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- Title
Efecto de reducir la frecuencia de alimentación en la supervivencia, crecimiento, conversión y conducta alimenticia en juveniles de salmón del Atlántico Salmo salar (Linnaeus, 1758): experiencia a nivel productivo.
- Authors
Flores, Héctor; Vergara, Alex
- Abstract
In Chile, most salmon-farming companies feed fish in the parr phase 24 rations/day. However, food can remain in fish stomachs for around four or five hours. Using productive procedures and protocols, this study evaluates less frequent food rations and how they affect the survival, growth, conversion, and feeding behavior of the fish. The study was conducted over four months under normal commercial production conditions, using approximately 1,200,000 fish of 0.17 g each. There were two treatments: the control, which received 24 rations/day, and the assay, which received 12 rations/day at the onset of the study and 4 rations/day at the end of this. Five tanks, each 18 m3, were used for each treatment. The lower feeding frequency did not affect the survival of Salmo salar. The fish in the assay obtained greater growth and had better food conversion rates. Less food was deposited on the bottom of the assay tanks, and the fish were observed to have better appetites.
- Subjects
SALMON farming; FISH farming; FISH feeds; ATLANTIC salmon; AQUACULTURE
- Publication
Latin American Journal of Aquatic Research, 2012, Vol 40, Issue S3, p536
- ISSN
0718-560X
- Publication type
Article
- DOI
10.3856/vol40-issue3-fulltext-3