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  • 标题:Researches considering the effect of the gradual insertion of fodder in alimentation for the growth rhythm of Siberian sturgeon larvae (Acipenser baerii – Brandt, 1869) reared in superintensive system
  • 本地全文:下载
  • 作者:Daniel OPREA ; Lucian OPREA
  • 期刊名称:Annals of the University Dunarea de Jos of Galati. Fascicle VI : Food Technology
  • 印刷版ISSN:1843-5157
  • 电子版ISSN:2068-259X
  • 出版年度:2010
  • 卷号:34
  • 期号:1
  • 页码:47-50
  • 出版社:Galati University Press
  • 摘要:The experiment was made inside of private sturgeon rearing farm S.C. "Beluga Farm Group" S.R.L. from Calarasi County. The rearing system is flow-through and is emplaced into an enclosure as hall type. Sturgeon larvae were reared in spun glass troughs of a 0.167 m3capacity. Experiment duration was 20 days. Biological material, Siberian sturgeon larvae (Acipenser baerii ¨C Brandt, 1869), was gained by artificial breeding of breeders imported from Germany. The experiment was going off with two variants and three replications each. The rearing density was the same in both experimental variants, 500 ex/tank respectively. The diet of larvae from each variant was different as follows: in variant I, the larvae were fed exclusively on live diet represented by Tubifex species; in variant II, the larvae were gradually carried over from a diet consisting of Tubifex species to a diet represented only by Perla Larva fodder with a protean content of 62.0 %. On both experimental variants, fed delivery was achieved in the same way, namely the same number of daily intakes, dispensed at the same time. At the end of the experiment, the results were as follows: in variant I, the survival rate was 75 % and the final average body mass of larvae 2.69 g/ex, in variant II, the survival rate was 66 % and the final average body mass 2.38 g/ex
  • 关键词:flow-through system; Acipenser baerii; larvae; feeding
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