Bổ sung polysaccharides chiết xuất từ rong bún (enteromorpha intestinalis) vào thức ăn ương tôm thẻ chân trắng (litopenaeus vannamei)=Use of Polysaccharides Extracted from the Seaweed (Enteromorpha intestinalis) in feed for Nursering of White-leg Shrimp (Litopenaeus vannamei)

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Tác giả: Thị Ngọc Anh Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học Nông nghiệp Việt Nam, 2025

Mô tả vật lý: tr.289-298

Bộ sưu tập: Metadata

ID: 474192

Thêm vào giỏ

Nghiên cứu được thực hiện nhằm đánh giá ảnh hưởng của việc bổ sung hỗn hợp polysaccharides ly trích từ rong bún (Enteromorpha intestinalis) ở các mức khác nhau vào thức ăn lên tăng trưởng, tỉ lệ sống, hiệu quả sử dụng thức ăn và khả năng chống sốc của tôm thẻ chân trắng giai đoạn giống. Tôm thẻ chân trắng (khối lượng 0,019 ± 0,005g) được cho ăn thức ăn không bổ sung hỗn hợp chất chiết từ rong bún là nghiệm thức đối chứng, ở các nghiệm thức còn lại tôm được cho ăn với các mức bổ sung hỗn hợp chất chiết lần lượt là 0,4% và 0,8%. Sau 30 ngày ương, kết quả cho thấy việc bổ sung 0,4% và 0,8% chất chiết từ rong bún vào thức ăn của tôm giúp tôm tăng trưởng nhanh hơn, có hệ số tiêu tốn thức ăn, hiệu quả sử dụng protein và khả năng chống sốc độ mặn tốt hơn so với đối chứng. Tóm lại, kết quả nghiên cứu cho thấy bổ sung 0,4% chất chiết từ rong bún vào thức ăn của tôm có thể giúp nâng cao hiệu quả của việc ương tôm.The study was conducted to evaluate the effects of dietary supplementation of polysaccharides extracted from the seaweed (Enteromorpha intestinalis) at different levels on the growth, survival rate, feed utilization efficiency, and stress resistance of white-leg shrimp (Litopenaeus vannamei) during the nursery phase. White-leg shrimp (initial weight 0.02±0.005 g) were fed a control diet without the seaweed extract, while the other treatments included diets supplemented with the extract at levels of 0.4% and 0.8%. After 30 days of rearing, the results showed that shrimp-fed diets supplemented with 0.4% and 0.8% of the seaweed extract exhibited faster growth, better feed conversion ratio, higher protein efficiency, and improved salinity stress resistance compared to the control. In conclusion, the findings indicate that supplementing shrimp feed with 0.4% Enteromorpha intestinalis extract enhanced the efficiency of shrimp nursery.

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