Compensatory growth and reduced maturation in second sea winter farmed Atlantic salmon following starvation in February and March |
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Authors: | E Reimers A G Kjørrefjord S M Stavøstrand |
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Institution: | Svanoy Foundation, 6965 Svanøybukt, Norway |
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Abstract: | Starvation of second sea winter farmed Atlantic salmon through February and March reduced body weight by 0.10% day?1 or 6.0% during the starvation period, whereas fed fish increased body weight by 0.10 day?1 or 5.9%. When fed again during 41 days in April and May, the starved group increased weight by 22.7% (0.55% day?1) compared with a 11.4% (0.28% day?1) gain in the unrestricted control. Ultrasound determination of sex and maturity in late May showed that the incidence of maturation was reduced by 48% among females and 32% among males in the starved group, compared with the unrestricted group. |
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Keywords: | salmon Salmo solar L starvation maturation compensatory growth |
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