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OJVRTM
Online Journal of Veterinary Research©
Volume
21(1):1-7, 2017.
Reference kidney volume and glomeruli values in male one-humped camels (Camelus dromedarius).
Sara Monjezi1, Ahmadali Mohammad Pour2, Morteza
Behnamrasouli3
1Comparative Histology, 2Basic
Sciences, Faculty of Veterinary Medicine, 3Biology, Faculty of
Science Ferdowsi University of Mashhad, Mashhad, Iran
ABSTRACT
Monjezi S, Mohammad Pour
A, Behnamrasouli M., Reference kidney volume and
glomeruli values in male one-humped camels (Camelus dromedarius), Onl J Vet Res (21)
1-7, 2017. Right and left
kidneys of 6 adult male one humped camels (Camelus
dromedarius) were excised at slaughter. Volumes for kidney, cortex, medulla and pelvis were
deduced by Cavalieri’s point counting principle.
Kidney tissue samples were used to calculate total glomeruli count and size by
microphotography of adjacent sections. Mean number of glomeruli in each kidney
was estimated by a physical dissector and mean glomerular volume as total
volume of glomeruli/number of glomeruli. Mean number of glomeruli in the right
kidney were 12.40×106 and left kidney 14.73×106. Mean
number of glomeruli using the dissector system in the right kidney were
17±12.40 ×106 and left 17.73±14.73 ×106 with mean volumes
of 966±134 ×103 and 767±56.0 ×103 µm3,
respectively. Percent volumes of the cortexes were 45.46% and medullae 53.42%
in the right kidney, and 47.90 % and 51.11% respectively, in the left kidney.
None of the values were significantly different. The thick medulla represents a
long loop of Henle’s which increases concentration of urea and salt
at the tip of the papilla increasing water reabsorption producing a concentrated urine. The low number of glomeruli and volume
in camels reduces glomerular filtration rate urine production which allows
adaption to desert like environments.
Key words: Reference values, stereology, kidney,
one-humped camel.
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