An
animal unit requires 1 to 15 ha for annual maintenance under the Chihuahuan
environment, and though Chihuahua has been ranked in the first place in exports of calves
for years, its imports exceeds the amount of meat for domestic consumption (Rodríguez,
2001). With an area of 17,751,221 ha, Chihuahua’s territory has low rainfall according to
data reported by the National Water Commission (CONAGUA, 2009).