Complete Nutrient Content of Four Species of Feeder Insects

  • Finke M
  • 183

    Readers

    Mendeley users who have this article in their library.
  • 68

    Citations

    Citations of this article.

Abstract

A variety of insects are commonly fed to captive insectivores but detailed nutritional analyses are only available for the most commonly fed species. Soldier fly larvae, Turkestan cockroach nymphs, tebo worms, and adult house flies were analyzed for moisture, protein, fat, ash, acid detergent fiber, neutral detergent fiber, minerals, amino acids, fatty acids, vitamins, and selected carotenoids. The acid detergent fiber was analyzed for amino acids to estimate chitin content. Nutrient content varied widely between the four insect species. Ranges for the macronutrients were as follows: moisture (60.2-74.8%), crude protein (15.5-19.7%), crude fat (1.9%-29.4%), acid detergent fiber (1.4-3.0%), neutral detergent fiber (2.6-3.8%), and ash (0.8-3.5%). Energy content ranged from a low of 918 kcal/kg for house flies to 2,977 kcal/kg for tebo worms. The chitin content of these four species ranged from 6.7 to 21.0 mg/kg. The nutrients most likely to be deficient when these species of insects are used as food for insectivores are vitamin A, vitamin D, calcium, vitamin E, thiamine, iodine, and vitamin B(12) . The number of nutrients deficient vs. the NRC requirements for rats on an energy basis by insect species was as follows: soldier fly larvae (3), tebo worms (15), Turkestan cockroach nymphs (5), and adult house flies (6). These data are valuable in helping assess the nutrient intake of captive insectivores and in developing gut-loading diets to improve the nutrient intake of captive insectivores.

Author-supplied keywords

  • Amino acids
  • Fatty acids
  • Insects
  • Minerals
  • Vitamins

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Mark D. Finke

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free