report

Effect of monensin on weight gain, growth traits, and semen characteristics in yearling beef bulls

Authors

Abstract

Feeding the ionophore monensin to yearling beef bulls improved (P<.05) weight gain by 4.2%. Final hip height was similar between treatments, but bulls fed monensin had almost 1 cm greater (P<.01) scrotal circumference and more than 10 cm 2 larger (P<.01) pelvic area. Semen characteristics generally were unaffected by treatment. However, bulls fed monensin had less (P<.01) semen motility than controls. Approximately 30 sperm morphology traits were evaluated; values were similar between treatments except for those traits listed. Collection date tended to influence (P<.15) volume, concentration, motility, and postfreeze characteristics.

Keywords: Cattlemen's Day, 1994, Kansas Agricultural Experiment Station contribution, no. 94-373-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 704, Beef, Bulls, Performance, Monensin, Semen, Ionophore, Morphology

How to Cite: Peters, C. , Laudert, S. , Corah, L. , Krehbiel, C. & Nichols, D. A. (1994) “Effect of monensin on weight gain, growth traits, and semen characteristics in yearling beef bulls”, Kansas Agricultural Experiment Station Research Reports. 1(1). doi: https://doi.org/10.4148/2378-5977.2077