AGB 211: Livestock and Poultry Breeding (2+1)

TOP CROSSING

• This is a system of crossing which is normally used within pure breeds. Top crossing refers to the use of highly inbred males to the females of the base population or non-inbred population. Top cross usually refers to the best sire in a pedigree. Top crossing also refers to the continued use of sires to different families within a pure bred, same breed or different breed.