1. Bäckström, J.K., Crenshaw, T., Shenkman, D., 1988. Gastric ulcer in swine: Effects of dietary fiber, corn particle size and pre-slaughter stress. 6th International Congress on Animal Hygiene, Skorra, Sweden, June 1988, 538–542.
2. Effect of feeding regimen on gastric ulceration of the pars oesophagea of intensively raised pigs;Blackshaw;Australian Veterinary Journal,1980
3. Effects of feed processing method and diet form on the incidence of esophagogastric ulcers in swine;Chamberlain;J. Anim. Sci.,1967
4. CVB, 1993. Net energy of raw materials for pigs. CVB-documentation report nr. 7 (in Dutch).
5. Elbers, A.R.W., Hessing, M.J.C., Tielen, M.J.M., Vos, J.H., 1995a. Growth and oesophagogastric lesions in finishing pigs offered pelleted feed ad libitum. Vet. Rec. 136, 588–590.