6Papaioannou et al. , 2002b D. S. Papaioannou, S. C. Kyriakis, A. P ap asteriadis, N. Roumbies, A. Yannakopoulos and C. Alexopoulos, A field study on the effect of in - feed inclusion of a natural zeolite (clinoptilolite) on the health status and performance of sow and their litter, Research in Veterinary Science72 (2002), pp. 51 - 59
10Mampton F A, Fishman P H. The application of natural zeolites in aninal science and aquaculture [ J ].Journal of Aninal Science, 1977, 45:1188 - 12030
