A histomorphometric study on age-related changes in selected lymphoid structures of Chukar partridge (Alectoris chukar)
Authors
Abstract:
Background: Chukar partridge (Alectoris chukar) is raised for its highly nutritional and relatively expensive meat. Aims: This study evaluates selected lymphoid organs of juvenile and peripubertal Chukar partridges using a histomorphometric approach. Methods: Thirty one-day-old male and female Chukar partridges were included in the study. Samples were taken from cloacal bursa, thymus, spleen and the caecal tonsil (CT) as well as oesophageal and pyloric tonsils at 80, 100, and 120 days (peripuberty) of age. Ten transverse sections were then taken from each sample of each bird and stained with haematoxylin and eosin (H&E;) in order to measure plicae height and follicular width as well as thickness of follicular cortex and medulla in cloacal bursa, villus height and nodular unit (ND) width and height in CT, lobular width as well as lobular cortex and medullar width in thymus, white pulp width in spleen and follicular width in oesophageal and pyloric tonsils, a linear graticule was used, the number of follicles in each plicae in cloacal bursa and the number of follicles in each ND in CT were determined under a light microscope. Results: Drastic changes in histomorphometrical parameters of lymphoid tissues were observed in peripuberty, prominently in cloacal bursa and thymus as demonstrated by the significant decrease in all assayed parameters. Involutionary changes were also observed in oesophageal and pyloric tonsils. Conclusion: Involution occurs in bursa and thymus of partridges around puberty rather than their juvenile stages. These changes are also appreciable in CT, oesophageal and pyloric tonsils, whereas the spleen keeps the same histological features before and around puberty.
similar resources
Parasitosis of the chukar partridge, Alectoris chukar in North Iraq.
OBJECTIVE The aim of this study was to establish the identity of the parasitic communities of the chukar partridge from Iraq as well as reporting on the prevalence and intensity of various infections from several localities and comprising both sexes. METHODS Twenty-nine live adult chukar partridge (Alectoris chukar) were obtained from several localities across the northern provinces of Iraq. ...
full textEffect of halofuginone (Stenorol) on Chukar partridge (Alectoris chukar).
This study was conducted to assess the effect of the coccidiostat halofuginone (Stenorol) on growth, feed consumption, and survival of Chukar partridge. Halofuginone was fed to three replicates (14 chicks per replicate) of chukar chicks from 2 to 7 d of age at levels of 0, 1.5, 3.0, 6.0 and 12 ppm. Mortality from 2 to 7 d was 0, 0, 0, 11, and 21 birds, respectively, by treatment. Seven-day body...
full textGlobal warming, Bergmann's rule and body mass ± are they related? The chukar partridge (Alectoris chukar) case
Using museum specimens collected in Israel during the second half of the 20th century, no support was found for the hypothesis that body mass and tarsus length of chukar partridges Alectoris chukar has changed as a result of global warming. Body mass showed ̄uctuations during the year, reaching a maximum in late winter and spring and a minimum in summer. Bergmann's rule predicts that in warmblo...
full textHistomorphogenesis of the Chukar Partridge (Alectoris Chukar) Knee Joint
Introduction: There are differences in the pattern of the knee joint formation of the studied species. According to the small number of studies which focused chronologically on the avian knee histomorphogenetic events, its “morphogenetic pattern” is hard to be proposed. The present work was designed to identify the sequential events of the knee formation in the partridge embryo. Regarding to di...
full textLiver Histogenesis in Chukar Partridge (Alectoris Chukar) Embryo
Introduction: In chick embryo, endodermal component of the liver becomes split into 2 diverticula in a short time. The anterior diverticulum lies to the left of the ductus venosus and the posterior one to its right side. As the liver primordium grows, it is invaded by the embryonic veins. Based on the different incubation time periods and evolutionary origin of avian species...
full textMy Resources
Journal title
volume 20 issue 3
pages 186- 191
publication date 2019-09-22
By following a journal you will be notified via email when a new issue of this journal is published.
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023