animal breeding

the science of using the principles of genetics to make improvements in a livestock species

controlled propagation of domestic animals is used to

animals with common ancestry; live characteristics or genetic phenotypic traits are replicated in the offspring

animals tend to resemble their…

crossbred animals perform better than

non inbred animals tend to perform better than

inbreeding does not cause

performance of offspring is greater than average of performance of the parents

reproductive traits

growth traits

carcass traits

mating of animals more closely related than the average of the breed population to increase homozygosity for desired traits, decreases variation

homozygous

heterozygous

mating closely related animals whos ancestors have been inbred for several generations

a mild form of inbreeding where inbreeding is kept relatively low whilemaintaining high genetic relationship to an ancestor or line of ancestors

species cross, the mating of animals not as closely related as the average population

crossing animals of indifferent species

mating animals of different established breeds

mating of unrelated animals within the same herd

mating of purebred sires to commercial grade females and their female offspring for several generations

number of generations to be considered purebred

traits that can be seen

affects traits that can be measured