ABOMASAL LEVELS OF LYSINE A N D METHIONINE IN WETHERS FED POLYMERIZED L-LYSINE-HCI A N D POLYMERIZED L-METHIONINE
Field Crops Utilization and Marketing Research Laboratory, U S D A - A R S 2 Athens, GA 3 0 6 0 4
SUMMARY Three experiments were conducted with rumen- and abomasum-cannulated wethers to determine the effects of feeding a lysine-ureaformaldehyde polymer (lysine polymer), a methionine-urea-formaldehyde polymer (methionine polymer) or a lysine-methionine-ureaformaldehyde polymer (lysine-methionine polymer) on the daily quantities of crude protein, lysine and methionine reaching the abomasum. In Experiments 1 and 2, the wethers were fed a basal diet plus either Lqysine from L-lysine-HC1 or the lysine polymer. Crude protein (CP) in the liquid and total abomasal digesta was not affected by the lysine polymer; however, CP in the solid digesta was increased (P
Field Crops Utilization and Marketing Research Laboratory, U S D A - A R S 2 Athens, GA 3 0 6 0 4
SUMMARY Three experiments were conducted with rumen- and abomasum-cannulated wethers to determine the effects of feeding a lysine-ureaformaldehyde polymer (lysine polymer), a methionine-urea-formaldehyde polymer (methionine polymer) or a lysine-methionine-ureaformaldehyde polymer (lysine-methionine polymer) on the daily quantities of crude protein, lysine and methionine reaching the abomasum. In Experiments 1 and 2, the wethers were fed a basal diet plus either Lqysine from L-lysine-HC1 or the lysine polymer. Crude protein (CP) in the liquid and total abomasal digesta was not affected by the lysine polymer; however, CP in the solid digesta was increased (P
