DigitalCommons@University of Nebraska - Lincoln - April Tefler, Ryann McFee, Rebecca C. Bott, Joseph Schulz, Debra T. Clopton, Jeffrey W. Bergman, Karl V. Moline, Kathryn J. Hanford, and Andrea S. Cupp: Feeding Melengestrol Acetate to Bulls Prior to and at Puberty Alters Body Weight, and Hormone Concentration

Nebraska Beef Cattle Reports

Title

Feeding Melengestrol Acetate to Bulls Prior to and at Puberty Alters Body Weight, and Hormone Concentration

Authors

April Tefler, University of Nebraska - Lincoln
Ryann McFee, University of Nebraska - Lincoln
Rebecca C. Bott, University of Nebraska - Lincoln
Joseph Schulz, University of Nebraska - Lincoln
Debra T. Clopton, University of Nebraska - Lincoln
Jeffrey W. Bergman, University of Nebraska - Lincoln
Karl V. Moline, University of Nebraska - Lincoln
Kathryn J. Hanford, University of Nebraska
Andrea S. Cupp, University of Nebraska-Lincoln

Document Type

Article

Date of this Version

January 2006

Comments

Abstract

Melengestrol acetate (MGA), which is commonly used in the beef industry to manipulate ovarian activity of females, was fed to bulls at two times during development, prepubertal (5.5 to 7.5 months) and peri-pubertal (6.5 to 9.5 months), to determine effects on testes size, scrotal circumference, body weight, and/or hormone production. We can conclude that feeding bulls MGA during the prepubertal and peri-pubertal time can alter body weight and testosterone production.

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