Potential alternatives for fish feed

The Ethicurean blog yesterday ran an interesting roundup of alternative fish feeds that fish farmers could use now or in the future to feed their water-bound livestock.

The ethical issue the blog attempts to address is the presence of fish meal and fish oil in what farmers currently need to feed to piscivore species of farmed fish, such as salmon. The blog post's author, Marc R., begins with the premise (supported by a recent article published in the Proceedings of the National Academy of Sciences) that catching wild fish to supply the fish meal and fish oil destined for the bellies of farmed fish is unsustainable.

The blog post covers everything from the potential of selectively breeding fish to better digest plant proteins to the GM question to raising insects for a feed substitute. Check it out and let me know what you think.


* Originally posted to The New Aquaculture on Monday November 23, 2009.

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