Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs

Objective The main objective of this study was to determine the energy value and digestibility of amino acids in growing pigs fed black soldier fly (BSF) with chitinase supplementation and its effect on fecal microbiota. Methods In Exp. 1, eighteen barrows with initial body weight (BW) of 31.6±1.2 k...

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Main Authors: Yuansen Yang, Shenrui Xu, Wenjun Gao, Yu Wei, Lu Wang, Changhua Lai
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2025-08-01
Series:Animal Bioscience
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Online Access:http://www.animbiosci.org/upload/pdf/ab-24-0920.pdf
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author Yuansen Yang
Shenrui Xu
Wenjun Gao
Yu Wei
Lu Wang
Changhua Lai
author_facet Yuansen Yang
Shenrui Xu
Wenjun Gao
Yu Wei
Lu Wang
Changhua Lai
author_sort Yuansen Yang
collection DOAJ
description Objective The main objective of this study was to determine the energy value and digestibility of amino acids in growing pigs fed black soldier fly (BSF) with chitinase supplementation and its effect on fecal microbiota. Methods In Exp. 1, eighteen barrows with initial body weight (BW) of 31.6±1.2 kg were randomly assigned to 3 treatments to determine the digestible energy (DE), metabolizable energy (ME), and nutrient digestibility, including the corn-soybean meal basal group, the BSF (14.6%) with 1,500 mg/kg or without chitinase groups. Fresh feces were collected on day 10 of feeding for analysis of microbial diversity. In Exp. 2, six barrows (36.7±4.2 kg BW) with ileal T-cannulas were arranged in a 6×3 Youden square design, pigs were allotted to 3 dietary treatments to determine the digestibility of the amino acids, including the nitrogen-free group, the BSF with or without chitinase groups. Results Supplemental chitinase improved (p<0.05) the apparent total tract digestibility (ATTD) of crude protein and dry matter in the BSF diet, improved (p<0.05) the ATTD of crude protein, ether extract and acid detergent fiber in the BSF, and increased the BSF's DE and ME by 2.34 MJ/kg and 1.37 MJ/kg, respectively. Chitinase supplementation improved (p<0.05) the composition of fecal microbiota of growing pigs, promoted (p<0.05) the colonisation of Bacilli, Lactobacillaceae, and Lactobacillales, and inhibited (p<0.05) the proliferation of pathogenic bacteria Sarcina. Adding chitinase enhanced the apparent ileal digestibility and standardized ileal digestibility of most amino acids in BSF, such as methionine, leucine, and glutamate (p<0.05). Conclusion Adding chitinase can increase the effective energy value and amino acid ileal digestibility of BSF, regulate the composition of fecal microbiota and improve the intestinal health of growing pigs.
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spelling doaj-art-32518fa3bd1d4e869d7b025cc00aa64d2025-08-20T02:41:55ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352025-08-013881733174510.5713/ab.24.092025471Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigsYuansen Yang0Shenrui Xu1Wenjun Gao2Yu Wei3Lu Wang4Changhua Lai5 State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, China State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, China State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, China State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, China State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, China State Key Laboratory of Animal Nutrition and Feeding, Ministry of Agriculture and Rural Affairs Feed Industry Centre, China Agriculture University, Beijing, ChinaObjective The main objective of this study was to determine the energy value and digestibility of amino acids in growing pigs fed black soldier fly (BSF) with chitinase supplementation and its effect on fecal microbiota. Methods In Exp. 1, eighteen barrows with initial body weight (BW) of 31.6±1.2 kg were randomly assigned to 3 treatments to determine the digestible energy (DE), metabolizable energy (ME), and nutrient digestibility, including the corn-soybean meal basal group, the BSF (14.6%) with 1,500 mg/kg or without chitinase groups. Fresh feces were collected on day 10 of feeding for analysis of microbial diversity. In Exp. 2, six barrows (36.7±4.2 kg BW) with ileal T-cannulas were arranged in a 6×3 Youden square design, pigs were allotted to 3 dietary treatments to determine the digestibility of the amino acids, including the nitrogen-free group, the BSF with or without chitinase groups. Results Supplemental chitinase improved (p<0.05) the apparent total tract digestibility (ATTD) of crude protein and dry matter in the BSF diet, improved (p<0.05) the ATTD of crude protein, ether extract and acid detergent fiber in the BSF, and increased the BSF's DE and ME by 2.34 MJ/kg and 1.37 MJ/kg, respectively. Chitinase supplementation improved (p<0.05) the composition of fecal microbiota of growing pigs, promoted (p<0.05) the colonisation of Bacilli, Lactobacillaceae, and Lactobacillales, and inhibited (p<0.05) the proliferation of pathogenic bacteria Sarcina. Adding chitinase enhanced the apparent ileal digestibility and standardized ileal digestibility of most amino acids in BSF, such as methionine, leucine, and glutamate (p<0.05). Conclusion Adding chitinase can increase the effective energy value and amino acid ileal digestibility of BSF, regulate the composition of fecal microbiota and improve the intestinal health of growing pigs.http://www.animbiosci.org/upload/pdf/ab-24-0920.pdfamino acids digestibilityblack soldier flychitinaseenergy valuefecal microbiotagrowing pigs
spellingShingle Yuansen Yang
Shenrui Xu
Wenjun Gao
Yu Wei
Lu Wang
Changhua Lai
Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
Animal Bioscience
amino acids digestibility
black soldier fly
chitinase
energy value
fecal microbiota
growing pigs
title Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
title_full Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
title_fullStr Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
title_full_unstemmed Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
title_short Chitinase improves the available energy, amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
title_sort chitinase improves the available energy amino acids digestibility of black soldier fly and fecal microbiota of growing pigs
topic amino acids digestibility
black soldier fly
chitinase
energy value
fecal microbiota
growing pigs
url http://www.animbiosci.org/upload/pdf/ab-24-0920.pdf
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AT luwang chitinaseimprovestheavailableenergyaminoacidsdigestibilityofblacksoldierflyandfecalmicrobiotaofgrowingpigs
AT changhualai chitinaseimprovestheavailableenergyaminoacidsdigestibilityofblacksoldierflyandfecalmicrobiotaofgrowingpigs