›› 2020, Vol. 32 ›› Issue (7): 1166-1175.DOI: 10.3969/j.issn.1004-1524.2020.07.05

• Animal Science • Previous Articles     Next Articles

Comparative analysis of nutritional components in the muscle of hybrid F1, F2 of (Culter alburnus)(♀)×(Megalobrama amblycephala)(♂) and its parents

JIANG Wenping, JIA Yongyi, LIU Shili, CHENG Shun, CHI Meili, ZHENG Jianbo, LI Fei, GU Zhimin*   

  1. Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Key Laboratory of Freshwater Aquatic Animal Genetic and Breeding of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, China
  • Received:2019-11-12 Online:2020-07-25 Published:2020-07-28

Abstract: In this study, the nutritional components of the back muscles of topmouth culter (Culter alburnus) (Abbr. CA), blunt nose bream (Megalobrama amblycephala) (Abbr. MA), hybrid of (female C. alburnus) × (male M. amblycephala ) (Abbr. HF1) and self-crossing of hybrid of (female C. alburnus) × (male M. amblycephala) (Abbr. HF2) were analyzed, and their nutritional quality were also evaluated and compared. Results showed that moisture contents were significantly lower in HF1 and HF2 than that in MA (P<0.05), while their crude protein contents were significantly higher (P<0.05), and crude fat content in HF1 was significantly higher when compared with that in HF2 and MA (P<0.05). Eighteen kinds of amino acids were found in muscles from four kinds of fish with all of them higher in HF2 than HF1 and their parents, including the total amino acids (TAA), essential amino acids (EAA), delicious amino acids (DAA), ∑EAA/∑TAA, ∑EAA/∑NEAA, amino acids score (AAS), chemical score (CS) and essential amino acid index (EAAI) to some degree (specific). More than twenty kinds of fatty acids were found in muscles from four kinds of fish. The ∑PUFA and ∑EPA+DHA content of HF1 were higher than that in its parents, and were significant higher when compared with that of HF2. Furthermore, ∑SFA:∑MUFA:∑PUFA of HF1 was 1:1.88:1.02, which was closer to the ideal diet of human body than that of its parents and HF2. In general, HF1 had high nutritional value such as low moisture, high fat, high protein, high EPA+DHA and balanced fatty acids composition when compared with parents. In addition, HF2 had low moisture, low fat, high protein and balanced amino acids composition as well as the best edible quality. They all can provide high-quality aquatic protein for different demand of market and have good prospects for development and utilization.

Key words: (Culter alburnus)(♀)×(Megalobrama amblycephala)(♂), muscular nutrition composition, nutritional evaluation

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