Effect of gonadotropin-releasing hormone in long-term controlled internal drug-release protocols on pregnancy rates in beef heifers artificially inseminated after observed estrus or fixed time
| Autor: | Peel, R.K. *, Seabrook, J.L. *, Seidel, G.E., Jr. †, Whittier, J.C. *, Grove, A.V. ‡, Ahola, J.K. * |
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| Zdroj: | In The Professional Animal Scientist June 2013 29(3):228-236 |
| Databáze: | ScienceDirect |
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