Can black soldier fly meal in diets improve gut microbiota diversity, nutrient digestibility, and growth response of marine fish? A study on red sea bream Pagrus major

IF 1.4 4区 农林科学 Q3 FISHERIES
Ozan Oktay, Taekyoung Seong, Naoki Kabeya, Shinsuke Morioka, Chia-Ming Liu, Tetsuya Kobayashi, Masami Shimoda, Shuichi Satoh, Yutaka Haga
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Abstract

The present study assessed the growth and fish performance of juvenile red sea bream fed four isonitrogenous (46–48%) and isolipidic (15%) diets containing 45% fishmeal (control) and 15%, 30%, and 45% defatted black soldier fly (BSF) Hermetia illucens meal for 67 days. Subsequent analyses showed that there were no significant differences in the growth parameters, nutrient digestibility, and body composition of fish among all treatments. Although no significant difference was observed in fish growth, low growth was observed when the fish meal was totally replaced with the BSF meal. Higher alpha diversity of intestinal microbiota was observed in fish fed the BSF meal-based diet compared to that of the control. In the treatment groups fed the BSF meal, elevations in the presence of microbial genera that produce digestive enzymes, such as chitinase (Nocardia, Vibrio, Paenibacillus, Photobacterium), lipase (Paenibacillus, Photobacterium), and trypsin-like serine protease (Bacillus, Paenibacillus) and vitamin B group [biotin (Vibrio, Paenibacillus, Bacillus), cobalamin (Pseudomonas, Bacillus, Propionibacterium), and pyridoxin (Photobacterium)], were observed. We also found an increasing trend of bacteria producing antioxidative enzymes, such as superoxide dismutase and catalase (Nocardia, Pseudomonas, Photobacterium) in the BSF groups. These results suggested that the BSF meal could replace 67% of fishmeal without causing a negative impact on growth and lead to beneficial effects on the intestinal microbiota of the red sea bream.

Abstract Image

日粮中的黑兵蝇粉能否改善海水鱼的肠道微生物群多样性、营养消化率和生长反应?一项关于真鲷的研究
本研究评估了红鲷幼鱼的生长和鱼体性能,喂食含有45%鱼粉(对照组)和15%、30%和45%脱脂黑兵蝇(BSF)Hermetia illucens粉的四种等氮(46-48%)和离脂(15%)日粮,共67天。随后的分析表明,在所有处理中,鱼类的生长参数、营养消化率和身体成分均无显著差异。虽然在鱼的生长方面没有观察到明显差异,但当鱼粉完全被 BSF 粉替代时,鱼的生长率较低。与对照组相比,饲喂以 BSF 粉为主食的鱼类肠道微生物群的α-多样性更高。在喂食 BSF 粉的处理组中,产生消化酶的微生物属,如几丁质酶(诺卡氏菌、弧菌、担子菌、光杆菌)、脂肪酶(担子菌、光杆菌)和胰蛋白酶样丝氨酸蛋白的存在率升高、和胰蛋白酶样丝氨酸蛋白酶(芽孢杆菌、拟杆菌)以及维生素 B 组[生物素(弧菌、拟杆菌、芽孢杆菌)、钴胺素(假单胞菌、芽孢杆菌、丙酸杆菌)和吡哆醇(光杆菌)]。我们还发现,在 BSF 组中,产生超氧化物歧化酶和过氧化氢酶等抗氧化酶的细菌数量呈上升趋势(诺卡氏菌、假单胞菌、光杆菌)。这些结果表明,BSF 粉可以替代 67% 的鱼粉,而不会对红鲷鱼的生长造成负面影响,并对红鲷鱼的肠道微生物群产生有益影响。
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来源期刊
Fisheries Science
Fisheries Science 农林科学-渔业
CiteScore
3.80
自引率
5.30%
发文量
0
审稿时长
12-24 weeks
期刊介绍: Fisheries Science is the official journal of the Japanese Society of Fisheries Science, which was established in 1932. Recognized as a leading journal in its field, Fisheries Science is respected internationally for the publication of basic and applied research articles in a broad range of subject areas relevant to fisheries science. All articles are peer-reviewed by at least two experts in the field of the submitted paper. Published six times per year, Fisheries Science includes about 120 articles per volume. It has a rich history of publishing quality papers in fisheries, biology, aquaculture, environment, chemistry and biochemistry, food science and technology, and Social Science.
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