Njubi D M, Wakhungu J W and Badamana M S 2011: Prediction of Second Parity Milk Yield of Kenyan Holstein-Friesian Dairy Cows on First Parity Information Using Neural Network System and Multiple Linear Regression Methods. Livestock Research for Rural Development. Volume 23, Article #64. Retrieved , from http://www.lrrd.org/lrrd23/3/njub23064.htm