In September 2008 two 600 sow birth to bacon units reported an increase of ”humpy-backs” from 6 – 8 weeks of age and lameness from 6 weeks of age during the previous 5 months.
There was no response to antibiotic treatment. Farm B re-stocked from Farm A. Both units are closed to outside pig introductions other than semen. Both units are negative to major pathogens other than Porcine Circovirosis and Mulberry Heart Disease.
Jesus Borobia Belsue
MOSSVET, Portadown, UK
For full presentation see attached pdf