Effect of a fermentation product on postweaning heifer performance.

The objective of the experiment was to compare the effect of dietary inclusion of a prebiotic fermentation product of (LaP, RumaCell; 5 mL animal d) or monensin on performance of replacement beef heifers. Heifers received a total mixed ration containing either LaP ( = 77) or monensin (MON; Rumensin; 200 mg animal d;  = 79). Heifers were fed for 71 d in a GrowSafe unit, so individual feed intake could be measured.