Učinci režima hranidbe na rast, konverziju hrane i velicinsku varijačiju kod soma, silurus glanis

Translated title of the contribution: Effects of feeding regime on growth feed conversion and size variation of Silurus glanis

Máté Havasi, Shivendra Kumar, Zoltán Nagy, Gábor Beliczky, Szabolcs Nagy, Miklós Bercsényi, Dénes Gál

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The present study was carried out to investigate the effects of feeding frequency on the growth, feed utilization, condition and size variation of European catfish. Triplicate groups of fish (45 specimens per treatment) weighing 59.9±12.8 g (mean ± S. D.) were fed a commercial diet (18 MJ DE kg-1). Three different treatments were applied in 3-3 replicates. One group of fish was fed continuously with automatic belt feeders over 12 hrs (C). The second group of fish was fed by hand once a day (1x). The third group got three hand-fed meals per day (3x). In this case the portion was divided into three equal quantities. Feeding levels were 2.5% of actual stock weight in each group. During the 5-week trial, the final body weight (FBW), weight gain (WG), specific growth rate (SGR), feed conversion ratio (FCR), protein efficiency ratio (PER), condition factor (CF) and coefficient of variance CV% were determined. In the first week, remarkable differences in specific growth rate and feed conversion ratio were observed between different treatments, however, all of the differences were ceased at the end of experiment. No significant difference in growth rate, feed conversion ratio, protein efficiency ratio, size variation and condition factor were recorded between different treatments. Overall, our findings conclude that feeding frequency had no significant effect on any of the indices in Silurus glanis. Despite this, three times daily or more frequent feeding could be suggested, as frequent feeding regimes mitigate the harmful effects of rapid water quality changes.

Translated title of the contributionEffects of feeding regime on growth feed conversion and size variation of Silurus glanis
Original languageBosnian
Pages (from-to)142-147
Number of pages6
JournalRibarstvo, Croatian Journal of Fisheries
Volume73
Issue number4
DOIs
Publication statusPublished - Jan 1 2015

Keywords

  • European catfish
  • Feed utilization
  • Feeding frequency
  • Gain

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology
  • Management, Monitoring, Policy and Law

Fingerprint Dive into the research topics of 'Effects of feeding regime on growth feed conversion and size variation of Silurus glanis'. Together they form a unique fingerprint.

  • Cite this