The study was allocated according to a completely randomized design with four treatments (ME2650, ME2750, ME2850, ME2950), and 10 replications with 40 pens and 4 laying hens/pen. Results showed that the different levels of ME did not affect egg production (P>0,05), but egg weight of laying hens was significantly improved in ME2950 as compared with the ME2650 diet (P=0,01). Feed intake was lowest in the ME2950 (104,5 g/head/day) and highest in the ME2650 (114,2 g/head/day). There were no significant differences in egg quality parameters among treatments, but egg yolk proportion, yolk color were improved when increasing ME level in the diets. Culling body weight was lower for hens fed ME2650 diet (1,96 kg/hen) compared to for hens fed higher ME diets (1,98-2,02 kg/hen). It may be concluded that the ME 2850 and ME 2950 laying hen diets improved egg weight and quality. Moreover, the culling body weight of laying hens also was more suitable to the demand of buyer for slaughter.
Tạp chí khoa học Trường Đại học Cần Thơ
Lầu 4, Nhà Điều Hành, Khu II, đường 3/2, P. Xuân Khánh, Q. Ninh Kiều, TP. Cần Thơ
Điện thoại: (0292) 3 872 157; Email: tapchidhct@ctu.edu.vn
Chương trình chạy tốt nhất trên trình duyệt IE 9+ & FF 16+, độ phân giải màn hình 1024x768 trở lên