CHILE <http://www.fis.com/fis/companies/index.asp?l=e&country=cl>
Friday, September 17, 2010, 00:40 (GMT + 9)
A team of scientists from the Aquatic Biotechnology Center of the
University of Santiago, have discovered that there is a link between the
infectious salmon anemia (ISA) virus that hit the Chilean salmon
industry and the Norwegian strain of the disease.
The researchers compared the genomes of infected fish in Chile with the
information of specimens infected in Norway, reports the newspaper
El Mercurio.
"It was logical that the disease had come with its own host, which is
the Atlantic salmon," said Marcelo Cortez San Martin, an expert who
participated in the project.
The studies results were published this month in the
Virology Magazine, one of the most prestigious in the world for its field.
Scientists who conducted the investigation confirmed that the virus
entered the country through imported eggs and ruled out the possibility
that the disease was latent historically in Chile.
"The theory that everyone believes, and is highly accepted, is that the
virus came from the eggs. When Chile began in the industry, they did not
have the technology to reproduce the fish. So initially, they had to be
a big importer," said Cortez San Martín.
What scientists can not clarify is whether the arrival of this virus into the country was intentional or accidental.
Even last August, the Office of Puerto Montt decided not to persevere in
the investigation to find any individuals responsible for the spread of
the ISA virus due to a lack sufficient background information to accuse
any person or company.
The National salmon farming industry has been facing the consequences of
the ISA outbreaks since 2007: a deep crisis affecting sanitation, jobs
and the economy.
In the region of Los Lagos, in particular, the virus to date has caused a loss of more than USD 160 million, according to
Ecoceanos News.
Last year, Roberto Neira, a researcher at the University of Chile, said
the closure of the country's borders to the importation of eggs to
prevent the introduction of diseases such as ISA, among others, is
"essential for health security reasons."
"The important thing is that the genetic management is adequate to
produce good quality eggs with implemented genetics and propagation
systems which are required. There is a lot of knowledge over the issue,
of good quality, as demonstrated by Chilean contributions which have
been published and recognised even at an international level," said
Neira.
He added: "I think if they close the borders to the importation of eggs,
the benefits will far outweigh any potential losses. However, it is
argued that imports are worth the risk as they could afford exceptional
genetic stocks that allow for high-quality lines to replace any losses
incurred by allowing imports from sources qualified under strict
sanitary control tests with high technical requirements."
Related article:
- Another wave of layoffs shake up salmon industry <
http://www.fis.com/fis/worldnews/worldnews.asp?l=e&ndb=1&id=35581>
- Stopping foreign roe entry is 'indispensable': researcher <
http://www.fis.com/fis/worldnews/worldnews.asp?l=e&id=34466&ndb=1>
By Analia Murias
editorial@fis.com
www.fis.com <http://www.fis.com/>