Issuing Body

Mississippi State University

Advisor

Ward, Stephanie Hill

Committee Member

Rude, Brian J.

Committee Member

Brett, Jim

Committee Member

Vizzier-Thaxton, Yvonne

Date of Degree

1-1-2010

Document Type

Graduate Thesis - Open Access

Major

Animal and Dairy Sciences

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Animal and Dairy Sciences

Abstract

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.

URI

https://hdl.handle.net/11668/17260

Comments

mannanoligosaccharide||heifers||coccidostat

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