Distribution of t-cells and b-cells in spleen of native duck anas platyrhynca (mallard)‎

الملخص EN

This research includes the histological study of the spleen in the native, wild duck Anas platyrhynca especially presences and distribution of T-cells and B-cells in the spleen tissue.

(10) Healthy birds of duck were used, (5) males and (5) females.

This study clarifies that the spleen of a duck consists of two distinct regions: white pulp and red pulp, the white pulp form the major part of the organ, it's a lymphoid tissue that could be differentiated into (2) types: diffuse lymphatic tissue and nodular lymphatic tissue which found as two distinct forms of nodules.

the first nodule revealed to be regular and ellipsoidal in shape, small in diameter, surrounded with its eccentric artery by a thick layer of connective tissue capsule and show the low percentage, which is B-cells.

The second nodule is irregular and oval in shape, large in diameter, has a thick capsule thinner than the last capsule, without artery inside or outside the nodule, and represented a high percentage so it distributes in almost the spleen, which is This research includes the histological study of the spleen in the native, wild duck Anas platyrhynca especially presences and distribution of T-cells and B-cells in the spleen tissue.

(10) Healthy birds of duck were used, (5) males and (5) females.

This study clarifies that the spleen of a duck consists of two distinct regions: white pulp and red pulp, the white pulp form the major part of the organ, it's a lymphoid tissue that could be differentiated into (2) types: diffuse lymphatic tissue and nodular lymphatic tissue which found as two distinct forms of nodules.

the first nodule revealed to be regular and ellipsoidal in shape, small in diameter, surrounded with its eccentric artery by a thick layer of connective tissue capsule and show the low percentage, which is B-cells.

The second nodule is irregular and oval in shape, large in diameter, has a thick capsule thinner than the last capsule, without artery inside or outside the nodule, and represented a high percentage so it distributes in almost the spleen, which is T-cells.