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Evaluation of nutritional values of defatted black soldierfly (Hermetia illucens) larvae meal using the precision-fedcecectomized rooster assay

作   者:
Julio C. MiotoPamela L. UtterbackCarl M. Parsons
作者机构:
Urbana IL 61801 USA University of IllinoisDepartment of Animal Sciences
关键词:
pet foodnutritionfelineAA digestibilitycanineblack soldier fly larvae
期刊名称:
Journal of Animal Science
i s s n:
0021-8812
年卷期:
2025 年 103 卷
页   码:
Evaluation of nutritional/1-Evaluation of nutritional/12
页   码:
摘   要:
The use of insects, such as black soldier fly (Hermetia illucens) larvae meal (BSFLM), as an alternative protein source for pet food has gainedattention due to their high nutritional value. The objective of this study was to determine the chemical composition, amino acid (AA) digestibility, and protein quality of defatted BSFLM of 2 distinct substrates (wheat and corn, BSFLM-W and BSFLM-C). Whole egg powder (WEP) andchicken meal (CM) were used as reference protein sources commonly used in pet foods. Twenty cecectomized roosters (5 per treatment) wererandomly allocated to the test ingredients BSFLM-C, BSFLM-W, CM, and WEP. After 26 h of feed withdrawal, 20 g of each ingredient weretube-fed, and excreta were collected for 48 h. Digestible indispensable amino acid score (DIAAS)-like values were calculated based on theAssociation of American Feed Control Officials (AAFCO), The European Pet Food Industry Federation (FEDIAF), and National Research Council(NRC) reference values for different life stages of dogs and cats. CM had the highest crude protein concentration (70.2%), followed by BSFLM-C(65.6%), BSFLM-W (59.8%), and WEP (51.2%). In general, WEP had higher AA digestibility than BSFLM and CM. BSFLM-C had comparablearginine digestibility to WEP, outperforming BSFLM-W and CM. BSFLM-C showed high AA digestibility, surpassing 75% for all indispensableAAs, particularly exceeding CM. DIAAS-like values were calculated, revealing methionine + cysteine limitations for growing puppies and adultdogs in BSFLM-W, BSFLM-C, and CM according to AAFCO and FEDIAF. NRC identified methionine + cysteine as limiting for all sources in adultdogs. For growing kittens, methionine + cysteine and phenylalanine + tyrosine were limiting in BSFLM-W, BSFLM-C, and CM based on AAFCOand FEDIAF, while NRC and FEDIAF identified phenylalanine + tyrosine as limiting for WEP. For adult cats, phenylalanine + tyrosine was limitingin BSFLM-W, BSFLM-C, and CM according to AAFCO and FEDIAF, with NRC identifying it across all sources. In summary, BSFLM sources hadhigh AA digestibility, comparable to traditional protein sources used in pet foods. When formulating diets for pets using BSFLM as the main protein source, methionine + cysteine and/or phenylalanine + tyrosine concentrations should be considered as they were the primary limiting AAs.
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