Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates

To explore the causes of different growth rates among juvenile populations of largemouth bass, in the present study, a batch of largemouth bass juveniles reared under the same conditions were divided into a fast-growing group and a slow-growing group. We used histological, enzymatic and molecular bi...

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Main Authors: Xin Su, Da Ji, Junjie Yao, Yuanlong Zou, Mengzhi Yan
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Fishes
Subjects:
Online Access:https://www.mdpi.com/2410-3888/7/2/65
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author Xin Su
Da Ji
Junjie Yao
Yuanlong Zou
Mengzhi Yan
author_facet Xin Su
Da Ji
Junjie Yao
Yuanlong Zou
Mengzhi Yan
author_sort Xin Su
collection DOAJ
description To explore the causes of different growth rates among juvenile populations of largemouth bass, in the present study, a batch of largemouth bass juveniles reared under the same conditions were divided into a fast-growing group and a slow-growing group. We used histological, enzymatic and molecular biology methods to analyze and determine their histomorphological changes, digestive enzyme activity and intestinal floral composition. The fast-growing group had a significantly (<i>p</i> ≤ 0.01) greater intestinal fold height and muscle thickness than the slow-growing group. Lipase activity was significantly (<i>p</i> ≤ 0.01) higher in the fast-growing group than in the slow-growing group. Intestinal microbial analysis showed that the relative abundance of <i>Actinobacteria</i> and Halomonas in the fast-growing group was higher than that in the slow-growing group. This research shows that the differentiation of growth rates in juvenile largemouth bass populations is closely related to intestinal fold status, lipase activity, and intestinal flora.
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spelling doaj.art-08953bdde15b43699b2789779a393c512023-12-01T20:52:47ZengMDPI AGFishes2410-38882022-03-01726510.3390/fishes7020065Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth RatesXin Su0Da Ji1Junjie Yao2Yuanlong Zou3Mengzhi Yan4Research Center of Fishery Resources and Environment, Guizhou University, Guiyang 550025, ChinaResearch Center of Fishery Resources and Environment, Guizhou University, Guiyang 550025, ChinaResearch Center of Fishery Resources and Environment, Guizhou University, Guiyang 550025, ChinaResearch Center of Fishery Resources and Environment, Guizhou University, Guiyang 550025, ChinaResearch Center of Fishery Resources and Environment, Guizhou University, Guiyang 550025, ChinaTo explore the causes of different growth rates among juvenile populations of largemouth bass, in the present study, a batch of largemouth bass juveniles reared under the same conditions were divided into a fast-growing group and a slow-growing group. We used histological, enzymatic and molecular biology methods to analyze and determine their histomorphological changes, digestive enzyme activity and intestinal floral composition. The fast-growing group had a significantly (<i>p</i> ≤ 0.01) greater intestinal fold height and muscle thickness than the slow-growing group. Lipase activity was significantly (<i>p</i> ≤ 0.01) higher in the fast-growing group than in the slow-growing group. Intestinal microbial analysis showed that the relative abundance of <i>Actinobacteria</i> and Halomonas in the fast-growing group was higher than that in the slow-growing group. This research shows that the differentiation of growth rates in juvenile largemouth bass populations is closely related to intestinal fold status, lipase activity, and intestinal flora.https://www.mdpi.com/2410-3888/7/2/65largemouth bass juvenilegrowth rateintestinal featuresintestinal flora
spellingShingle Xin Su
Da Ji
Junjie Yao
Yuanlong Zou
Mengzhi Yan
Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
Fishes
largemouth bass juvenile
growth rate
intestinal features
intestinal flora
title Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
title_full Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
title_fullStr Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
title_full_unstemmed Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
title_short Comparative Analysis of Intestinal Characteristics of Largemouth Bass (<i>Micropterus salmoides</i>) and Intestinal Flora with Different Growth Rates
title_sort comparative analysis of intestinal characteristics of largemouth bass i micropterus salmoides i and intestinal flora with different growth rates
topic largemouth bass juvenile
growth rate
intestinal features
intestinal flora
url https://www.mdpi.com/2410-3888/7/2/65
work_keys_str_mv AT xinsu comparativeanalysisofintestinalcharacteristicsoflargemouthbassimicropterussalmoidesiandintestinalflorawithdifferentgrowthrates
AT daji comparativeanalysisofintestinalcharacteristicsoflargemouthbassimicropterussalmoidesiandintestinalflorawithdifferentgrowthrates
AT junjieyao comparativeanalysisofintestinalcharacteristicsoflargemouthbassimicropterussalmoidesiandintestinalflorawithdifferentgrowthrates
AT yuanlongzou comparativeanalysisofintestinalcharacteristicsoflargemouthbassimicropterussalmoidesiandintestinalflorawithdifferentgrowthrates
AT mengzhiyan comparativeanalysisofintestinalcharacteristicsoflargemouthbassimicropterussalmoidesiandintestinalflorawithdifferentgrowthrates