Dr. P.H. VataliyaASHISH KUMAR CHANDULAL PATEL2017-08-012017-08-012008http://krishikosh.egranth.ac.in/handle/1/5810026872The body weight, production and reproduction records of Holstein Friesian cattle were collected from H.F. farm, Anand Agricultural University, Anand from 1992 – 2007. Total 278 body weight records at birth weight, body weight at 3, 6 and 12 months under 32 sires and daily milk production records for 209 lactations from 130 cattle were collected. Data up to fifth lactations were collected for each animal. The records were analyzed using least squares analysis procedures incorporating Period, Seasons of calving, parity etc. non-genetic factors in statistical model. The Mixed Model Least-Squares and Maximum Likelihood Computer Programme PC 2 Version of Harvey (1990) was used to estimate genetic parameters from adjusted data by paternal half sib correlation method. Gamma function of Statistical Packages for Social Sciences programmeenThesis