Soybean meal nutritional value for swine varies among sourcesSoybean meal nutritional value for swine varies among sources
Nutritional value of soybean meals produced in different countries may differ and should be considered when purchasing and formulating diets.
July 25, 2017
Research from the University of Illinois is helping swine producers know what they're getting when they buy soybean meal from different countries. Genetic differences among varieties of soybeans, as well as differences in growing conditions and processing, may affect the nutritional value of soybean meal produced in different places.
The largest producers of soybean meal in the world are China, Argentina, Brazil, the U.S. and India. In many swine-producing countries around the world, soybean meal is imported from one of these five countries, and buyers can choose among them. Until now, however, there have been very limited data to compare the compositional and nutritional value to pigs of soybean meal produced in different countries.
Hans H. Stein, professor of nutrition in the University of Illinois department of animal sciences, conducted an experiment to compare the nutritional composition and amino acid digestibility by pigs using soybean meal produced in the five major soybean-producing countries.
Stein and doctoral student Vanessa Lagos collected five sources of soybean meal each from China, Argentina, Brazil and the U.S. and four sources from India. They then fed diets containing the 24 soybean meal sources to growing barrows.
"Our data indicate that the amount of digestible protein and amino acids was greater in soybean meal from the U.S., India and Brazil than in soybean meal from Argentina or China," Stein reported.
Soybean meal from Brazil and India had the greatest concentration of crude protein and amino acids, he said. However, the standardized ileal digestibility of crude protein and amino acids was greatest in soybean meal from the U.S.
Stein said in the global economy, feed ingredients may be sourced from a number of different regions.
"It's important to know that the nutritional value of soybean meal produced in different countries may be different and to take those differences into account when making decisions about purchasing and diet formulations. Results of this experiment indicating that the concentration of digestible amino acids is less in soybean meal sourced from Argentina or China than in soybean meal from the U.S. gives international buyers increased information to base purchasing decisions on," he said.
U.S. Soybean Export Council (USSEC) chairman Jim Miller said the results of this study echo USSEC's strategy of building a preference for U.S. soy around the world.
"We have boots on the ground in six global regions to educate our customers on the intrinsic and extrinsic advantages of U.S. soy using the latest research and information," Miller explained. "U.S farmers have always believed that our product is very consistent, and Dr. Stein's study proves that soybean meal from the U.S. has less variability in both composition and digestibility."
The paper, "Chemical Composition & Amino Acid Digestibility of Soybean Meal Produced in the United States, China, Argentina, Brazil or India," was published in the Journal of Animal Science.
USSEC and the Indiana Soybean Alliance provided funding for the study.
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