Red macroalgae Pyropia columbina and Gracilaria chilensis: sustainable feed additive in the Salmo salar diet and the evaluation of potential antiviral activity against infectious salmon anemia virus
Author
dc.contributor.author
Lozano Muñoz, Ivonne
Author
dc.contributor.author
Wacyk González, Jurij
Author
dc.contributor.author
Carrasco, Jaime
Author
dc.contributor.author
Cortez San Martín, Marcelo
Admission date
dc.date.accessioned
2016-06-30T22:31:17Z
Available date
dc.date.available
2016-06-30T22:31:17Z
Publication date
dc.date.issued
2016
Cita de ítem
dc.identifier.citation
J Appl Phycol (2016) 28:1343–1351
en_US
Identifier
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0921-8971
Identifier
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DOI: 10.1007/s10811-015-0648-8
Identifier
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https://repositorio.uchile.cl/handle/2250/139325
General note
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Artículo de publicación ISI
en_US
Abstract
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Red macroalgae (Phylum Rhodophyta) are considered
to be an important source of biologically active metabolites;
their use as functional feed ingredients in fish diets can
increase disease resistance and animal growth. Furthermore,
red macroalgae can be cultured in a sustainable and environmentally
friendly manner. We evaluate the potential antiviral
activity against the infectious salmon anemia (ISA) virus of
Chilean red macroalgae as a sustainable feed additive in the
Atlantic salmon (Salmo salar) diet. Lyophilized Chilean red
macroalgae concentrates were elaborated and added to a commercial
diet. Diets were prepared with 0.1, 1.0, and 10.0 % of
Gracilaria chilensis and Pyropia columbina separately, and
0.1 and 1.0 % of a mix of both species in a 1:1 ratio. The diets
were fed to S. salar over a period of 2 months. We collected
data on production parameters and blood samples. The serum
and its constituents were challenged with the ISA virus in the
presence of Atlantic salmon kidney cells and tested ex vivo for
antiviral capacity using a plaque reduction neutralization assay.
Fish fed a diet containing 10 % G. chilensis showed a
significantly higher specific growth rate compared with fish
fed the control diet. The feed conversion ratio was not significantly
affected by treatments. Sera from fish fed the algae
diets showed a significant increase in antiviral activity against
the ISA virus compared with sera of fish fed the control diet
that did not include red macroalgae. Diets including
G. chilensis (1.0 and 10 %) exhibited the largest increase in
antiviral activity.
en_US
Patrocinador
dc.description.sponsorship
BioMar Chile S.A.
Laboratorio de Genetica y Biotecnologia en Acuicultura, Produccion Animal, Facultad de Ciencias Agronomicas, Universidad de Chile
Red macroalgae Pyropia columbina and Gracilaria chilensis: sustainable feed additive in the Salmo salar diet and the evaluation of potential antiviral activity against infectious salmon anemia virus