<abstract xmlns="http://www.w3.org/1999/xhtml"> Alternative proteins from vegetal sources are being studied, because of the high costs and limited resources of fish meal. The aim of this study was to determine the possibility of including cold-pressed rape cake (CPRC) as a partial protein substitute in diets for common carp, Cyprinus carpio L. Common carp fry were stocked into experimental ponds at a density of 30 fish per pond. The effects on growth, feeding efficiency, and fish body composition were studied for four amounts of CPRC (0, 70, 130, 200 g × kg-1). Statistically significant higher final weights (528-530 g) were obtained with fish fed diets with 130 and 200 g × kg-1 CPRC. The fish growth rate was nearly identical in all variants (SGR of 3.3-3.4 % d-1). Similar results were presented in FCR at 1.3, and in PER at 2.2. Our results suggest that it is possible to include up to 200 g × kg-1 of CPRC in diets for two-year old common carp without significant effects on growth, nutritive efficiency, or the proximate composition of the fish.</abstract>

Alternative proteins from vegetal sources are being studied, because of the high costs and limited resources of fish meal. The aim of this study was to determine the possibility of including cold-pressed rape cake (CPRC) as a partial protein substitute in diets for common carp, Cyprinus carpio L. Common carp fry were stocked into experimental ponds at a density of 30 fish per pond. The effects on growth, feeding efficiency, and fish body composition were studied for four amounts of CPRC (0, 70, 130, 200 g × kg-1). Statistically significant higher final weights (528-530 g) were obtained with fish fed diets with 130 and 200 g × kg-1 CPRC. The fish growth rate was nearly identical in all variants (SGR of 3.3-3.4 % d-1). Similar results were presented in FCR at 1.3, and in PER at 2.2. Our results suggest that it is possible to include up to 200 g × kg-1 of CPRC in diets for two-year old common carp without significant effects on growth, nutritive efficiency, or the proximate composition of the fish.

Effects of incorporating in diets cold-pressed rapeseed cake on the growth performance, nutrient utilization, and body composition of common carp (Cyprinus carpio L.)

Department of Inland Fisheries and Aquaculture Institute of Zoology Poznañ University of Life Sciences Wojska Polskiego 71c, 60-625 Poznañ, Poland

Department of Inland Fisheries and Aquaculture Institute of Zoology Poznañ University of Life SciencesWojska Polskiego 71c, 60-625 Poznañ, Poland

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Alternative proteins from vegetal sources are being studied, because of the high costs and limited resources of fish meal. The aim of this study was to...

Effects of incorporating in diets cold-pressed rapeseed cake on the growth performance, nutrient utilization, and body composition of common carp (Cyprinus carpio L.)

Published Online: Jul 29, 2015

Page range: 113 - 120

Received: Jan 29, 2015

Accepted: Apr 17, 2015

DOI: https://doi.org/10.1515/aopf-2015-0013

Keywords
carp fish feed, chemical composition of fish body, cold pressed rapeseed, growth trial, plant inclusion

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects of incorporating in diets cold-pressed rapeseed cake on the growth performance, nutrient utilization, and body composition of common carp (Cyprinus carpio L.)

Published Online: Jul 29, 2015

Page range: 113 - 120

Received: Jan 29, 2015

Accepted: Apr 17, 2015

DOI: https://doi.org/10.1515/aopf-2015-0013

Keywordscarp fish feed, chemical composition of fish body, cold pressed rapeseed, growth trial, plant inclusion

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
carp fish feed, chemical composition of fish body, cold pressed rapeseed, growth trial, plant inclusion