AT A GLANCE
Mark and Naomi Cooper in partnership with Raymond and Rowena Brock
Location: Cooinda, Waipahi, South Otago
Increasing productivity within the flock.
Genetic improvement so they can create an elite mob producing twins.
As a management tool the tags gauge liveweight and how well the farm is feeding stock.
Record liveweights which indicate how well their mothers are milking, and mothering ability.
Target good growth rates to get the lambs off their mothers.