Optimization Of Selection For Multiple Traits Using An Economic Model For Layer Chicken Enterprise

Abstract This paper discussed how to optimize production traits for two layer breeds in Egypt. The first breed is indigenous Fayoumi and the second exotic Leghorn. Both breeds have their different performances and each breed was preferred over the other for some particular traits. By crossing the two breeds the crossbreds could benefit from the strengths of the purebreds for particular traits. The economic model has been developed for commercial layer enterprise in Egypt to determine the economic value of genetic change for various traits. The economic value was then used in selection index to optimize selection for multiple traits. The economic model was also used to compare the performance of purebreds crossbreds and the hybrid line. In general the profits in F1 crossbred and hybrid line were higher than those in Leghorn and Fayoumi at following values of 2065 1987 1681 and 1763 respectively.