methionine, receiving cattle, haptoglobin
Objective: This study was conducted to evaluate the ability of supplemental methionine to improve health, inflammation status, and performance of receiving cattle.
Study Description: A group of 384 crossbred heifers (initial weight 489 lb) of Tennessee origin were used in a 45-day receiving trial with limit-feeding to evaluate the effects of supplemental methionine (Smartamine M; Adisseo, Alpharetta, GA) on health, inflammation, and performance. Cattle received either 0 (control) or 10 grams/day Smartamine M, a ruminally protected methionine product. Plasma haptoglobin levels measured on days 0, 14, and 45 were used as a biomarker of inflammation.
The Bottom Line: Supplemental methionine supplied by Smartamine M does not improve performance but reduces inflammation and possibly improves immune function in receiving heifers.
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Grant, M. S.; Speer, H. F.; Hollenbeck, W. R.; Wahl, R. N.; Luchini, N. D.; Blasi, D. A.; and Titgemeyer, E. C.
"Smartamine M Supplementation Reduces Inflammation but Does Not Affect Performance in Receiving Beef Heifers,"
Kansas Agricultural Experiment Station Research Reports: