Reduction of early sexual maturation in male S0 Atlantic salmon (Salmo salar L.) by dietary supplementation of tetradecylthioacetic acid (TTA)
- Arge, Regin
- Thomassen, Magny S.
- Berge, Rolf K.
- Zambonino-Infante, Jose-Luis
- Terjesen, Bendik Fyhn
- Oehme, Maike
- Rørvik, Kjell-Arne
DOIAbstract
International audienceEffects of dietary tetradecylthioacetic fatty acid (TTA) on muscle fat, development of gonads and early sexual maturation in S0 Atlantic salmon during the first year in sea were investigated. TTA (0.5% w/w) was added to the feeds for 8 weeks in the spring. In May, at the end of the TTA-feeding period, the fish in the TTA group had significantly (P<0.05) less fat (10.1%) stored in muscle compared with the control group (10.8%). In September, mean male gonadosomatic index (GSI) in maturing fish in the TTA group was found to be lower compared with the maturing fish in the control group (P=0.05). On the basis of GSI values, male sexual maturation in September was 10.0% vs. 14.4% for the TTA and the control group respective...
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