Question

how does breeding help to increase the yield of domestic animals

Answer 1

Animal breeding is the process of selective mating of animals with desirable genetic traits, to maintain or enhance these traits in future generations. For livestock, this involves estimation of the genetic value of individuals for traits including growth rate and yield of products such as eggs, milk or meat.

Answer 2

Unlike other forms of animal or plant management, selective breeding can be performed by anyone with appropriate knowledge of what is required. Once the specific characteristics of the plant or animal have been identified with appropriate parentage, multiple generations can be produced at the same location to create the changes which are desired. This is the advantage of breeding.