This is not to say farmed salmon is bad, or has no omega 3 fatty acids.

这并不是说养殖鲑鱼是坏，还是没有奥米加3脂肪酸。

youdao

It takes three to five pounds of caught fish to make one pound of farmed salmon.

生产一磅养殖鲑鱼需要三到五磅的捕捞鱼类。

youdao

It takes up to three kilos of fish meal to add one kilo to the weight of a farmed salmon.

增加养殖鲑鱼一千克的重量需要至少三千克鱼粉。

youdao

Earlier this month, government figures showed farmed salmon production hit a seven year high last year.

BBC: Wild fish rod catches high, says Scottish government

Farmed salmon production hit a seven year high last year, according to Scottish government figures.

BBC: Scottish farmed salmon hits seven year high

The startling decline in wild Scottish salmon is being blamed on pollution and interbreeding between wild and farmed salmon.

ECONOMIST: Pressure is mounting to do something about salmon farms