Milk urea-nitrogen negatively affected first-service breeding success in commercial dairy cows in Prince Edward Island, Canada
| Autor: | Arunvipas, P. a, VanLeeuwen, J.A. b, ⁎, Dohoo, I.R. b, Leger, E.R. c, Keefe, G.P. b, Burton, A.S. d, Lissemore, K.D. e |
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| Zdroj: | In Preventive Veterinary Medicine 2007 82(1):42-50 |
| Databáze: | ScienceDirect |
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