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Studies were conducted to describe and evaluate the dynamics of bulk tank (LE) somatic cell counts (RCS), milk urea nitrogen (NUL), fat and protein and to analyse their association with reproductive indices, considering monthly LE samples from 187 farms (∼12 000 dairy cows at any time) in...

Pinedo, P. J.; Meléndez, P.
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Archivos de Medicina Veterinaria, 2010, 42, 1, pp 41-48
AbstractFull Text

The objective of this study was to determine if the supplementation with two carbohydrate sources that have different degradation rates, reduces the ammonia production by ruminal bacteria by increasing the nitrogen capture in dairy cows grazing high protein contents pastures. Four dairy cows fitted ...

Manterola, H. B.; Carreño, N. G.; Orellana, M. C.; González, H. V.; Cerda, D. A.
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Archivos de Zootecnia, 2013, 62, 240, pp 491-499