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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Summary: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 
ISSN:0044-8486
DOI:10.1016/j.aquaculture.2024.741920