0 an animal or plant that is a mixture of breeds and is therefore a new variety (= type of plant or animal)
1 to cause a plant or animal to breed with another plant or animal of a different type in order to produce a new variety (= type of plant or animal):
Farmers were forced to crossbreed pedigree cattle with larger types to ensure that they grew to full size within the allowed time.
Scientists have crossbred plants for years to create desirable traits, such as insect resistance.
The cows were crossbred to produce a hardy breed that was accustomed to the heat.
In this context, production systems should be designed to permit crossbreeding without endangering the parent indigenous straightbreds.
Genetic gain of pure line selection and combined crossbred purebred selection with constrained inbreeding.
A tactical approach to the design of crossbreeding programs.
Other factors involve the economic forces of globalization and the utilization of the few, more productive indigenous stock in crossbreeding programs with exotic breeds2.
The roles of mutation, inbreeding, crossbreeding and selection in evolution.
