TY  - JOUR 
T1  - Performance of crossbred lactating cows at grazing in response to nitrogen supplementation and different levels of concentrate feed
JO  - Arquivo Brasileiro de Medicina Veterinária e Zootecnia
A1  - Gutierrez, G.S.
A1  - Lana, R.P.
A1  - Teixeira, C.R.V.
A1  - Veloso, C.M.
A1  - Rennó, L.N.
SN  - 0102-0935
UL  - 10.1590/1678-4162-10265
VL  - 71 
Y1  - 2019
PB  - Brasil 
ER  -