TY  - JOUR 
T1  - Validation of models for predicting milk urea nitrogen concentrations, estimating dry matter intake by the NRC (2001)
JO  - Revista Brasileira de Zootecnia
A1  - Meyer, Paula Marques
A1  - Machado, Paulo Fernando
A1  - Coldebella, Arlei
A1  - Cassoli, Laerte Dagher
A1  - Coelho, Karyne Oliveira
A1  - Rodrigues, Paulo Henrique Mazza
SN  - 1516-3598
UL  - 10.1590/S1516-35982012000500026
VL  - 41 
Y1  - 2012
PB  - Brasil 
ER  -