Mississippi State University
Ward, Stephanie Hill
Rude, Brian J.
Date of Degree
Graduate Thesis - Open Access
Animal and Dairy Sciences
Master of Science
College of Agriculture and Life Sciences
Department of Animal and Dairy Sciences
Objectives of the present study were to evaluate neonatal Holstein heifer performance while supplemented with coccidiostat (CX), yeast (YST), β-glucan or some combination of these products in non-medicated milk replacer. Efficacy of these products on E. coli and coccidia shedding was also observed. No differences (P > 0.05) were observed among treatment groups with respect to performance data collected which included growth, feed intake and efficiency, fecal and respiratory and blood parameters. Heifers fed YST or YST + β-glucan had higher (P = 0.02 and P < 0.01, respectively) fecal E. coli concentrations compared to heifers fed CX, CX + YST, or β-glucan. No heifers showed clinical signs of coccidiosis and appeared to be healthy. These results suggest neonatal heifers may be supplemented with yeast derivatives without negative effects on growth or health performance.
Graves, Jessica Martin, "Performance Of Neonatal Holstein Heifers Fed Yeast Derivatives In Milk Replacer" (2010). Theses and Dissertations. 3505.