@article{032972557, title = "Production responses to estradiol and trenbolone acetate combinations in feedlot steers", author = "Bartle, S.J. and Preston, R.L. and Montgomery, T.H. and Herschler, R.C.", year = "1992", journal = "Journal of Animal Science", volume = "70", number = "Suppl 1", pages = "44", issn = "0021-8812", url = "https://eurekamag.com/research/032/972/032972557.php" }