The New Forest Pony Breeding and Cattle Society was notified that a New Forest pony had tested positive n/P1 (heterozygous) for the PSSM1-carrying gene in the summer of 2017. The sire tested n/P1, and testing of all New Forest stallions, at the Society’s expense, began immediately. This statement sets out the position in spring 2018, … Continue reading Polysaccharide Storage Myopathy Type 1 (PSSM1) in New Forest Ponies