TY  - JOUR 
T1  - Nutritional value of forage species from the Central Highlands Region of Mexico at different stages of maturity
JO  - Ciência Rural
A1  - Rayas Amor, Adolfo Armando
A1  - Estrada Flores, Julieta Gertrudis
A1  - Mould, Fergus Lawrence
A1  - Castelán Ortega, Octavio Alonso
SN  - 0103-8478
UL  - 10.1590/S0103-84782012000400022
VL  - 42 
Y1  - 2012
PB  - Brasil 
ER  -