Novel aquafeed ingredient shown to improve largemouth bass performance

The Fish Site
by The Fish Site
12 October 2022, at 8:07am

Largemouth bass fed a diet containing FeedKind, Calysta's novel single-cell protein, experience increased growth, better survival and improved gut health, according to a new study.

Calysseo is building a plant in Chongqing which will have the capacity to produce 20,000 tonnes of FeedKind per year

The 10-week growth study carried out by the Institute of Feed Research, Chinese Academy of Agricultural Sciences in Beijing compared the performance of FeedKind-fed bass with a control group using a fishmeal-based feed. Other observed benefits included better digestibility of dry matter and nutrients, better antioxidant capacity and better microbial diversity.

While noting that a diet high in fishmeal content was not the best choice for largemouth bass, the report published in MDPI found that containing 3-6 percent FeedKind in a low fishmeal and high plant protein diet provided optimal benefit.

Allan LeBlanc, Calysta’s head of animal feed, said in a press release: “Largemouth bass production in China is rapidly growing and the results of this study show how a diet comprising FeedKind can deliver tangible benefits not just to the fish themselves, but to the farmer.”

The results come as Calysta works with Adisseo to commission the world’s first industrial scale FeedKind plant, via Calysseo, their 50/50 joint venture to produce the novel protein for China and the wider Asian aquaculture market.

“This news comes at an important time for the Asian aquaculture sector, with the first commercial quantities of FeedKind set to come from the new Calysseo plant by the end of the year,” added LeBlanc.

Calysseo is building its maiden plant in Chongqing, China, which has a capacity of 20,000 tonnes per year of FeedKind protein from the first phase of the project, with further expansion planned in future to cope with demand.

FeedKind Aqua is a natural, sustainable and traceable feed ingredient for aquaculture, produced by fermentation. FeedKind has been validated via extensive trials across popular aquaculture species, including shrimp, seabass, and salmon.

Research previously demonstrated distinct benefits for shrimp, concluding that FeedKind promotes strong, healthy growth, while also helping activate shrimp’s immune response to Vibrio, the causative agent of early mortality syndrome.