<abstract xmlns="http://www.w3.org/1999/xhtml"><p> A broodstock was created with individuals from the diminishing natural sterlet, Acipenser ruthenus L., population in the upper area of the Dniester basin. Selects and spawners were reared in flow-through tanks with natural thermal regimes. This is the first time artificial reproduction has been performed with this species, followed by incubation and larval rearing. The experimental rearing was conducted in tanks in a recirculating aquaculture system, in which the basic environmental quality parameters were controlled, including water temperature, oxygen saturation, and levels of ammonia and nitrite. During rearing, growth rates and proximate composition of larvae and then juvenile were examined. It was confirmed that during the period of endogenous feeding there was a two-fold decrease in the contents of protein and lipids in the bodies of the larvae. The effects of feeding the sterlet juvenile two different types of commercial feed were compared, and it was confirmed that the feed had a significant impact on sterlet growth rates. The mean daily increase in the body weight of sterlet juvenile fed Skretting feed was 1.91%, while that in the group fed Aller feed was 0.97%. Additionally, the juvenile from the former group was characterized by higher contents of protein and lipids in both the liver and muscle and the fatty acid profile was more varied.</p></abstract>

A broodstock was created with individuals from the diminishing natural sterlet, Acipenser ruthenus L., population in the upper area of the Dniester basin. Selects and spawners were reared in flow-through tanks with natural thermal regimes. This is the first time artificial reproduction has been performed with this species, followed by incubation and larval rearing. The experimental rearing was conducted in tanks in a recirculating aquaculture system, in which the basic environmental quality parameters were controlled, including water temperature, oxygen saturation, and levels of ammonia and nitrite. During rearing, growth rates and proximate composition of larvae and then juvenile were examined. It was confirmed that during the period of endogenous feeding there was a two-fold decrease in the contents of protein and lipids in the bodies of the larvae. The effects of feeding the sterlet juvenile two different types of commercial feed were compared, and it was confirmed that the feed had a significant impact on sterlet growth rates. The mean daily increase in the body weight of sterlet juvenile fed Skretting feed was 1.91%, while that in the group fed Aller feed was 0.97%. Additionally, the juvenile from the former group was characterized by higher contents of protein and lipids in both the liver and muscle and the fatty acid profile was more varied.

Characterization of growth and biochemical composition of sterlet, Acipenser ruthenus L., juveniles from the Dniester population reared in RAS

Department of Biochemistry and Biotechnology Chernivtsi National University, Ukraine

Department of Ichthyology Inland Fisheries Institute in Olsztyn, Poland

Fisheries & Aquatic Life

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

A broodstock was created with individuals from the diminishing natural sterlet, Acipenser ruthenus L., population in the upper area of the Dniester basin....

Characterization of growth and biochemical composition of sterlet, Acipenser ruthenus L., juveniles from the Dniester population reared in RAS

Publié en ligne: 03 mars 2015

Pages: 249 - 256

Reçu: 19 sept. 2014

Accepté: 25 oct. 2014

DOI: https://doi.org/10.2478/aopf-2014-0026

Mots clés
Acipenseridae, intensive rearing, growth rate, biochemical composition

© Archives of Polish Fisheries

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

Characterization of growth and biochemical composition of sterlet, Acipenser ruthenus L., juveniles from the Dniester population reared in RAS

Publié en ligne: 03 mars 2015

Pages: 249 - 256

Reçu: 19 sept. 2014

Accepté: 25 oct. 2014

DOI: https://doi.org/10.2478/aopf-2014-0026

Mots clésAcipenseridae, intensive rearing, growth rate, biochemical composition

© Archives of Polish Fisheries

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

Mots clés
Acipenseridae, intensive rearing, growth rate, biochemical composition