Digestibility of black soldier fly larvae (Hermetia illucens) fed to leopard geckos (Eublepharis macularius)

Autor:	Cameron Q. Buck, Renee T. Carter, Jordan W. Peters, Karina Butler-Perez, Kelly E. Rockwell, Kimberly Boykin, Mark A. Mitchell
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Male Life Cycles Hermetia illucens Physiology Biopsy Organic chemistry 0403 veterinary science chemistry.chemical_compound Larvae Medicine and Health Sciences Simuliidae Vitamin A Mammals Multidisciplinary biology 05 social sciences Eukaryota Lizards Vitamins 04 agricultural and veterinary sciences Body Fluids Physical sciences Chemistry Blood Liver Larva Vertebrates Frogs Medicine Animal Nutritional Physiological Phenomena Digestion Anatomy Nutritive Value Research Article Vitamin 040301 veterinary sciences Science chemistry.chemical_element Surgical and Invasive Medical Procedures Calcium Amphibians Chemical compounds Animal science Organic compounds Animals 0501 psychology and cognitive sciences Dry matter Gut loading 050102 behavioral science & comparative psychology Plasma Volume Feces Nutrition Leopards Organisms Biology and Life Sciences Nutrients biology.organism_classification Animal Feed Diet Calcium Dietary Fat-Soluble Vitamin chemistry Amniotes Cats Developmental Biology
Zdroj:	PLoS ONE, Vol 15, Iss 5, p e0232496 (2020) PLoS ONE
ISSN:	1932-6203
Popis:	Black soldier fly (BSF) larvae have been marketed as an excellent choice for providing calcium to reptiles without the need of dusting or gut loading. However, previous studies have indicated that they have limited calcium digestibility and are deficient in fat soluble vitamins (A, D3, and E). In this feeding and digestibility trial, 24 adult male leopard geckos were fed one of three diets for 4 months: 1) whole, vitamin A gut loaded larvae; 2) needle pierced, vitamin A gut loaded larvae; or 3) whole, non-gut loaded larvae. Fecal output from the geckos was collected daily and apparent digestibility was calculated for dry matter, protein, fat, and minerals. There were no differences in digestibility coefficients among groups. Most nutrients were well digested by the leopard geckos when compared to previous studies, with the exception of calcium (digestibility co-efficient 43%), as the calcium-rich exoskeleton usually remained intact after passage through the GI tract. Biochemistry profiles revealed possible deficits occurring over time for calcium, sodium, and total protein. In regards to vitamin A digestibility, plasma and liver vitamin A concentrations were significantly higher in the supplemented groups (plasma- gut loaded groups: 33.38 ± 7.11 ng/ml, control group: 25.8 ± 6.72 ng/ml, t = 1.906, p = 0.04; liver- gut loaded groups: 28.67 ± 18.90 μg/g, control group: 14.13 ± 7.41 μg/g, t = 1.951, p = 0.03). While leopard geckos are able to digest most of the nutrients provided by BSF larvae, including those that have been gut loaded, more research needs to be performed to assess whether or not they provide adequate calcium in their non-supplemented form.
Databáze:	OpenAIRE
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