<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Vendace, <italic>Coregonus albula</italic> L., was reared to commercial size in a recirculating system. Three different feed rations were applied during the ten-month-long experiment. The feed rations impacted fish growth rates, and fish in the different groups achieved body weights of 26.6 g to 57.5 g. The final survival in all groups was similar from 44.3% among the fish fed the smallest feed ration to 53.2% in the group receiving the largest feed ration. No differences were noted in the share of viscera, peritoneal fat, or in the hepatosomatic indexes, but there were differences in the gonadosomatic indexes. After thermal stimulation, only males achieved sexual maturity. The number of mature fish was similar in all groups and ranged from 17.8 to 21.3% of all fish. The results of the present study indicated that vendace can achieve commercial size in an intensive rearing period of ten months in RAS.</p></abstract>

Vendace, Coregonus albula L., was reared to commercial size in a recirculating system. Three different feed rations were applied during the ten-month-long experiment. The feed rations impacted fish growth rates, and fish in the different groups achieved body weights of 26.6 g to 57.5 g. The final survival in all groups was similar from 44.3% among the fish fed the smallest feed ration to 53.2% in the group receiving the largest feed ration. No differences were noted in the share of viscera, peritoneal fat, or in the hepatosomatic indexes, but there were differences in the gonadosomatic indexes. After thermal stimulation, only males achieved sexual maturity. The number of mature fish was similar in all groups and ranged from 17.8 to 21.3% of all fish. The results of the present study indicated that vendace can achieve commercial size in an intensive rearing period of ten months in RAS.

Impact of Feed Rations on Growth, Selected Body Parameters and Maturation of Vendace, <italic>Coregonus Albula</italic> L., Reared in RAS

Department of Sturgeon Fish Breeding, Inland Fisheries Institute in Olsztyn, 11-610 Pozezdrze, Poland

Fisheries & Aquatic Life

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

Impact of Feed Rations on Growth, Selected Body Parameters and Maturation of Vendace,  L., Reared in RAS

Vendace, Coregonus albula L., was reared to commercial size in a recirculating system. Three different feed rations were applied during the ten-month-long...

Impact of Feed Rations on Growth, Selected Body Parameters and Maturation of Vendace, Coregonus Albula L., Reared in RAS

Article Category: Research Paper

Published Online: Jul 15, 2014

Page range: 145 - 150

Received: Jul 26, 2013

Accepted: Feb 26, 2014

DOI: https://doi.org/10.2478/aopf-2014-0014

Keywords
feed ration, maturation, RAS, vendace, growth

© 2014 Archives of Polish Fisheries

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

Impact of Feed Rations on Growth, Selected Body Parameters and Maturation of Vendace, Coregonus Albula L., Reared in RAS

Article Category: Research Paper

Published Online: Jul 15, 2014

Page range: 145 - 150

Received: Jul 26, 2013

Accepted: Feb 26, 2014

DOI: https://doi.org/10.2478/aopf-2014-0014

Keywordsfeed ration, maturation, RAS, vendace, growth

© 2014 Archives of Polish Fisheries

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

Keywords
feed ration, maturation, RAS, vendace, growth