Large pen feedlot studies (n = 7) with heifers and steers (n = 17,571) were conducted in North America with the objective to determine the effects of orally administered Megasphaera elsdenii NCIMB 41125 (Lactipro; LP) at terminal processing on subsequent…

Meat plays an important role in alleviating micronutrient deficiencies, particularly due to its richness in various highly bioavailable mineral elements. However, how minerals accumulate in meat and whether genetics plays a role is still poorly understood.

Ruminants can use non-protein nitrogen (NPN) due to the symbiotic relationship with rumen microbes; however, there is limited information on supplementing different NPN mixtures on ruminal fermentation and microbial protein synthesis. Twelve American…