Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
Figure 1: Photograph showing the in-situ position of Bursa of Fabricius (black arrow) of 1st week old Pati duck
Figure 2: Photograph showing the atrophied Bursa of Fabricius on 24th week old of Pati duck
Table 1: Value of Bursa of Fabricius of Pati duck at different age group (Mean±SEM)
Table 2: Histochemical characterization of bursa of fabricius of Pati duck
Figure 3: Photomicrograph showing the simple columnar epithelial tuft (a), pseudostratified columnar epithelium, cortex (c), medulla (d), undifferentiated epithelial layer (e), capillary layer (f) and lamina propria (g) of Bursa of Fabricius of 1st week old Pati duck (H& E, X10)
Figure 4: Photomicrograph showing pseudostratified columnar epithelium (a), simple columnar epithelial tuft (b), lamina propria (c), cortex (d), undifferentiated epithelial cell layer (e), capillary layer (f) and medulla (g) of Bursa of Fabricius of 16th week old Pati duck (H& E, X40)
Figure 5: Photomicrograph showing the collagen fibers (black arrow) of Bursa of Fabricius of 1st week old Pati duck (Van Gieson’s method, X40)
Figure 6: Photomicrograph showing the elastic fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Hart’s method, X40)
Figure 7: Photomicrograph showing the reticular fibers (black arrow) of Bursa of Fabricius of 16th week old Pati duck (Gomori’s method, X40)
Figure 8: Photomicrograph showing the nerve fibers (black arrow) of Bursa of Fabricius of 4th week old Pati duck (Bielschowsky’s method, X10)
Figure 9: Photomicrograph showing the alkaline phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 4th week old Pati duck (Gomori’s, X10)
Figure 10: Photomicrograph showing the acid phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (c), cortex (d) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Gomori’s, X10)
Figure 11: Photomicrograph showing the adenosine tri phosphatase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 16th week old Pati duck (Lead method, X10)
Figure 12: Photomicrograph showing the non specific esterase activity in follicle associated epithelium (a), undifferentiated epithelial cells (b), medulla (d), cortex (c) and lamina propria (e) of Bursa of Fabricius on 1st week old Pati duck (1 Naphthyl acetate method, X10)
Figure 13: Scanning electron microphotograph showing the lymphoid follicle (white arrow) and epithelium (black arrow) of Bursa of Fabricius bar=10µM, 555X
Figure 14: Scanning electron microphotograph showing the lymphocytes and connective tissue fibers of lymph node BAR=2µm, 6.01KX
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