldier fly larvae, the house fly maggots, mealworms, locusts–/grasshoppers–/crickets, and silkworm meal to use as products in animal feed. These alternative resources are high in CP contents i.e.by 42-63% and so are the lipid contents which are up to 36%, which can be pressed out and used to create a full range of products includikeng biodiesel. The concentration of fatty acids of house fliesy maggots, mealworms and house crickets are comparatively high (60-70%) to the black soldier fly, which is 19-37%. The works also present thaton the palatability of these meals, which is good, and by eating this meal, fish meals and Soymeal can be replaced by 25-100%. Excepect for silkworm meal, other insect meals contains less methionine and lysine and if added with supplementation, can enhance an animal’s performance. The iInsect meal contains less levels of Ca. This paper's discussion on paper is about the insects, their chemical composition, and their advantages and disadvantages.