Protein requirements of 12 to 16-weeks old Lophura nycthemera.

In order to study the effects of different protein levels on productive performance of twenty 12 to 16 weeks old Lophura nycthemera.They were randomly divided into five groups with four replicates per group according to one factorial arrangement of completely randomized design.The Lophura nycthemera were fed with five diets with different crude protein levels of corn-rishmeal-soybean meal.The protein level was 22.19%,23.19%,24.19%,25.19%,26.19% for group A,B,C,D and E respectively.The results showed that raising protein level of diets did not result in the increase of daily gain,the decrease of the F/G,and it could not play important role in the growth performance at the stage of 12 to 16 weeks old Lophura nycthemera.Crude protein with nutrient levels of daily diets were as follow: metabolism energy and crude protein was 11.3 MJ/kg and 23.19% respectively.