Prediction of urinary nitrogen and urinary urea nitrogen excretion by lactating dairy cattle in northwestern Europe and North America: A meta-analysis
| Autor: | Spek, J.W. *, †, Dijkstra, J. *, van Duinkerken, G. †, Hendriks, W.H. *, Bannink, A. † |
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| Zdroj: | In Journal of Dairy Science July 2013 96(7):4310-4322 |
| Databáze: | ScienceDirect |
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