Salmon affected by ISA virus. (Photo: Stock File)
ISA virus outbreaks fall 50pct in salmon sector
CHILE
Wednesday, August 16, 2017, 23:50 (GMT + 9)
Health management in the aquaculture sector has improved. This was revealed by the 2016 salmon farming health report issued by the National Fisheries and Aquaculture Service (SERNAPESCA).
The study, which used information from companies, diagnostic laboratories and data from the agency itself, showed progress in the treatment of the deadly infectious salmon anemia (better known as ISA virus). Thus, two outbreaks of this disease occurred, which resulted in a 50 per cent fall compared to those detected in 2015. Both outbreaks were discovered in Aysén and were circumscribed in the same macrozone.
SERNAPESCA Aquaculture deputy director Alicia Gallardo argued that "this ratifies the successful control of this disease, which Chile has maintained with a precautionary approach. This can be corroborated with regards to Norway, which for the same year registered 12 cases in comparison to the three that Chile had, only two of which were outbreaks. "
She added that "from the condition of viral diseases that the World Organization for Animal Health (OIE) considers important for trade, Chile has the best status compared to the other salmon producing countries."
As for caligidosis, associated with the so-called "sea lice", the report noted that it remained under control in 2016. Meanwhile, in relation to piscirickettsiosis, the disease continues to maintain a seasonal trend.
Gallardo noted that "the health condition of salmon farming in Chile stands out against Norway, especially with respect to the occurrence of cases of diseases with high economic and health impact, particularly alphavirus, which has had an explosive increase in cases reported by Norway to the OIE, with 62 in 2015 and 138 cases in 2016, versus none in Chile.
Source: Luis Musquiz/El Mercurio
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