Prediction of body weight from body measurements in Pirlak Lambs

Determination of body weight from body measurements with nonlinear y = ax b model in Pırlak lambs was aimed in this study.140 heads Pırlak lambs, born at Afyon Kocatepe University Animal Research and Application Center in 2008 -2009 lambing seasons were used.They were measured biweekly until reaching yearling age.The body measurements used were wither height (WH), chest circumference (CC), chest depth (CD), chest width (CW), shank circumference (SC), rump width (RW) and body length (BL).Coefficient of determination (R 2 ) were used to compare the fitting of model to body measurements.The squared-R orders was RW>CC>WH>CW>BL>CD>SC.The best fitted body measurement model was that of rump width.The prediction model using rump width was found to be y = 0.1993959X 2.0051241 in Pırlak lambs.