Effect of a direct-fed microbial (10-G Armor) on feedlot performance, carcass characteristics, and prevalence of in fed-beef heifers.

Crossbred beef heifers (= 1,394; initial shrunk body weight [BW] 291 ± 9.9 kg) were used to investigate the efficacy of 10-G Armor (Life Products, Inc., Norfolk, NE; 10-G) upon feedlot performance, carcass characteristics, and fecal and subiliac lymph nodes prevalence.