Fallon, R. J., F. J. Harte, and D. Harrington. 1987. “The Effect of Calf Purchase Weight, Serum IG Level and Feeding Systems on the Incidence of Diarrhoea, Respiratory Disease and Mortality”. The Bovine Practitioner, no. 22 (November):104-6. https://doi.org/10.21423/bovine-vol0no22p104-106.