interfollicular การใช้

• Key clinical signs as well as gross and microscopic features that are most useful for differentiating Marek s disease from lymphoid leukosis and reticuloendotheliosis include ( 1 ) Age : MD can affect birds at any age, including 5 % in unvaccinated flocks; ( 4 ) Potential nerve enlargement; ( 5 ) Interfollicular tumors in the bursa of Fabricius; ( 6 ) CNS involvement; ( 7 ) Lymphoid proliferation in skin and feather follicles; ( 8 ) Pleomorphic lymphoid cells in nerves and tumors; and ( 9 ) T-cell lymphomas.