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Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs

BACKGROUND: Flammulina velutipes stem waste (FVS) is the by-product of mushroom industry. The objectives of this study were to determine the available energy and amino acid digestibility of FVS fed to pigs, and to evaluate the effects of dietary FVS inclusion on growth performance, biochemical profi...

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Autores principales: Liu, Xuzhou, Zhang, Bo, Liu, Hansuo, Zhang, Gang, Zhao, Jinbiao, Liu, Ling, Piao, Xiangshu, Song, Hui, Zhang, Shuai, Li, Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7197121/
https://www.ncbi.nlm.nih.gov/pubmed/32391146
http://dx.doi.org/10.1186/s40104-020-00449-y
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author Liu, Xuzhou
Zhang, Bo
Liu, Hansuo
Zhang, Gang
Zhao, Jinbiao
Liu, Ling
Piao, Xiangshu
Song, Hui
Zhang, Shuai
Li, Yu
author_facet Liu, Xuzhou
Zhang, Bo
Liu, Hansuo
Zhang, Gang
Zhao, Jinbiao
Liu, Ling
Piao, Xiangshu
Song, Hui
Zhang, Shuai
Li, Yu
author_sort Liu, Xuzhou
collection PubMed
description BACKGROUND: Flammulina velutipes stem waste (FVS) is the by-product of mushroom industry. The objectives of this study were to determine the available energy and amino acid digestibility of FVS fed to pigs, and to evaluate the effects of dietary FVS inclusion on growth performance, biochemical profile of serum, fecal short chain fatty acid (SCFA) concentration, carcass traits, meat quality, intestinal morphology and microflora of pigs. In Exp. 1, twelve crossbred barrows with initial body weight (IBW) of 37.48 ± 4.31 kg were randomly allotted to 2 dietary treatments, including a corn basal diet and an experimental diet containing 24.35% FVS. In Exp. 2, twelve barrows fitted with an ileal T-cannula (IBW: 32.56 ± 1.67 kg) were randomly allotted to 2 dietary treatments, which included a N-free diet and an experimental diet containing 40.0% FVS. In Exp. 3, ninety growing pigs (IBW: 63.98 ± 6.89 kg) were allotted to 1 of 3 treatment diets for 63 d, including a basal diet and 2 experimental diets with 2.5% and 5% FVS, respectively. RESULTS: The digestible energy (DE) and metabolizable energy (ME) of FVS were 4.58 and 4.06 MJ/kg on dry matter basis, respectively, and the standardized ileal digestibility (SID) of indispensable AAs ranged from 17.50% to 59.47%. Pigs fed diets with 2.5% FVS showed no difference on average daily gain (ADG) and gain to feed ratio (G/F). Although dietary 5% FVS inclusion impaired apparent total tract digestibility (ATTD) of organic matter and gross energy, it elevated the SCFA concentration (P ≤ 0.04) in gut and antioxidant capacity in serum. In addition, dietary FVS inclusion depressed the backfat thickness (P = 0.03) in pigs. The longissimus dorsi muscle of pigs fed FVS revealed higher n-3 polyunsaturated fatty acid concentration and optimized fatty acid composition. Dietary 2.5% FVS inclusion also improved the intestinal development and health by increasing the villius height to crypt depth ratio (V/C) in jejunum (P < 0.01), and promoting microbial diversity and beneficial microbiota proliferation. CONCLUSIONS: It is feasible to include moderate content of FVS as an unconventional fiber ingredient in diet of growing-finishing pigs.
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spelling pubmed-71971212020-05-08 Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs Liu, Xuzhou Zhang, Bo Liu, Hansuo Zhang, Gang Zhao, Jinbiao Liu, Ling Piao, Xiangshu Song, Hui Zhang, Shuai Li, Yu J Anim Sci Biotechnol Research BACKGROUND: Flammulina velutipes stem waste (FVS) is the by-product of mushroom industry. The objectives of this study were to determine the available energy and amino acid digestibility of FVS fed to pigs, and to evaluate the effects of dietary FVS inclusion on growth performance, biochemical profile of serum, fecal short chain fatty acid (SCFA) concentration, carcass traits, meat quality, intestinal morphology and microflora of pigs. In Exp. 1, twelve crossbred barrows with initial body weight (IBW) of 37.48 ± 4.31 kg were randomly allotted to 2 dietary treatments, including a corn basal diet and an experimental diet containing 24.35% FVS. In Exp. 2, twelve barrows fitted with an ileal T-cannula (IBW: 32.56 ± 1.67 kg) were randomly allotted to 2 dietary treatments, which included a N-free diet and an experimental diet containing 40.0% FVS. In Exp. 3, ninety growing pigs (IBW: 63.98 ± 6.89 kg) were allotted to 1 of 3 treatment diets for 63 d, including a basal diet and 2 experimental diets with 2.5% and 5% FVS, respectively. RESULTS: The digestible energy (DE) and metabolizable energy (ME) of FVS were 4.58 and 4.06 MJ/kg on dry matter basis, respectively, and the standardized ileal digestibility (SID) of indispensable AAs ranged from 17.50% to 59.47%. Pigs fed diets with 2.5% FVS showed no difference on average daily gain (ADG) and gain to feed ratio (G/F). Although dietary 5% FVS inclusion impaired apparent total tract digestibility (ATTD) of organic matter and gross energy, it elevated the SCFA concentration (P ≤ 0.04) in gut and antioxidant capacity in serum. In addition, dietary FVS inclusion depressed the backfat thickness (P = 0.03) in pigs. The longissimus dorsi muscle of pigs fed FVS revealed higher n-3 polyunsaturated fatty acid concentration and optimized fatty acid composition. Dietary 2.5% FVS inclusion also improved the intestinal development and health by increasing the villius height to crypt depth ratio (V/C) in jejunum (P < 0.01), and promoting microbial diversity and beneficial microbiota proliferation. CONCLUSIONS: It is feasible to include moderate content of FVS as an unconventional fiber ingredient in diet of growing-finishing pigs. BioMed Central 2020-05-04 /pmc/articles/PMC7197121/ /pubmed/32391146 http://dx.doi.org/10.1186/s40104-020-00449-y Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Liu, Xuzhou
Zhang, Bo
Liu, Hansuo
Zhang, Gang
Zhao, Jinbiao
Liu, Ling
Piao, Xiangshu
Song, Hui
Zhang, Shuai
Li, Yu
Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title_full Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title_fullStr Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title_full_unstemmed Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title_short Determination of the available energy values and amino acid digestibility of Flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
title_sort determination of the available energy values and amino acid digestibility of flammulina velutipes stem waste and its effects on carcass trait and meat quality fed to growing-finishing pigs
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7197121/
https://www.ncbi.nlm.nih.gov/pubmed/32391146
http://dx.doi.org/10.1186/s40104-020-00449-y
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