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- Bastin, C.; Laloux, L.; Gillon, A.; Miglior, F.; Soyeurt, H.; Hammami, H.; Bertozzi, C.; Gengler, N.
- Journal of dairy science 2009 v.92 no.7 pp. 3529-3540
- milk; urea; mathematical models; dairy cows; dairy herd management; prediction; variance; dairy herds; heritability; estimation; milk composition; chemical composition; detection; Belgium
- ... The aim of this study was to develop an adapted random regression test-day model for milk urea (MU) and to study the possibility of using predictions and solutions given by the model for management purposes. Data included 607,416 MU test-day records of first-lactation cows from 632 dairy herds in the Walloon Region of Belgium. Several advanced features were used. First, to detect the herd influenc ...