Nebraska Study Finds no Ill Effects of Zilpaterol in Finished Cattle

December 12, 2015 04:45 PM

By: John Maday, editor of Bovine Veterinarian 

In a study reported in the December issue of the Journal of Animal Science, researchers from the University of Nebraska and the U.S. Meat Animal Research Center compared welfare factors and animal performance between cattle fed or not fed the beta agonist zilpaterol hydrochloride during the final 21 days of finishing. The study also compared the effects of shaded versus non-shaded pens on treated and control cattle.

The researchers monitored a group of 480 steers, 22 percent with black hides and 78 percent with red hides. They used a randomized block design with a 2 × 2 factorial treatment arrangement with four replicates per treatment, and measured performance, carcass quality, heat stress, mobility and body temperature.

Variables in the study included open versus shaded pens and feeding versus not feeding zilpaterol during the last 21 days on feed with a three-day withdrawal.


Back to news




Spell Check

No comments have been posted to this News Article

Corn College TV Education Series


Get nearly 8 hours of educational video with Farm Journal's top agronomists. Produced in the field and neatly organized by topic, from spring prep to post-harvest. Order now!


Market Data provided by
Brought to you by Beyer