The effect of PCV2 on liveweight and mortality

A number of farmers have observed that after starting vaccinating with porcine circovirus type 2 (PCV2) piglet vaccines the farm’s performance was better than it had been prior to breaking down with PCV2. How can this be? By David Burch, veterinarian, Octagon Services, Old Windsor, Berkshire, UK When first looking at the financial modelling of Post-weaning Multisystemic Wasting Syndrome (PMWS) affected farms, there was relatively little data and mainly the trials had been carried out on f