In vitro digestibility and fermentability of selected insects for dog foods

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Insects are considered as a sustainable protein source for future pet foods. Here we aimed to evaluate the protein quality of larvae of the black soldier fly (Hermetia illucens, BSF), housefly (Musca domestica, HF) and yellow mealworm (Tenebrio molitor, YMW) and to evaluate the fermentation characteristics of their indigestible fractions. Clean freeze-dried larvae were subjected to in vitro simulated canine gastric and small intestinal digestion. Undigested insect residues, shrimp chitin and fructooligosaccharides (positive control, FOS) were incubated for 48 h with inoculum with fresh feces from three dogs simulating large intestinal fermentation. The AA profiles differed among the larvae with proteins from BSF and YMW larvae containing more Val and less Met and Lys than HF larvae. The in vitro N digestibility of the HF (93.3%) and YMW (92.5%) was higher than BSF larvae (87.7%). The BSF larvae also had lower in vitro digestibility values for essential AA (92.4%) and non-essential AA (90.5%) compared to the larvae of the HF (96.6 and 96.5%) and YMW (96.9 and 95.3%). Gas production for FOS increased rapidly during the first 6 h. Low and similar amounts of gas were found for HF larvae and chitin whereas gas production slowly increased over 30 h and was slightly higher at 48 h for BSF than for chitin. Gas production for YMW increased considerably between 6 and 20 h. At 48 h, gas produced for undigested residues was comparable to shrimp chitin and lower than FOS (P 

Original languageEnglish
Pages (from-to)174-184
JournalAnimal Feed Science and Technology
Volume221
DOIs
Publication statusPublished - 2016

Fingerprint

pet foods
in vitro digestibility
insects
larvae
chitin
gas production (biological)
Hermetia illucens
Tenebrio molitor
shrimp
fermentation
gases
fructooligosaccharides
dogs
Musca domestica
protein sources
inoculum
stomach
proteins
feces
digestibility

Keywords

  • Amino acid
  • Digestibility
  • Dog
  • Fermentation product
  • In vitro
  • Insect

Cite this

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title = "In vitro digestibility and fermentability of selected insects for dog foods",
abstract = "Insects are considered as a sustainable protein source for future pet foods. Here we aimed to evaluate the protein quality of larvae of the black soldier fly (Hermetia illucens, BSF), housefly (Musca domestica, HF) and yellow mealworm (Tenebrio molitor, YMW) and to evaluate the fermentation characteristics of their indigestible fractions. Clean freeze-dried larvae were subjected to in vitro simulated canine gastric and small intestinal digestion. Undigested insect residues, shrimp chitin and fructooligosaccharides (positive control, FOS) were incubated for 48 h with inoculum with fresh feces from three dogs simulating large intestinal fermentation. The AA profiles differed among the larvae with proteins from BSF and YMW larvae containing more Val and less Met and Lys than HF larvae. The in vitro N digestibility of the HF (93.3{\%}) and YMW (92.5{\%}) was higher than BSF larvae (87.7{\%}). The BSF larvae also had lower in vitro digestibility values for essential AA (92.4{\%}) and non-essential AA (90.5{\%}) compared to the larvae of the HF (96.6 and 96.5{\%}) and YMW (96.9 and 95.3{\%}). Gas production for FOS increased rapidly during the first 6 h. Low and similar amounts of gas were found for HF larvae and chitin whereas gas production slowly increased over 30 h and was slightly higher at 48 h for BSF than for chitin. Gas production for YMW increased considerably between 6 and 20 h. At 48 h, gas produced for undigested residues was comparable to shrimp chitin and lower than FOS (P ",
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In vitro digestibility and fermentability of selected insects for dog foods. / Bosch, G.; Vervoort, J.J.M.; Hendriks, W.H.

In: Animal Feed Science and Technology, Vol. 221, 2016, p. 174-184.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - In vitro digestibility and fermentability of selected insects for dog foods

AU - Bosch, G.

AU - Vervoort, J.J.M.

AU - Hendriks, W.H.

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KW - Amino acid

KW - Digestibility

KW - Dog

KW - Fermentation product

KW - In vitro

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JO - Animal Feed Science and Technology

JF - Animal Feed Science and Technology

SN - 0377-8401

ER -