A research project designed to identify pigs with a genetic pre-disposition to degenerative joint disease has been launched by a broadly-based group of UK scientists, as a first step in enabling producers to select non-affected strains for future breeding purposes.
The project, which is funded by the Universities Federation for Animal Welfare (UFAW), aims to identify molecular markers in the blood and joint tissue of pigs affected by degenerative joint disease which could in future be used to identify animals likely to develop the condition before clinical signs appear.
“Lameness is a serious animal welfare and economic problem in commercial pig farming which has been found to affect up to 20% of pigs, an estimated 230,000 animals annually in the UK,” said UFAW. “Gaining the ability to predict the onset of clinical lameness will not only enable early intervention to alleviate pain, but may also allow selection of non-affected animals for breeding, so reducing the genetic pre-disposition to lameness.”
The project draws together a multi-disciplinary team in which researchers in human osteoarthritis from Arthritis Research UK’s Centre for Osteoarthritis Pathogenesis (the Kennedy Institute at University of Oxford) and for Pain (University of Nottingham) will work alongside animal scientists from the SRUC (Scotland’s Rural College) and Newcastle University.
“The relationships between the disease, specific biomarkers and subtle walking patterns recorded by detailed assessment of the animals’ gait will be identified and validated,” said UFAW. “This may provide a reliable method of detecting current, and predicting future instances of, degenerative joint disease.
“Once validated, pain and lameness biomarker data have the potential to be included within breeding selection objectives, both in the genetic programme for population improvement and in the on-going screening of animals sold to production herds.”