TY  - JOUR 
T1  - Association of bGH and Pit-1 gene variants with milk production traits in dairy Gyr bulls
JO  - Pesquisa Agropecuária Brasileira
A1  - Mattos, Keiko Kusamura de
A1  - Del Lama, Silvia Nassif
A1  - Martinez, Mario Luiz
A1  - Freitas, Ary Ferreira
SN  - 0100-204X
UL  - 10.1590/S0100-204X2004000200007
VL  - 39 
Y1  - 2004
PB  - Brasil 
ER  -