INFLUENCE OF FEEDING LEVEL ON THE GROWTH OF STERLET (Acipenser ruthenus Linnaeus, 1758) IN RECIRCULATING AQUACULTURE SYSTEM

被引：0

作者：

Sion , C. ^{[1
]}

Oprea, L. ^{[1
]}

Cristea, V. ^{[1
]}

Patriche, N. ^{[1
]}

Bacanu, M. G. ^{[1
]}

Calin, P. G. ^{[1
]}

Bocioc, E. ^{[1
]}

Enache, I. ^{[1
]}

Ion , S. ^{[1
]}

机构：

[1] Univ Dunarea de Jos, Galati 800008, Romania

来源：

JOURNAL OF ENVIRONMENTAL PROTECTION AND ECOLOGY | 2011年 / 12卷 / 03期

关键词：

sturgeon; pellets; RAS; feeding level;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The paper is presenting aspects regarding the influence of feeding level on the breeding of sterlet in a recirculating aquaculture system (RAS). The experiment took place over 30 days, in 4 pilot breeding units of aquaria type of 300 1 in volume. Two kinds of foddering level variants were compared, with repetition: with 6 g/kg metabolic weight (1.1% from total biomas) and 12 g/kg metabolic weight (2.2% from total biomas), respectively. The stocking density was of 14 fish/unit. The parameters of fish breeding showed that changing the quantity of fodder, the fish growing was positively influenced. This experiment showed that Acipenser ruthenus is a sturgeon with a weaker growth rate than other strugeon. However, it is still possible to obtain an increase of fish biomass, between 1.2-1.5 kg/m(3), using different quantity of pellets with more than 40% crude protein.

引用

页码：1089 / 1094

页数：6

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