Intensive rearing of wels (Silurus glanis) fed with plant protein based feed.
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2010, Vol 3, Issue 5
Abstract
In order to replace expensive fish meal, plant based feeds were compared to traditional wels (Silurus glanis) feed in a 60 days experiment. Three types of feed were applied squealer feed (S), squaeler feed combined with forage fish (S+F) and standard wels feed (W). The feed conversion ratio was 0.88±0.21 at the W group, 1.74±0.21 at the S and 1.48±0.23 in case of S+F group. Specific growth rate was higher at wels feed (2.34%), than in the case of the squealer feed (1.77%) or even in the case of forage fish addition (1.95%). The slaughter loss was the least at the fish fed with forage fish in addition (34.6±2.0%). The size of the liver (2.8±0.32%) and the fat content of the viscera (4.1±1.0%) was significantly higher at W group than those of the other treatments.
Authors and Affiliations
Máté Havasi, Anita Gorzás, Péter Lévai, János Merth, Miklós Bercsényi
Keywords
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