Pig disease alert
ALL-IN, all-out systems are not being used efficiently to control disease on many pig units.
Vet John Carr warned producers at a North Yorks meeting that although it was normal to have some disease in pig units, it needed to be managed.
"Too often, policy is to serve every sow or gilt seen in season without taking into consideration the number of pigs being sold off the unit on a week by week basis." *