Stocking density limits for post-smolt Atlantic salmon (Salmo salar L.) with emphasis on production performance and welfare

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• 作者：S. Calabrese^a ; ^c ; ^{sara.calabrese@marineharvest.com} ; T.O. Nilsen^b ; J. Kolarevic^f ; L.O.E. Ebbesson^b ; C. Pedrosa^b ; S. Fivelstad^e ; C. Hosfeld^e ; S.O. Stefansson^a ; B.F. Terjesen^f ; H. Takle^f ; ^c ; C.I.M. Martins^c ; H. Sveier^g ; F. Mathisen^h ; A.K. Imsland^a ; ^d ; S.O. Handeland^b ; ^e
• 关键词：Semi-closed containment systems ; Growth ; Stress response ; Fish welfare
• 刊名：Aquaculture
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：468
• 期：part_P1
• 页码：363-370
• 全文大小：940 K
• 卷排序：468

文摘

The stocking density limit for post-smolt Atlantic salmon in flow-through seawater systems was assessed. Primary, secondary and tertiary stress responses were observed in the highest stocking density (125 kg m-3) after 8 weeks. Specific growth rate was reduced by 42% in the 125 kg m-3 treatment compared to the 100 kg m-3 treatment. Increasing stocking density had a negative effect on feed utilization (FCR). Negative effects on external welfare, fin damage and cataracts, were observed in stocking densities of 100 kg m-3 and above.