Ảnh hưởng của các hàm lượng khác protein khác nhau trong thức ăn đến tăng trưởng và tỷ lệ sống trong nuôi thương phẩm cá chình hoa (anguilla marmorata) giai đoạn 40g đến 150g tại hà nội

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Tác giả: Minh Tuyết Hoàng, Văn Hùng Lại

Ngôn ngữ: vie

Ký hiệu phân loại: 639.376 Hunting, fishing, conservation, related technologies

Thông tin xuất bản: Khoa học Công nghệ Thủy sản, 2014

Mô tả vật lý: 207-211

Bộ sưu tập: Metadata

ID: 655037

This study was conducted to evaluate growth and survival rate of Marbled eel (Anguilla marmorata) which its size ranges from 40 to 150g when using feed with different protein contents in artificial condition. This experiment was designed in 2m3 composite tanks and replicated 3 times. Fish was reared with 80 individual/tank density. Artificial feeds contained different protein contents (40 percent, 45 percent and 50 percent) were used to access the effect of feeds in grow-out Marbled eel. During this period, environment factors such as temperature, pH and DO were suitable for the growth and development of Marbled eel. The result showed that there was no significant difference about absolute and specific growth rate between treatments 45 percent and 50 percent (P 0,05) but different from treatment 40 percent (P 0,05). The highest survival rate obtained when using feed with 45 percent protein content (91, 67 percent) and different significantly with treatment 40 percent (87,3 percent) (P 0,05). However, there was no significant difference between 45 percent and 50 percent (P 0.05).
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