Document Type
Report
Report Number
91-14
Publication Date
1991
Keywords
feedlot, steers, implant, carcass
Summary
Various implant strategies were compared in heavy yearling steers fed for 98 days. Implant treatments included control (nonimplanted), 722 (72 mg zeranol), 36TBA (36 mg zeranol plus 140 mg trenbolone acetate [TBA]), 72TBA (72 mg zeranol plus TBA) and ETBA (20 mg estradiol-200 mg progesterone plus TBA). The 72-mg zeranol dosage represents two implants in one site. Combinations of implants were administered, one in each ear. Implanting increased (P<.05) ADG and DM1 and decreased (P<.05) feed/gain values. Among implanted steers, no differences (P>.10) in ADG or DM1 were observed. Feed/gain was lower (P< .05) for zeranol-TBA combinations than the 72-mg zeranol treatment. Carcasses were heavier and rib eye area was greater (P<.05) in the 72TBA than 36TBA treatment. Kidney-pelvic-heart fat was lower (P<.05) when the ETBA combination was used.
Number of Pages
3
Format
application/pdf
Language
en
Publisher
South Dakota State University
Rights
Copyright © 1991 South Dakota State University.
Recommended Citation
Pritchard, R. H. and Robbins, M. A., "Implant Strategies for Yearling Steers" (1991). South Dakota Beef Report, 1991. 14.
https://openprairie.sdstate.edu/sd_beefreport_1991/14