Age related changes in histomorphology of the spleen of the Japanese quail (Coturnix coturnix japonica)
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Date
2005-12
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Abstract
The thickness of the capsule in Japanese quails was found to be increased as
the age advanced. In day-old birds, the parenchyma was not differentiated into
red pulp and white pulp. The dominant cell type of the spleen was small to medium
sized lymphocytes. In two week-old birds, the white pulp was represented by a
sheath of lymphocytes in the place of adventitial layer of central arteries. The
development of white pulp was completed in four weeks and it was seen as
follicles and sheath of lymphocytes around the arteries. The gennlnal centres
were present in all the birds aged above four weeks. They were numerous in
sixth and eighth week-old birds and decreased in tenth and twelfth week-old
birds. The ellipsoids were evenly distributed throughout the white pulp in two
week-old birds. But they were more concentrated around the germinal centre in
birds of above four weeks. The red pulp was distributed throughout the
parenchyma in day-old birds. In the rest of the age groups, they were obsenred
as typical venous sinuses and cellular cords.
Description
TNV_IJVA_2005_17(1-2)19-23
Keywords
Veterinary Science