Evaluation of between-cow variation in milk urea and rumen ammonia nitrogen concentrations and the association with nitrogen utilization and diet digestibility in lactating cows
| Autor: | Huhtanen, P. *, Cabezas-Garcia, E.H. *, Krizsan, S.J. *, Shingfield, K.J. †, ‡ |
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| Zdroj: | In Journal of Dairy Science May 2015 98(5):3182-3196 |
| Databáze: | ScienceDirect |
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