In animal fancy and animal husbandry, entire indicates that an animal has not been desexed, i.e. spayed (female) or neutered (male).

Animals are desexed for selective breeding purposes. Males may also be neutered in order to make them more tractable. A specialized vocabulary has arisen for neutered animals of given species, see more at castration.

Except where a desexed pet is desirable, entire animals usually fetch much higher prices than castrated ones.