Effects of three naturally extracted polysaccharides on the growth, antioxidant capacity, and intestinal health during early-stage of juvenile lined seahorses (Hippocampus erectus) via trophic transfer

The lined seahorse (Hippocampus erectus) is a rare and valuable aquatic species with significant utilitarian value. Enhancing the growth and survival rates of juvenile lined seahorses is essential to address their high mortality rates, thereby aiding in resource recovery and artificial cultivation....

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Published in:Aquaculture 2025-02, Vol.596, p.741920, Article 741920
Main Authors: Zheng, Haolong, Zhou, Weilong, Ma, Xiaofei, Zhang, Xiabin, Zheng, Xing, Tang, Xianming, Yang, Shouguo, Shi, Yaohua, Yu, Feng, Gu, Zhifeng
Format: Article
Language:English
Subjects:
antioxidant activity
antioxidants
aquaculture
aquatic organisms
Artemia salina
Astragalus
enzymes
Food additives
genus
growth performance
Hippocampus erectus
intestinal microorganisms
intestines
Juvenile health
juveniles
Lentinula edodes
Lycium barbarum
muscles
Natural extracted polysaccharides
plate count
polysaccharides
prediction
survival rate
Trophic transmission
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container_start_page 741920
container_title Aquaculture
container_volume 596
creator Zheng, Haolong
Zhou, Weilong
Ma, Xiaofei
Zhang, Xiabin
Zheng, Xing
Tang, Xianming
Yang, Shouguo
Shi, Yaohua
Yu, Feng
Gu, Zhifeng
description The lined seahorse (Hippocampus erectus) is a rare and valuable aquatic species with significant utilitarian value. Enhancing the growth and survival rates of juvenile lined seahorses is essential to address their high mortality rates, thereby aiding in resource recovery and artificial cultivation. This study conducted a 45-day feeding experiment using brine shrimp (Artemia salina) enriched with Astragalus polysaccharide (APS), Lentinus edodes polysaccharide (LNT), and Lycium barbarum polysaccharide (LBP) to feed juvenile lined seahorses. We assessed the effects of these three naturally extracted polysaccharides on growth performance, survival rate, intestinal morphology, physiological enzyme activities, and intestinal microbiota. The results showed that supplementation with these polysaccharides significantly enhanced the growth performance and survival rates of juvenile seahorses compared to the control group without polysaccharide enrichment (P 
doi_str_mv 10.1016/j.aquaculture.2024.741920
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Enhancing the growth and survival rates of juvenile lined seahorses is essential to address their high mortality rates, thereby aiding in resource recovery and artificial cultivation. This study conducted a 45-day feeding experiment using brine shrimp (Artemia salina) enriched with Astragalus polysaccharide (APS), Lentinus edodes polysaccharide (LNT), and Lycium barbarum polysaccharide (LBP) to feed juvenile lined seahorses. We assessed the effects of these three naturally extracted polysaccharides on growth performance, survival rate, intestinal morphology, physiological enzyme activities, and intestinal microbiota. The results showed that supplementation with these polysaccharides significantly enhanced the growth performance and survival rates of juvenile seahorses compared to the control group without polysaccharide enrichment (P &lt; 0.05). Survival rates increased from 36 % in the control group to over 55 % with polysaccharide supplementation. Histologically, all three natural polysaccharides significantly improved the intestinal morphology of the juveniles, including increases in mucosal height, width, and muscle thickness. Physiologically, these polysaccharides positively influenced the activities of digestive, immune, and antioxidant enzymes. Analysis of the intestinal microbiota revealed that polysaccharide supplementation significantly increased the total bacterial count and community diversity, promoting the growth of beneficial bacteria while inhibiting harmful ones at both the phylum and genus levels. Functional prediction of the intestinal microbiome indicated that microbial genes were predominantly enriched in metabolic pathways, confirming the potential benefits of these polysaccharides in promoting intestinal health. Overall, our findings suggest that supplementation with APS, LNT, and LBP effectively enhances the growth performance and survival rates of juvenile seahorses by improving their physiological conditions, intestinal structure, and microbiota. This study underscores the significance of naturally extracted polysaccharides in the cultivation of juvenile lined seahorses, offering new avenues for promoting healthy aquaculture practices and providing empirical support for their use as supplements in aquatic organisms. •Naturally extracted polysaccharides have the potential to enhance the health of juvenile lined seahorses.•Enrichment with polysaccharides has been shown to decrease mortality rates in juvenile lined seahorses.•The beneficial effects of polysaccharides can be transmitted through the food chain.</description><identifier>ISSN: 0044-8486</identifier><identifier>DOI: 10.1016/j.aquaculture.2024.741920</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>antioxidant activity ; antioxidants ; aquaculture ; aquatic organisms ; Artemia salina ; Astragalus ; enzymes ; Food additives ; genus ; growth performance ; Hippocampus erectus ; intestinal microorganisms ; intestines ; Juvenile health ; juveniles ; Lentinula edodes ; Lycium barbarum ; muscles ; Natural extracted polysaccharides ; plate count ; polysaccharides ; prediction ; survival rate ; Trophic transmission</subject><ispartof>Aquaculture, 2025-02, Vol.596, p.741920, Article 741920</ispartof><rights>2024</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c228t-b96513108a3890791c11a3baf6694b7833491076fc50f0dfe41a8e3a2524819b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Zheng, Haolong</creatorcontrib><creatorcontrib>Zhou, Weilong</creatorcontrib><creatorcontrib>Ma, Xiaofei</creatorcontrib><creatorcontrib>Zhang, Xiabin</creatorcontrib><creatorcontrib>Zheng, Xing</creatorcontrib><creatorcontrib>Tang, Xianming</creatorcontrib><creatorcontrib>Yang, Shouguo</creatorcontrib><creatorcontrib>Shi, Yaohua</creatorcontrib><creatorcontrib>Yu, Feng</creatorcontrib><creatorcontrib>Gu, Zhifeng</creatorcontrib><title>Effects of three naturally extracted polysaccharides on the growth, antioxidant capacity, and intestinal health during early-stage of juvenile lined seahorses (Hippocampus erectus) via trophic transfer</title><title>Aquaculture</title><description>The lined seahorse (Hippocampus erectus) is a rare and valuable aquatic species with significant utilitarian value. 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This study underscores the significance of naturally extracted polysaccharides in the cultivation of juvenile lined seahorses, offering new avenues for promoting healthy aquaculture practices and providing empirical support for their use as supplements in aquatic organisms. •Naturally extracted polysaccharides have the potential to enhance the health of juvenile lined seahorses.•Enrichment with polysaccharides has been shown to decrease mortality rates in juvenile lined seahorses.•The beneficial effects of polysaccharides can be transmitted through the food chain.</description><subject>antioxidant activity</subject><subject>antioxidants</subject><subject>aquaculture</subject><subject>aquatic organisms</subject><subject>Artemia salina</subject><subject>Astragalus</subject><subject>enzymes</subject><subject>Food additives</subject><subject>genus</subject><subject>growth performance</subject><subject>Hippocampus erectus</subject><subject>intestinal microorganisms</subject><subject>intestines</subject><subject>Juvenile health</subject><subject>juveniles</subject><subject>Lentinula edodes</subject><subject>Lycium barbarum</subject><subject>muscles</subject><subject>Natural extracted polysaccharides</subject><subject>plate count</subject><subject>polysaccharides</subject><subject>prediction</subject><subject>survival rate</subject><subject>Trophic transmission</subject><issn>0044-8486</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2025</creationdate><recordtype>article</recordtype><recordid>eNqNUUFu2zAQ1KEFkqb9A3NLgcolKVqijoWRNgUC9NKeiTW1tGjQpEJSTvTE_ioU3EOOPQ2wmNnZ2amqW0Y3jLL263EDTzPo2eU54oZTLjadYD2n76prSoWopZDtVfUhpSOltG237Lr6e28M6pxIMCSPEZF4KHJwbiH4kiPojAOZglsSaD1CtAMWsi9kJIcYnvP4hYDPNrzYoSDRMIG2eVmnA7E-Y8rWgyMjgssjGeZo_YEgRLfUKcMBV-vjfEZvHRJnffFLCGOIqTjdPdhpChpO05wIxnLqnD6TswWSY5hGqwuCTwbjx-q9AZfw0z-8qf58v_-9e6gff_34ufv2WGvOZa73fcndMCqhkT3teqYZg2YPpm17se9k04ie0a41eksNHQwKBhIb4FsuJOv3zU11d9k7xfA0l3TqZJNG58BjmJNq2FbwlkvaFWp_oeoYUopo1BTtCeKiGFVrZeqo3lSm1srUpbKi3V20WLKcLUaVtEWvcbDrF9QQ7H9seQXYrq1m</recordid><startdate>20250215</startdate><enddate>20250215</enddate><creator>Zheng, Haolong</creator><creator>Zhou, Weilong</creator><creator>Ma, Xiaofei</creator><creator>Zhang, Xiabin</creator><creator>Zheng, Xing</creator><creator>Tang, Xianming</creator><creator>Yang, Shouguo</creator><creator>Shi, Yaohua</creator><creator>Yu, Feng</creator><creator>Gu, Zhifeng</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20250215</creationdate><title>Effects of three naturally extracted polysaccharides on the growth, antioxidant capacity, and intestinal health during early-stage of juvenile lined seahorses (Hippocampus erectus) via trophic transfer</title><author>Zheng, Haolong ; 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Enhancing the growth and survival rates of juvenile lined seahorses is essential to address their high mortality rates, thereby aiding in resource recovery and artificial cultivation. This study conducted a 45-day feeding experiment using brine shrimp (Artemia salina) enriched with Astragalus polysaccharide (APS), Lentinus edodes polysaccharide (LNT), and Lycium barbarum polysaccharide (LBP) to feed juvenile lined seahorses. We assessed the effects of these three naturally extracted polysaccharides on growth performance, survival rate, intestinal morphology, physiological enzyme activities, and intestinal microbiota. The results showed that supplementation with these polysaccharides significantly enhanced the growth performance and survival rates of juvenile seahorses compared to the control group without polysaccharide enrichment (P &lt; 0.05). Survival rates increased from 36 % in the control group to over 55 % with polysaccharide supplementation. Histologically, all three natural polysaccharides significantly improved the intestinal morphology of the juveniles, including increases in mucosal height, width, and muscle thickness. Physiologically, these polysaccharides positively influenced the activities of digestive, immune, and antioxidant enzymes. Analysis of the intestinal microbiota revealed that polysaccharide supplementation significantly increased the total bacterial count and community diversity, promoting the growth of beneficial bacteria while inhibiting harmful ones at both the phylum and genus levels. Functional prediction of the intestinal microbiome indicated that microbial genes were predominantly enriched in metabolic pathways, confirming the potential benefits of these polysaccharides in promoting intestinal health. Overall, our findings suggest that supplementation with APS, LNT, and LBP effectively enhances the growth performance and survival rates of juvenile seahorses by improving their physiological conditions, intestinal structure, and microbiota. This study underscores the significance of naturally extracted polysaccharides in the cultivation of juvenile lined seahorses, offering new avenues for promoting healthy aquaculture practices and providing empirical support for their use as supplements in aquatic organisms. •Naturally extracted polysaccharides have the potential to enhance the health of juvenile lined seahorses.•Enrichment with polysaccharides has been shown to decrease mortality rates in juvenile lined seahorses.•The beneficial effects of polysaccharides can be transmitted through the food chain.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.aquaculture.2024.741920</doi></addata></record>
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source ScienceDirect Journals
subjects antioxidant activity
antioxidants
aquaculture
aquatic organisms
Artemia salina
Astragalus
enzymes
Food additives
genus
growth performance
Hippocampus erectus
intestinal microorganisms
intestines
Juvenile health
juveniles
Lentinula edodes
Lycium barbarum
muscles
Natural extracted polysaccharides
plate count
polysaccharides
prediction
survival rate
Trophic transmission
title Effects of three naturally extracted polysaccharides on the growth, antioxidant capacity, and intestinal health during early-stage of juvenile lined seahorses (Hippocampus erectus) via trophic transfer
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