The development of the snakehead (Channa striata) aquaculture industry depends on the development of formulated feeds. The previously showed that soybean meal (SBM) could replace up to 40% of the fish meal (FM) in formulated feeds for snakehead as long as phytase and essential amino acids (EAA) were added. In the current study, we investigated the use of rice bran (RB) to replace FM and SBM in snakehead diets and a feeding attractant solution to increase the percentage of SBM that could be incorporated. In Experiment 1substituted 0% (control), 10, 20, and 30% of RB and found no differences in survival or growth among any of the treatments, except that the 10% treatment had higher growth than did the control. In Experiments 2substituted 0% (control), 50, 60, or 70% of FM with SBM (and added EAA and phytase) plus a feeding attractant solution. The study found that either 70% substitution was feasible (based on growth data), 60% was feasible (based on food conversion ratio data), and 50% was feasible (based on economic benefit).
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