养值的更不安全

比如三文鱼，人工养殖需要喂养一些药物此深海鱼才能在人工环境下存活。

What’s the problem with farmed salmon?

The majority of salmon on the market is farm-raised, meaning it’s farmed and harvested under controlled conditions in sea cages or net pens. The problem, according to some researchers, is that the crowded conditions of most farms can cause contamination. A 2003 report from the Environmental Working Group (EWG) found that seven out of ten farmed salmon purchased in grocery stores in San Francisco, Washington, DC, and Portland were contaminated with cancer-causing polychlorinated biphenyls (PCBs) at “levels that raise health concerns.”

Additionally, farmed salmon has been found to contain toxic chemicals methylmercury and dioxins, and farms have been accused of polluting the oceans, fostering disease, and spreading sea lice. Salmon farms have also been criticized for other questionable practices, including the content of the feed, which is often supplemented with chemicals to give the fish their pink color (wild salmon develop it naturally).

所有跟帖： 

• 是的，现在的食物就是这么可怕！ -lawattaction- ♀ (0 bytes) () 11/27/2019 postreply 05:09:44