TY  - JOUR 
T1  - Effect of several structures of contemporary groups on estimates of (co)variance and genetic parameters for weaning weight in Nellore cattle
JO  - Ciência Animal Brasileira
A1  - Pascoa, Lillian
A1  - Reyes, Arcadio de los
A1  - Elzo, Mauricio A.
A1  - Ferreira, Jorge Luiz
A1  - Bezerra, Luiz A.F.
A1  - Lobo, Raysildo Barbosa
SN  - 1809-6891
UL  - 10.5216/cab.v14i2.13571
VL  - 14 
Y1  - 2013
PB  - Brasil 
ER  -