Proceeding the 13^th Animal science congress of the Asian-Australasian association of animal production societies

         The trials with 210 females for each and divided into 3 flocks for each breed. After observing one year of laying, the results showed that reproduction performance of Khaki is best, following is crossed breed F1, worst one is Triet Giang.

         Khakicampbell: The first egg laid: 134.67; peak production at 208.67 days; Culling rate after the first laying egg: 3.81%; Egg per hen day: 259.24; Laying rate: 71.25%; Average egg weight: 65.19 grs; Gross egg weight: 16.9 kgs per hen day; Feed conversion ratio: 2.92 and 1.9 kg/10 eggs.

         Crossed breed F1: The first egg laid: 122.33; peak production at 187 days; Culling rate after the first laying egg: 4.29%; Egg per hen day: 253.31 (H= 1.5%); Laying rate: 69.62%; Average egg weight: 62.45grs (H=1.4%); Gross egg weight: 15.82 (H= 2.69%) kgs per hen day; Feed conversion ratio: 3.06 (H= -4.08%) and 1.91 kg/10 eggs (H= - 2.3%).

Tải file Comparison of reproduction of Khakicampbell, Triet Giang and crossed breed F1 (Khakicampbell female x Triet Giang drake) raising in the garden of Thai Nguyen tại đây