Evaluation OF EGG PRODUCTION AND EGG WEIGHT OF ISA BROWN AND BOVANS BROWN STRAINS AND PREDICT THE VALUES BY FITTING THE REGRESSION MODELS

Abstract

Egg production and egg weight are the most important traits for the layers. Mathematical models are used to predict values from incomplete or partially recorded data and reduce confusion in calculating the yield. Therefore, a study was conducted to know the production performance of both Bovans Brown and Isa Brown strains and predicted their yield using regression models. The present study was conducted to know the egg production and egg weight of Bovans brown and Isa Brown layer strains on six farms in the Chattogram area. The average egg production and egg weight of Bovans brown were obtained at 307.971± 7.378 egg/hen/year and 63.973±0.961 g/egg and for ISA brown the average egg production and egg weight were obtained at 303.403±2.936 egg/hen/year and 63.361±0.8739 g/egg, respectively. The R2 value was used to compare the model performance. The predicted value of the average egg weight of both strains was higher than the actual value. But the predicted value of the average egg production per hen/year was similar to the actual value in both strains.