6B. Nielsen. Dairy bull calves as a resource for organic beef production: a farm survey in Denmark[J]. Livestock Production Science, 2003,75 (3) : 245-255.
7J M Sargeant, T E Blackwell,et al. Production practices, calf health and mortality on six white veal farms in Ontario[J]. Can J Vet Res, 1994,58(3) :189- 19.
8C. Faustman, M. C. Yin, D. B. Nadeau. Color Stability, Lipid Stability, and Nutrient Composition of Red and White Veal[J]. Food Science, 1992,57 (2) : 302-304.
9J. Levesque. Dietary supplements of folic acid: blood and growth responses of white veal calves[J]. Livestock Production Science, 3003,34 (1-2) : 71-82.
10A. C. Beynen, L. G. M. Van Gils. Increased concentration of plasma cholesterol in veal calves fed soyabean lecithin [J]. Cellular and Molecular Life Sciences (CMLS) , 1983,39 (5) : 492-493.