Low-Phytate Barley Feeding Trials for Aquafeed in Vietnam
Published: December 28, 2007
Source : U.S. Grains Council release
“Barley has not previously been included in Catfish Tra rations, but it’s time that changes,” said Olson. “Lowphytate barley contains attributes that benefit animal nutrition and help reduce phosphorous pollution.”
Approximately 70 percent of the phosphorous in conventional barley exists in the form of phytate which cannot be readily digested by monogastric animals such as fish. The new low-phytate barley known as Clearwater has a 50 percent reduction in phytate, according to research conducted by USDA’s National Small Grains Germplasm Research Facility in Aberdeen, Idaho.
“Specifically, the phosphorous content in low-phytate barley should be more easily digested by Catfish Tra,” said Olson. “This means a greater absorption of nutrients and less phosphorous excreted as waste.”
Catfish Tra feed currently consists of primarily soybean meal, wheat by-products, fish meal and rice by-products and others. Olson said that with increasing U.S. barley production, availability for barley export will logically increase as well, which is the rationale for the Idaho Barley Commission donating the low-phytate barley.
“In order to promote the barley for feeding fish, technical information on the feeding value of U.S.-produced barley should be available for end-users,” she said. “The U.S. Grains Council is the organization that can make this happen and we rely on them to assist in expanding demand for U.S. barley and to educate end-users and consumers on the benefits of all feed grains.”
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