Đặc điểm hình thái túi Fabricius của vịt cổ lũng từ 3 đến 9 tuần tuổi

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Tác giả: Văn Linh Lê, Bá Tiếp Nguyễn, Thị Minh Phương Nguyễn, Thị Đức Tám Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2020

Mô tả vật lý: tr.60

Bộ sưu tập: Metadata

ID: 330527

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Nghiên cứu về biến đổi khối lượng, kích thước đại thể và kích thước vi thể túi Fabricius của vịt CổLũng giai đoạn 3 đến 9 tuần tuổi đã được thực hiện tại Khoa Thú y, Học viện Nông nghiệp Việt Nam.Kết quả nghiên cứu cho thấy túi Fabricius có dạng gấp nếp hình trụ, nằm phía trên đoạn cuối của trựctràng. Khối lượng của túi này ở vịt 6 tuần tuổi cao hơn ở vịt 3 tuần tuổi và 9 tuần tuổi. Không có sựkhác biệt về chiều dài của túi Fabricius ở vịt 6 tuần tuổi và 9 tuần tuổi. Túi Fabricius bao gồm lớp vỏ sợivới 3 gấp nếp sâu, chia túi thành các thùy chứa nhiều nang lympho. Chiều dài và chiều rộng của nanglympho, chiều dài và chiều rộng của miền tủy đạt giá trị cao nhất ở vịt 9 tuần tuổi. Tuy nhiên diện tích vàchu vi của nang lympho cao nhất ở vịt 6 tuần tuổi. Như vậy, sự thoái hóa mô lympho của túi Fabriciusở vịt Cổ Lũng có thể bắt đầu sau 6 tuần tuổi và trước 9 tuần tuổi. Điều này gợi ý cho những nghiên cứutiếp theo về đáp ứng miễn dịch và quy trình phòng bệnh truyền nhiễm cho giống vịt nàyThe objective of this study aimed at identifying the changes of weight, gross and histological features of the Fabricius bursa of the Co Lung ducks from 3 to 9 weeks old. The studied result showed that the Fabricius bursa shape of the Co Lung ducks was cylindrical folds, located on the end segment of rectum. The Fabricius bursa weight of ducks at 6 weeks old was heavier than that of ducks at 3 and 9 weeks old. There was no different in the length of the Fabricius bursa of ducks at 6 and 9 weeks old. The Fabricius bursa consisted of a fibrous capsule with 3 folds that divided into the lobes, each contained numerous lymphoid follicles. The thickness of fibrous capsules, length and width of lymphoid follicles, length and width of germinal centers were highest in the ducks at 9 weeks old. However, area and perimeter of lymphoid follicles of Fabricius bursa of the ducks at 6 weeks old were highest. The studied results suggested that the Fabricius bursa of the Co Lung duck breed could be degraded after 6 weeks old and before 9 weeks old. The result of this study may be considered as a basis for further studies on immune response and disease prevention for this duck breed.

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