Xác định mức protein thích hợp trong khẩu phần nuôi gà Bang Trới giai đoạn hậu bị
To determine the appropriate protein level in the diet of Bang Troi chickens during the rearing period (8-20 weeks old), a completely randomized one-factor experiment was designed. This experiment investigated the effect of different protein levels during the reserve period 13.5%, 14.5%, and 15.5%, on the technical indicators for breeding Bang Troi chickens. The experiment involved 900 Bang Troi chickens at 8 weeks old, divided into 3 groups, each group corresponding to a treatment of 300 chickens, with 3 replications (100 chickens/replication), monitored up to 72 weeks of age, implemented at the Center for Bee Research and Animal Technology Transfer. During the reserve stage, the chickens in the different groups were fed different protein levels, after this stage, transitioned to the breeding stage, all the groups were fed the same levels of protein to test the effect of different protein levels on the reproductive stage. The results showed that different protein levels in the resever stage had an effect on the growth and reproductive capacity of Bang Troi chickens raised for breeding. In which, in experimental batch 2 with a 14.5% reser stage protein level, the best results were obtained in most of the most important indicators for raising chickens for breeding purposes such as average egg productivity reached 103.50 eggs/hen/72 weeks, feed consumption reached 4.19 kg/10 eggs, average embryonated egg rate reached 92.5%, hatching rate reached 82% and survival rate of 9-20 weeks of age reached 95.33%. Therefore, it can be concluded that a protein level of 14.5% is most suitable in the diet of Bang Troi chickens during the reserve stage.
