In collaboration with the Japanese aquaculture industry, USGC is conducting a DDGS feed trial with rainbow trout at a commercial aquaculture farm.
Japan receives much of its fish meal from Chile, the world’s main supplier. However, after the earthquake earlier this year Chile still struggles to recover from the damage to its productivity, resulting in higher global fish meal prices.
“The Japanese fish producers have been troubled with a rapidly increasing cost for fish meal,” said Hiroko Sakashita, USGC associate director in Tokyo.
Additives in fish meal
Sakashita explains that the higher cost of fish meal in Japan, as compared to the cost in other countries, is also attributed to the use of several additives in the Japanese fish meal.
Another reason is a surging demand in Asia and a simultaneous deficit in supply.
Japan is already a steadily growing market for DDGS, importing 250,000 tonnes in 2009.
The Council has had great success with the ethanol co-product in Japan in its dairy, swine, and poultry industries, and it seems fitting to expand the already imported product to its aquaculture sector.
Trial at trout farm
The aquafeed trial aims to support the research conducted by the Aichi Trout Farmers Cooperative Association and to find a less expensive alternative for replacing the expensive fish meal. The feed trial uses high-protein DDGS, which is much less expensive than fish meal.
A local Japanese fish farm has set up four indoor water tanks of rainbow trout, and is feeding them with four different compound feeds for three months.
The feed used for the experiment includes high protein DDGS, with 20% of the total feed partially replacing fish meal and soybean meal.
A successful demonstration of the trial will show the feed efficiency of high protein DDGS for fish as an alternative protein source and is expected to increase the demand of DDGS for the Japanese fish feed market, which is larger than 500,000 tonnes in total.