Das J M, Dutta P, Deka K C, Biswas R K, Sarmah B C and Dhali A 2009: Comparative study on serum macro and micro mineral profiles during oestrus in repeat breeding crossbred cattle with impaired and normal ovulation. Livestock Research for Rural Development. Volume 21, Article #72. Retrieved , from http://www.lrrd.org/lrrd21/5/das21072.htm