Evaluation of the production performance of DGT65 commercial layer chickens
This study was conducted at the Pho Yen Poultry Research Station from January 2024 to May 2025 with the objective of evaluating egg production performance and egg quality of the commercial laying chicken line DGT65. The experiment was arranged in a completely randomized design with one factor and three experimental groups, including: Group 1: 300 DG63 hens; Group 2: 300 DT51 hens; and Group 3: 300 DGT65 hens. The results showed that the survival rate across production stages was high, ranging from 96.05% to 96.44%. Body weight at the onset of lay was 1,592.89 g. Egg production per hen up to 72 weeks of age reached 280.86 eggs (P<0.05), and feed consumption per 10 eggs was 1.51 kg. Heterosis for egg production and feed consumption per 10 eggs was 1.63% and −1.70%, respectively. Egg weight at 38 weeks of age was 58.98 g, and yolk proportion reached 29.70%. These results indicate that DGT65 chickens have good reproductive performance.
