SHORT COMMUNICATION

Effects of Pond Mono-Culture Pattern with Expanded Feed on Morphological Indices, Muscular Nutrient Composition and Quality Characteristic of Bighead Carp (Aristichthys nobilis)

  • SUN Shengming ,
  • GE Xianping ,
  • SU Yanli ,
  • YU Han
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  • 1. Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China;
    2. Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China;
    3. Wuxi Fishery College Nanjing Agricultural University, Wuxi 214081, China

Received date: 2019-10-01

  Online published: 2020-05-15

Abstract

In order to synthetically investigate the effects of pond mono-culture pattern with expanded feed on morphological indices, muscular nutrient composition, texture characteristics, heavy metals content, and amino acid and fatty acid contents of bighead carp (Aristichthys nobilis), twelve individuals in each group were randomly selected, which bighead carp captured in Taihu Lake (wild group), bighead carp fed artificially formulated feed (pond group) and the bighead carp mainly fed zooplankter (cage group). The results showed that the condition factor (CF), hepatosomatic index (HSI) and viscerosomatic index (VSI) of pond group were significantly higher than those of wild group (P<0.05); the content of crude fat in muscle of wild group and cage group was significantly lower than that of pond group (P<0.05), while the content of crude protein in muscle had no significant difference among groups (P>0.05); the harness and resilience in muscle of wild group and cage group were significantly higher than those of pond group (P<0.05), while the springiness, cohesiveness and gumminess in muscle had no significant difference among groups (P>0.05); the contents of cadmium (Cd) in muscle of wild group and cage group was significantly higher than that of pond group (P<0.05), on the contrary, copper (Cu) content was significantly lower than that of pond group (P<0.05); the contents of total amino acid and total flavor amino acid in muscle of cage group and wild group was significantly higher than those of pond group (P<0.05), and the amino acid score (AAS) and chemical score (CS) of each amino acid and essential amino acid index (EAAI) in muscle of cage group and wild group were significantly higher than those of pond group (P<0.05); the contents of oleic acid, eicosapentanoic (EPA) and docosahexaenoic acid (DHA) of cage group and wild group were significantly lower than those of pond group (P<0.05), and the others had no significant difference among groups (P>0.05). These results indicate that the bighead carp in pond group have characteristics of higher content of fat and higher contents of EPA and DHA, but lower muscular harness and total flavor amino acid content.

Cite this article

SUN Shengming , GE Xianping , SU Yanli , YU Han . Effects of Pond Mono-Culture Pattern with Expanded Feed on Morphological Indices, Muscular Nutrient Composition and Quality Characteristic of Bighead Carp (Aristichthys nobilis)[J]. Chinese Journal of Animal Nutrition, 2020 , 32(5) : 2379 -2386 . DOI: 10.3969/j.issn.1006-267x.2020.05.047

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