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Gymnorhynchus gigas in Lepidopus caudatus (Actinopterygii: Perciformes: Trichiuridae): prevalence and related effects on fish quality

Author

Listed:
  • Filippo Giarratana

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Daniele Muscolino

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Chiara Beninati

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Graziella Ziino

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Alessandro Giuffrida

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Martino Trapani

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

  • Antonio Panebianco

    (Department of Veterinary Science, University of Messina, Polo Universitario dell'Annunziata, Messina, Italy)

Abstract

We evaluated the effects of Gymnorhynchus gigas on the freshness and hygienic quality of Lepidopus caudatus. Total Volatile Basic Nitrogen (TVB-N), Trimethylamine Nitrogen (TMA-N), as well as Specific Spoilage Organisms (SSOs) are the most important freshness indicators in fish. Our study was carried-out on 65 specimens of L. caudatus kept in ice and stored at 2°C for different period of time. The microbiological charge of SSOs recovered on a portion of parasitised muscles (MP) was compared with those recovered on portions of parasite-free muscles (M). The contents of TVB-N and TMA-N on MP, M, and G. gigas larva/ae were measured using the Conway microdiffusion method. High prevalence (72.31%) of G. gigas in the specimens of L. caudatus from the Mediterranean sea was observed. No statistically significant differences (P < 0.05) between M and MP were found during storage. However, massive infestation of G. gigas on the muscle of the silver scabbardfish could negatively influence TVB-N values, without compromising the sensorial characteristic of fish.

Suggested Citation

  • Filippo Giarratana & Daniele Muscolino & Chiara Beninati & Graziella Ziino & Alessandro Giuffrida & Martino Trapani & Antonio Panebianco, 2014. "Gymnorhynchus gigas in Lepidopus caudatus (Actinopterygii: Perciformes: Trichiuridae): prevalence and related effects on fish quality," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 32(4), pages 320-325.
    • Handle: RePEc:caa:jnlcjf:v:32:y:2014:i:4:id:330-2013-cjfs
    DOI: 10.17221/330/2013-CJFS
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