Summary of Implant Programs for Feedlot Heifers using Synovex® Plus™ or Finaplix®-H with MGA

Authors

Casey Macken, University of Nebraska-Lincoln
Todd Milton, University of Nebraska-Lincoln
Bill Dicke, Cattlemen’s Consulting, Lincoln, Nebraska
Dave McClellan, McClellan Consulting, Fremont, Neb.

Date of this Version

January 2002

Comments

Published in 2002 Nebraska Beef Cattle Report. Copyright © 2001 The Board of Regents of the University of Nebraska.

Abstract

Data from three feeding trials conducted in commercial feedlots designed to evaluate implant programs for finished heifers have been summarized. Implanting with Synovex Plus and feeding MGA improved ADG by 4.4% compared to implanting with Finaplix-H and feeding MGA resulting in 10 lb heavier carcasses. Heifers that were implanted with Synovex Plus had increased DMI compared to those implanted with Finaplix-H. Percentage of heifers grading Choice or above was lower for those heifers implanted with Synovex Plus compared to Finaplix-H, though marbling score only tended to be lowered for those heifers implanted with Synovex Plus compared to implanting with Finaplix-H.