A flock’s performance significantly affects profitability through either reduced costs, or increased output. Lambs which grow quicker will cost less to finish, or weigh more as stores; ewes which successfully rear more lambs will increase income. Whilst good flock management is important, individual performance is also driven by genetics.
Geneticists have developed tools to help measure and identify superior genetics and therefore help producers select the best genetics for their flock. Estimated Breeding Values (EBVs) offer a prediction of how an individual’s offspring will perform compared to others. This information helps flock managers to make informed decisions about the breeding stock they purchase for characteristics that are not easy to see on sale day.