STUDY ON DIFFERENT ECONOMIC TRAITS OF COBB500 BOILER PARENTS AND THEIR PREDICTION

Abstract

The study was undertaken on broiler parents, Cobb500 in the Gausia poultry and hatchery Ltd. at Chittagong, from October to November, 2010 to know the productive, reproductive traits and predict their values. The data which are used in this study are collected within a short period of time, so the study is not complete at all. It requires various logistic model for the estimation of predicted total yield accurately. By using the parameters of linear regression equation four economic traits (egg production, egg weight, live weight and feed intake) were predicted. The mean with standard deviation was analyzed by using Completely Randomized Design (CRD) in SAS (2000). R2 fit statistic was used to compare model the actual and predicted values. The age wise (from24 to 65 weeks) actual calculated value for the four traits are 93.55±.016 (feed in take), 603.12±.035 (live weight), 20.67±.013 (egg), 158±.214 (egg weight). Accordingly, the predicted values for these four traits are 92.99±.0005 (feed intake), 856.47±.003 (live weight), 52.92 ±.24 (egg), 227.367 ±.0136 (egg weight). For the trait feed intake the predicted and actual value are close in their relation but for other three traits (live weight, egg no, egg weight) the predicted values are higher than actual value. The study may help to reduce the costing for record keeping and calculated the total yield of different traits