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OJVRTM
Online
Journal of Veterinary Research©
Volume 23 (4):255-261, 2019.
Histological
and immuno-histochemical study of postnatal development
of Bursa
of Fabricius in Turkeys (Meleagris Gallopavo).
Ahmed A Hussein1, Ali F Reshag2*
Department(s) of Anatomy and Histology, College(s) of Veterinary
Medicine, 1University of Diyala, 2University
of Baghdad, Iraq.
ABSTRACT
Hussein AA, Reshag AF., Histological
and immune-histochemical study of postnatal development of Bursa of Fabricius in Turkeys (Meleagris Gallopavo), Onl J Vet Res., 23 (4):255-261, 2019. One week and 1, 2
and 7 month old turkeys were sacrificed and cloacal Bursa Fabricius
tissue excised for histology and Immunohistochemistry. At 1 week, parenchyma was undistinguishable from
cortex and medulla with pseudo stratified columnar and simple cuboidal
epithelium. At 1 month, parenchyma
differentiated from cortex and medulla by a cortical medullary junction with
follicular and inter-follicular epithelium. By 2 months, structures were similar to 1 month. By 7 months, we observed involution and presence of
cyst like structures in cortex and medulla. We found mature B lymphocytes
within parenchyma of bursa at all ages. In turkeys, bursae are well developed
by 1 month but may lose an immune role after puberty.
Key words: Bursa fabricus, turkey, B
lymphocytes, cortex, Immunohistochemistry.
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