Selection for desirable bovine phenotypes has been practiced since the domestication of cattle, which occurred approximately 10,000 years ago. This process of domestication has brought about a marked change in behavioral and morphological characteristics in the subspecies and, together with the development of breeds and genetic breeding programs, has given rise to the enormous variety of patterns and racial types known today. Since then, traditional breeding tools, based on quantitative theory,

Status: Completed     Start date: Thu Jan 01 00:00:00 GMT-03:00 2015