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OJVRTM
Online Journal of Veterinary Research©
Volume 26 (7): 529-536, 2022.
Changes by age and gender on histology of tunica
media layer of brachiocephalic artery in pigeons.
Farhad Rahmanifar1, Seyedeh Leili Asadi-Yousefabad2,
Maryam Sharafi3, Arash Alaeddini4,
Sajad Daneshi2
1Department of Basic Sciences, School of Veterinary Medicine,
Shiraz University, 2Young Researchers and Elite Club, Yasuj Branch, Islamic Azad University, Yasuj,
3Department of Statistics, School of Sciences, Shiraz University, 4Department
of Clinical Studies, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
ABSTRACT
Rahmanifar F, Asadi-Yousefabad SL, Sharafi M, Alaeddini A, Daneshi S., Changes by age and gender on histology of tunica media layer of brachiocephalic
artery in pigeons., Onl J Vet Res., 26
(7): 529-536, 2022. In birds, the
brachiocephalic artery is a 2nd branch of aorta which gives rise to common
carotid and subclavian arteries. We describe segmental structural
characteristics of tunica media of brachiocephalic arteries wall of groups of 6
pigeons each sacrificed at 20, 50 and 120 days in male and female birds. Brachiocephalic sections were stained with hematoxylin, eosin and orcein
stain for elastic layers. We found that in 20 day old male pigeons had more elastic
layers in right brachiocephalic wall compared with 120 day old birds (P < 0.05)
and at day 120 more than day 50 (P < 0.05). In females we found no differences.
We found no differences in left side between genders at days 20 and 50 but females
had more layers on both sides at day 120 (P<0.05). In males the decrease in elastic
layers in right side occurs from day 20 to day 50, but increases at day 120.
So, most elastic layers occurred at day 20. The large number of elastic layers and
differences could be related with changes in flight patterns.
Key
words: Brachiocephalic artery, Elastic
layers, Vasa vasorum,
Pigeon
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