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Calysta, a California start-up, has formed an aquaculture feed joint venture with the feed additives firm Bluestar Adisseo. Calysta’s bacteria turn methane into protein for fish, reducing the need for feed derived from wild-caught fish. The venture will build the first commercial-scale plant for the protein by 2022 in China. It will be able to produce 20,000 metric tons per year.
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