- Myophosphorylase deficiency (glycogen storage disease Type V) in a herd of Charolais cattle in New Zealand: confirmation by PCR-RFLP testing. Johnstone, A.C., McSporran, K.D., Kenny, J.E., Anderson, I.L., Macpherson, G.R., Jolly, R.D. New Zealand veterinary journal. (2004)