Page 146 - 《水产学报》2025年第5期

王立改，等 水产学报, 2025, 49(5): 059612

Effects of chilled trash fish and formulated feed on growth performance,
feed utilization and muscle nutrient quality of yellow drum (Nibea albiflora)

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WANG Ligai , YAO Gaohua , MA Shipeng , LI Haidong , CHEN Ruiyi ,
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TAN Peng , HU Weihua , XU Dongdong 1*
1. Zhejiang Provincial Key Lab of Mariculture & Enhancement,
Zhejiang Marine Fisheries Resarch Institute, Zhoushan 316000, China;
2. Zhejiang Fisheries Techonology Extension Center, Hangzhou 310012, China;
3. College of Fisheries, Zhejiang Ocean University, Zhoushan 316000, China
Abstract: Nibea albiflora is an important cage-cultured fish in the East China Sea. An 8-week feeding trial was conducted to
evaluate the effects of a special formulated feed and chilled trash fish on the growth performance, feed utilization, and muscle
nutrient quality of juvenile N. albiflora. A total of 540 healthy yellow drum with an initial body weight of (34.60±0.05) g were
randomly divided into three groups, with three replicates per group. The groups were fed either special formulated feed, com-
mercial formulated feed, or chilled trash fish throughout the trial. Results indicated that the weight gain rate (WGR), specific
growth rate (SGR), and protein efficiency rate (PER) of fish fed special formulated feed were 211.52%, 2.03%/d, and 160.92%,
respectively. These values were significantly higher than those of fish fed the chilled trash fish diet (149.97%, 1,64%/d,
67.04%) and the commercial formulated diet (187.33%, 1.88%/d, 144.37%) (P<0.05). The feed conversion rate (FCR) of fish
fed chilled trash fish was significantly higher than that of fish fed formulated feed (P<0.05). Fish fed formulated feed exhibited
significantly higher hepatosomatic index (HSI) and viscerosomatic index (VSI) compared to those fed chilled trash fish
(P<0.05). The muscle lipid content of fish fed the special formulated feed was significantly higher than that of fish fed commer-
cial formulated feed and chilled trash fish, while the muscle moisture content was significantly lower (P<0.05). The total amino
acid (TAA), essential amino acid (EAA), arachidonic acid (ARA), and docosahexaenoic acid (DHA) contents of fish fed chilled
trash fish were significantly higher than that of fish fed formulated feed (P<0.05). Histological staining of muscle tissue with
H.E revealed that muscle fibers of fish fed formulated feed and chilled trash fish were irregular polygons with clear texture and
tight arrangement. However, the muscle fiber density of fish fed chilled trash fish was significantly higher than that of fish fed
formulated feed (P<0.05). In conclusion, the growth performance and feed utilization of fish fed the special formulated feed
were superior to that of fish fed chilled trash fish. However, the muscle amino acid and long-chain polyunsaturated fatty acid
(LC-PUFA) contents of fish fed chilled trash fish were higher than that of fish fed the special formulated feed. This study
provides a theoretical basis for the efficient and healthy culture of N. albiflora and the optimization of its formulated feed.
Key words: Nibea albiflora; special formulated feed; chilled trash fish; growth performance; muscle nutrient quality
Corresponding author: XU Dongdong. E-mail: xudong0580@163.com

Funding projects: Natural Science Foundation Project of Zhejiang Province (LY24C190004); Zhejiang Province “Three Agri-
culture Nine Side” Science and Technology Cooperation Program Project (2023SNJF078); Zhejiang Provincial Outstanding
Youth Fund (LR21C190001); National Natural Science Foundation of China (31972785)

中国水产学会主办 sponsored by China Society of Fisheries https://www.china-fishery.cn
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