Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Zakęś Z. , Szkudlarek M. , Woźniak M. , Demska-Zakęś K. , Czerniak S. 2003. EFFECTS OF FEEDING REGIMES ON GROWTH, WITHIN-GROUP WEIGHT VARIABILITY, AND CHEMICAL COMPOSITION OF THE JUVENILE ZANDER, Sander lucioperca (L.), BODY, EJPAU 6(1), #04.
Available Online: http://www.ejpau.media.pl/volume6/issue1/fisheries/abs-04.html

ABSTRACT

The study was aimed at determining effects of feed ration on growth, within-group variability, and chemical composition of the body of juvenile zander (c. 25 g initial individual weight) grown out in a recirculation system for 42 days. The fish were fed a commercial pelleted trout feed offered at three rations (Group L: 1.2% of stock biomass; Group M: 1.6% of stock biomass; and Group H: 2.0% of stock biomass). Each experimental treatment involved two replicates. The feed rations used were found to significantly (p < 0.01) affect fish growth: the mean body weight on termination of the experiment was 47.9, 60.3, and 69.4 g in Group L, M, and H, respectively. Statistically significant differences were revealed also in SGR and fish condition. The most favourable food conversion ratio (FCR) and protein efficiency ratio (PER) were found in Group M, the between-group differences being significant as well (p < 0.05). The feeding rations applied did not produce a significant effect (p

Key words: zander (Sander lucioperca), feed ration, growth, within-group variability of body weight, body chemical composition..

---