Effect of Low-Proportion Replacement of Dietary Fishmeal with Neanthes japonica Meal on Growth Performance, Body Composition, Muscle Texture, Serum Biochemistry, Digestive Enzymes and Gene Expression in Juvenile Tiger Puffer Takifugu rubripes
文献类型： 外文期刊
作者： Gao, Qingyan 1 ; Fan, Yuhan 2 ; Zhang, Renxiao 2 ; Fang, Jinghui 2 ; Ma, Qiang 2 ; Wei, Yuliang 2 ; Liang, Mengqing 2 ; Liu, Feng 3 ; Xu, Houguo 2 ;
作者机构： 1.Dalian Ocean Univ, Coll Fisheries & Life Sci, Dalian 116023, Peoples R China
2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Peoples R China
3.China Agr Univ, Yantai Inst, Yantai 264670, Peoples R China
关键词： feed ingredient; functional feed; sustainable aquaculture; cyclic utilization; marine fish
期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）
ISSN：
年卷期： 2024 年 9 卷 9 期
页码：
收录情况： SCI
摘要： The polychaeta Neanthes japonica is a common by-product in mariculture ponds. It is rich in essential nutrients, but has not been well-explored. Therefore, this 56-day experiment investigated the effects of substituting N. japonica meal for dietary fishmeal on juvenile tiger puffer (15.49 +/- 0.02 g, n = 450 fish). The control diet (CON) contained 40% fishmeal. Freeze-dried N. japonica meal (FNM) was supplemented into CON at the levels of 3% (FNM3), 6% (FNM6), and 9% (FNM9), replacing fishmeal. The fifth diet contained 6% oven-dried N. japonica meal (ONM6), replacing fishmeal. The results indicated that no significant difference was observed in growth, feed efficiency, and somatic index among all the treatment groups. The feed intake of the FNM6 group was significantly higher compared to CON. No significant difference was detected in fish proximate composition, as well as the fatty acid composition, amino acid composition, and muscle texture. The supplementation of N. japonica meal decreased the activities of intestinal lipase and alpha-amylase. The addition of freeze-dried N. japonica meal significantly up-regulated the expression of the intestinal amino-glycine transporter pat1. It was concluded that adding 9% N. japonica meal to the feed had no significant effect on the growth performance and body composition of juvenile tiger puffer.
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