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Articles by M.Z.I. Khan
Total Records ( 2 ) for M.Z.I. Khan
  Kh. N. Islam , M.Z.I. Khan , M.S.I. Siddiqui , M.R. Islam , N.S. Lucky , M.K. Hossain and G.N. Adhikary
  The anatomical studies of the kidneys of Rhode Island Red (RIR) and White Leghorn (WLH) chicken during their postnatal stages of growth and development were investigated in the present study. The chicken were grouped into day old, day 30, day 90, day 180 and day 360.The gross structures of the kidney (weight, relative weight, length, breadth and thickness) during their growth period were estimated by using the measuring balance and scale. The histological structures of the kidney (the nephrons, the number of glumerulae and the presence of collagen and elastic fibers within the kidney) were also studied by light microscope using hematoxylin and eosin stain, Van Gieson and Verhoeff`s stain. The gross structures were significantly higher in the RIR than the WLH chicken whereas the histological structure (number of glomerulae) were higher in WLH than RIR chicken. From these data it may be suggested that these differences did not depend on the developmental stages of growth and development but depend on the genetic variation of the chicken.
  M.L. Rahman , M.R. Islam , M. Masuduzzaman and M.Z.I. Khan
  The different parts of digestive system of one-day old, 30 days, 90 days and 180 days old deshi chickens were taken in fresh state and stained with hematoxylin and eosin (H and E). The aim of this study was to investigate the distribution of lymphocytes in the different histological layers of the digestive tract of deshi chicken at the different ages of postnatal growth and development. In the present study the Intraepithelial Lymphocytes (IELs) were not abundant in the upper segments of the digestive tract (oesophagus, crop, proventriculus and gizzard), however these immunocompetent cells were abundantly found in the distal part of the digestive tract (duodenum, jejunum, Meckel`s diverticulum, ileum, caecum, cecal tonsil and colorectum). The population of IELs in the distal part of the tract were found higher from day 90 to day 180 of postnatal period of development, however in the jejunum, caecum and ceacal tosil the frequency were found abundant at day old ages only. The lamina propria of the different segments of digestive tract contain isolatory and diffuse lymphocytes. In addition to these isolatory lymphatic nodules and aggregated lymphatic nodules were present and there were higher in frequency at day 90 and at day 180 of postnatal ages. The lymphocytes were also distributed scatteredly in the submucosa and tunica muscularis in all the stages of development. These results suggest that the development of the population of lymphocytes in the postnatal period vary with the different segments of the digestive tract concerned and aging of chicken of Bangladesh.
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