1. R. Ewing, “Poultry Nutrition” 5th, The Ray Ewing Company, California (1963).
2. E. Takabatake, Feed additives and drugs for animal use, Eisei Kaaaku, 27: 127 (1981).
3. T. Onodera, S. Inoue, A. Kasahara and Y. Oshima, Experimental studies on sulfadimethoxine in fowls, Jap. J. Vet. Sci., 32: 275 (1970).
4. H. Terada, M. Asanoma, H. Tubauchi, T. Ishihara and Y. Sakabe, Studies on residues and depletions of sulfonamides in chicken, Annual Report of Nagoya City Health Research Institute, 30: 42 (1984).
5. T. Nagata, M. Masanobu and K. Toriumi, Transfer of pyrimethamine, sulfadimethoxine and difurazone into the eggs by oral administrations, Annual Report of Chiba Prefecture Institute of Public Health, 12: 45 (1988).