Effects of Ralgro® implants from birth to slaughter on performance, masculinity, and behavior of young bulls

Authors

D.G. Gray
John A. Unruh
Michael E. Dikeman

Keywords

Cattlemen's Day, 1985; Kansas Agricultural Experiment Station contribution; no. 85-319-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 470; Beef; Implants; Performance; Masculinity; Behavior; Bulls

Abstract

Implanting bulls with Ralgro® from birth to slaughter resulted in performance similar to that of nonimplanted bulls. However, implanted bulls were less masculine, had smaller scrotal circumference up to 16 months of age, had lower serum testosterone levels up to 13 months of age, and were less aggressive from 12 to 14 months of age compared to nonimplanted bulls.

Recommended Citation

Gray, D.G.; Unruh, John A.; and Dikeman, Michael E. (1985) "Effects of Ralgro® implants from birth to slaughter on performance, masculinity, and behavior of young bulls," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.2456