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Steam-flaked soybeans in lactating dairy cow diets

2011
Brung, R. and co-workers

In another experiment, twelve multiparous Holstein cows were used in a 4×4 Latin-square experiment with 28-d periods, 14-d for diet transitioning followed by a 14-d sampling period. Treatments included steam –flaked soybeans at 0, 5, 10 and 15% of dietary DM, replacing a mixture of soybean meal, soyhulls, calcium salts of fatty acids, and choice white grease. Animals were fed typical lactating dairy cow diets formulated to be isonitrogenous and isoenergetic containing 60% of DM as forage and 40% of DM as concentrate. Results indicated that dry matter intake was similar for all treatments and milk production, milk fat, protein and lactose percentages were also unaffected by the amount of SFSB in the diet. This research demonstrates that steam-flaked soybeans can be substituted for soybean meal and commercial fat sources while maintaining milk and milk fat production.

Brung, R. and co-workers. 2011. Steam-flaked soybeans in lactating dairy cow diets. J. Anim. Sci. Vol. 89, E-Suppl. 1/J. Dairy Sci. Vol. 94, E-Suppl. 1, abstract M316; page 116.