Site and extent of nitrogen digestion in beef heifers fed different combinations of dry rolled corn and high moisture sorghum grain
Streeter, M.N.; Wagner, D.G.; Hibberd, C.A.; Putman, M.R.
Animal Science Research Report, Agricultural Experiment Station, Oklahoma State University (MP-119): 311-315
Dry rolled maize and high-moisture sorghum grain (HMSG) were supplied in respective combinations of 100 and 0, 75:25, 50:50, 25:75 and 0:100% at 2% of body weight (DM basis) to heifers equipped with ruminal, duodenal and ileal T-type cannulae. Total tract nitrogen digestibility decreased linearly with the addition of HMSG. Feed N digestion in the rumen and ruminal escape of feed N tended to increase quadratically when greater levels of HMSG were added to the diet.