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Effect of fasting and stress on postmortem changes in brown trout reared in sea water.

Author(s) : BONNET S., FAUCONNEAU B., DAVID K., FAURE A., LAROCHE M.

Summary

Brown trout (2.9 kg body weight) were subjected to three treatments: feeding, 17 days' fasting and 45 days' fasting. Fish were then separated into four groups. One group was fed during one week with a diet supplemented (10 mg/kg) with a beta-agonist, two other groups received before slaughtering an intraperitoneal injection of either suacron (1 mg carazolol/kg) or epinephrine (2 mg epinephrine/kg). Somatic indices, chemical composition, muscle glycogen content and distribution and muscle fibre size distribution were measured. Postmortem changes in pH, rigor and muscle contraction were also analysed in these groups and consequences for flesh texture measured at seven days were assessed. Results are given.

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Details

  • Original title: Effect of fasting and stress on postmortem changes in brown trout reared in sea water.
  • Record ID : 1997-0949
  • Languages: English
  • Source: Refrigeration and Aquaculture.
  • Publication date: 1996/03/20
  • Document available for consultation in the library of the IIR headquarters only.

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