Productive, nutritional, and economic factors associated with the Lactating Cow Feed Cost-to-Milk Revenue Ratio in small-scale dairy farms
Oswaldo E. Olguín-Juárez
D. Trujillo-Gutiérrez
M. A. Espinosa-Martínez
F. Villaseñor-González
Eduardo J. Cabrera-Torres
H. R. Vera-Ávila
L. J. Montiel-Olguín
Medicine