FISH & SHELLFISH IMMUNOLOGY
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2025
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IF 3.9
Shunli Che,Jiawei Chen,Hai Zhang,Weizhen Xu,Yanwei Li,Xueming Dan,Zequan Mo
The mandarin fish ( Siniperca chuatsi ) is a significant freshwater carnivorous species in Chinese aquaculture industry, and its farming scale is continuously expanding. The use of feed in aquaculture has become an increasingly common practice. However, the impacts of substituting artificial feed for live bait on fish's biochemical and immune responses are poorly understood. In this study, two hundred forty mandarin fish (weight: 5.60 ± 0.41 g) were divided into two groups and fed live bait or artificial feed (LB and AF groups) over a 63-day aquaculture experiment. We compared the differences between the two groups in terms of histology, biochemical indicators, gene expression, and bacterial resistance. The results showed that artificial feed promoted enhanced growth, evidenced by higher weight ( p < 0.05). The AF group exhibited higher liver and intestinal somatic indices ( p < 0.05), and histological examination revealed denser cytoplasmic content in liver cells, less fragmentation of renal tubular epithelial cells, and less detachment of intestinal epithelial cells in the AF group. Regarding biochemical indicators and gene expression, the AF group showed better performance in glucose regulation and lipid metabolism. The AF group maintained glucose balance ( p < 0.05) and effectively regulated cholesterol transport ( p < 0.05), promoting lipolysis ( p < 0.05) while inhibiting lipogenesis ( p < 0.05). In contrast, live bait consumption resulted in reduced lipolysis ( p < 0.05), increased lipogenesis ( p < 0.05), impaired endoplasmic reticulum function ( p < 0.05), heightened inflammation ( p < 0.05), and diminished antioxidant capacity ( p < 0.05). Additionally, the LB group exhibited lower survival rates and lysozyme levels during bacterial challenges. Overall, artificial feed was more beneficial for the growth, regulate physiology and enhance disease resistance of S. chuatsi , highlighting its potential to improve fish health and increase aquaculture yield.
研究领域:
水产养殖学
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分子生物学
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免疫学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Animals
·
2025
·Vol. 15
·期 14
·2154
·
IF 2.7
Yuanliang Duan,Qiang Li,Zhipeng Huang,Zhongmeng Zhao,Han Zhao,Yang Feng,Senyue Liu,Chengyan Mou,Jian Zhou,Lu Zhang
This study addresses the challenge of transitioning Siniperca chuatsi (mandarin fish) from live bait (LF) to compound feed (CF) in aquaculture by examining their stress responses during short-distance transportation. The aim was to compare the physiological and biochemical differences between CF-fed and LF-fed fish under transport stress. The results showed that CF-fed fish exhibited higher levels of lysozyme (LZM) activity, malondialdehyde (MDA), triglycerides (TGs), and glucose in multiple tissues (brain, liver, kidneys, muscles, stomach, pyloric caecum, intestines, and blood) compared to LF-fed fish ( p < 0.05), indicating greater energy retention and microbial resistance but weaker antioxidant capacity. The intestine was particularly affected by dietary differences. This study concludes that while CF-fed S. chuatsi demonstrate benefits in energy metabolism and microbial defense, their reduced antioxidant capacity highlights the need for future research to improve CF formulations to enhance oxidative stress resistance. These findings are valuable for optimizing aquaculture practices, ensuring healthier fish production, and supporting sustainable feed development in the industry. The transition from live bait (LF) feeding to compound feed (CF) feeding in aquaculture is of great production significance. In recent decades, cultivation with CF has become a focus for practitioners and researchers dealing with Siniperca chuatsi . This study focused on experimental subjects of S. chuatsi fed with CF and LF, using short-distance transportation as a stimulating factor. For the first time, the differences between S. chuatsi fed with CF and LF were analyzed from the perspective of stress response during transportation. This study found that after transportation stimulation, the activities of LZM and the contents of MDA, TGs, and glucose in the brain, liver, kidneys, muscles, stomach, pyloric caecum, intestines, and blood of S. chuatsi fed with CF were higher compared to S. chuatsi fed with LF ( p < 0.05). Significant differences were observed in the impacts of various diets on the gastrointestinal tract, particularly in the intestine. In summary, this study found that S. chuatsi fed with CF could retain more energy after transport stimulation and exhibited stronger resistance to microbial stress, but they had a weaker antioxidant capacity. Therefore, in future research on CF for S. chuatsi , we need to focus on its ability to enhance antioxidant capacity.
研究领域:
水产养殖
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鱼类生理学
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应激生物学
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动物营养
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生物化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
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