ruminant, lambs, soybeans, fiber, energy, nitrogen digestibility
The potential for including freeze damaged, immature soybeans (FDIS) into corn based diets for ruminant animals was evaluated in a series of experiments. No differences in feeding value were evident for FDlS and normal soybeans except due to oil content. Oil content of soybeans depressed dry matter and particularly fiber digestion of corn silage fed to lambs (Pe.05). Nitrogen digestion and retention were also reduced (Pe.10) by feeding raw soybeans. The effect on N utilization appeared to be due to trypsin inhibitor activity, since this did not occur when soybean meal + oil supplements were fed. Nitrogen, dry matter and gross energy utilization decreased dramatically (Pe.05) when FDlS increased from 14 to 21% of corn silage diets. Use of FDlS in corn silage diets should be restricted to no more than 15% of diet dry matter.
Number of Pages
South Dakota State University
Copyright © 1989 South Dakota State University
Loesche, J.A.; Pritchard, R. H.; and Reecy, J. M., "Frost Damaged, Immature Soybeans for Ruminant Diets" (1989). South Dakota Beef Report, 1989. 7.