1. Garg, M.R., Bhanderi, B.M., Sherasia, P.L. 2005. Assessment of adequacy of macro and micro mineral content of feedstuffs for dairy animals in semi-arid zone of Rajasthan.Animal Nutrition Feed Technology.5:9–20.
2. Kearl, L.C.1982.Nutrient Requirements of Ruminants in Developing Countries.International Feedstuffs Institute, Utah State University, UMC 46, Logan, Utah 84322 USA.
3. McDowell, L.R.1992.Minerals in Animal and Human Nutrition.Academic Press. San Diego, CA pp. 49–51.
4. N.R.C.2001.Nutrient Requirements of Dairy Cattle, 7thRevised edn. National Academy of Sciences, Washington, DC.
5. Underwood, E.J., Suttle, N.F. 1999.The Mineral Nutrition of Livestock.3rded. CAB International Publishing Co. U.K.