Journal
AQUACULTURE
Volume 550, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.aquaculture.2021.737839
Keywords
Salmo salar; Atlantic salmon; Behavior; Feeding activity; Real-time monitoring system; Aquaculture condition; Feed management
Categories
Funding
- Universidad de Los Lagos (Chile)
- Universidad de Los Lagos [ANID 79-INES]
- FONDECYT [1190857]
- FONDAP IDEAL [15150003]
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The feeding activity of farmed Salmo salar is influenced by environmental variability, ration size, and UV radiation.
Farmed fish are affected by environmental variability and farming practices, such as farming density, feed composition and feeding regime. We developed four feeding activity indices to assess how environmental variability, ration size and feeding time lags affect the feeding activity of farmed Salmo salar. We used a real-time video monitoring system to record eight 1800-m3 cages between November 2017 and August 2018. Each cage contained approximately 55,000 S. salar post-smolts (initial weight of 1253 g +/- 195). We found that ration size and UV radiation positively and negatively affected feeding activity indices, respectively.
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