WordNet sense 1 (half-caste offspring of parents of different races (especially of white and American Indian parents)):

half-breed

WordNet sense 2 (a special variety of domesticated animals within a species):

stock, strain

WordNet sense 3 (call forth):

engender, spawn

WordNet sense 4 (copulate with a female, used especially of horses):

cover

WordNet sense 5 (have young (animals)):

multiply, multiply