The effect of shelter on welfare of juvenile Atlantic salmon Salmo salar reared under a feed restriction regimen
This study investigated whether shelter (presence or absence) affected the frequency of fin damage in Atlantic salmon Salmo salar exposed to feed restrictions (0·73 or 0·33% of body mass day −1 ). The presence of shelter had a positive effect on the pectoral fins at both feed ration levels and on th...
| Published in: | Journal of Fish Biology |
|---|---|
| Main Authors: | , |
| Other Authors: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
2014
|
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/jfb.12443 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfb.12443 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfb.12443 |
| Summary: | This study investigated whether shelter (presence or absence) affected the frequency of fin damage in Atlantic salmon Salmo salar exposed to feed restrictions (0·73 or 0·33% of body mass day −1 ). The presence of shelter had a positive effect on the pectoral fins at both feed ration levels and on the dorsal fin at the higher ration level but it had a negative effect on survival. The reduced feed rations resulted in fish of the same size and nutritional status as wild fish. The provision of shelter has potential to mitigate the negative effects of feed restrictions on fin quality, but the optimal shelter design requires some additional investigation. |
|---|