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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 Henles 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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