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A comparison of Estradiol-Trenbolone Acetate implant programs for Yearling Steers of Two Genotypes

R.H Pritchard
South Dakota State University

Overview

  • 141-145 day finishing period
  • 400 steers; 200 blackhided and 200 continental crosses
  • To evaluate the effective payout for Revalor-S, Synovex-Plus
  • Four Implant Programs
    1. No Implant (control)
    2. Revalor-S day 0 (Rev)
    3. Synovex-Plus day 0 (Syn+)
    4. Ralgro day 1; Revalor-S day 56 (Ral/Rev)

Percent Choice by Implant ProgramRalgro Beef Cattle Implants

 

Marbling Rate by Implant ProgramRalgro Canada

Results
Implants increased hot carcass weight by 65 lb. The carcasses produced by the three implant groups were of similar weights.

Marbling scores and percent choice were higher for the reimplanted steers, the RALGRO/Revalor-S group, than for the two groups that received TBA on day 1.

Conclusion
The additional cost associated with reimplanting would be more than offset by the increased carcass value associated with this strategy.

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