Fishery Modernization >

2019 , Vol. 46 >Issue 1: 60 - 66

DOI: https://doi.org/10.3969/j.issn.1007-9580.2019.01.010

Study on physiological-biochemical changes of Ictalurus punctatus anesthetized by eugenol at different waterless preservation temperatures#br#

  • BAI Chan1 ,
  • XIONG Guangquan1 ,
  • HUANG Min2 ,
  • QU Chang1 ,
  • LIAO Tao1 ,
  • ZHANG Jinmu1
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  • (1 Institute of Agro-Products Processing and Nuclear-Agricultural Technology, Hubei Academy of Agricultural Sciences/Hubei Engineering Research Center for Farm Products Irradiation, Wuhan 430064, Hubei, China;
    2 Irradiation Preservation Technology Key Laboratory of Sichuan Province, Sichuan Institute of Atomic Energy, Chengdu 610101, Sichuan, China)

Online published: 2019-05-13

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Abstract

In order to seek for the best conditions for waterless preservation of Ictalurus punctatus anesthetized by eugenol, the survival rate and changes on physiological-biochemical parameters of Ictalurus punctatus after preserved for 5h at different temperatures (0℃, 2℃, 4℃, 6℃ and 8℃) and 24h after recovery were studied. The result indicated that the optimum temperature for 5h waterless preservation of Ictalurus punctatus anesthetized by eugenol was 2℃-6℃, at which the survival rate 24h after recovery could be ≥ 80%; after preserved for 5h, GPT and GOT in blood were significantly higher than those before preservation (P<0.05) , and 24h after recovery, at 2℃, GPT and GOT could respectively recovered to 12.52 U/L and 16.13 U/L ; the content of CREA and BUN increased dramatically (P<0.05), especially at 6℃; total fish protein, crude fat, hardness and chewiness were on a downtrend (P<0.05). The study suggested that waterless preservation at 2 ℃had less effect on physiological-biochemical parameters of fish.

Key words： Ictalurus punctatus; eugenol; temperature; preservation; biochemical parameters

Cite this article

BAI Chan1 , XIONG Guangquan1 , HUANG Min2 , QU Chang1 , LIAO Tao1 , ZHANG Jinmu1 . Study on physiological-biochemical changes of Ictalurus punctatus anesthetized by eugenol at different waterless preservation temperatures#br#[J]. Fishery Modernization, 2019 , 46(1) : 60 -66 . DOI: 10.3969/j.issn.1007-9580.2019.01.010

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