Thursday, January 27, 2011

Australia: Testing low fishmeal feeds

Leading Australian Atlantic salmon farm, Tassal, has recently completed trials comparing feeds with low levels of fishmeal and conventional feeds. Results showed no difference between the conventional 22 percent fishmeal feed and a 15 percent fishmeal feed made using Skretting’s MicroBalanceTM concept. An eight percent fishmeal feed also performed well enough for Tassal to consider this as a commercial option for grower feeds in 2011.

Tassal has a strong interest in sustainability, having appointed Linda Sams, Chief Sustainability Officer to the executive management team and a sustainability team reporting to her. “When we explained the MicroBalanceTM concept to Tassal, they were keen to test it in their own farming conditions,” says Rhys Hauler, Nutritionist and Product Manager with Skretting Australia. “We prepared two Optiline grower feeds for the trials, using the MicroBalanceTM concept.

This enables us to make feeds where fishmeal levels are much lower than usual by providing alternative proteins with a range of micronutrients conventionally derived from fishmeal. One Optiline feed had 15 percent fishmeal and the other only eight percent, both using a combination of local land animal proteins and local vegetable proteins. They were compared with an Apollo formulation with 22 percent fishmeal over a 74-day feeding period for the 15 percent formulation and 56 days with the eight percent product.”

This blog is written by Martin Little The Aquaculturists, published and supported by the International Aquafeed Magazine from Perendale Publishers.

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