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OJVRTM
Online Journal of
Veterinary Research©
Volume 20(4):264-270, 2016.
Radiographic bone
cortex diameters of metacarpus-tarsus in Holstein-Fresian
cattle.
Alireza Raayat-Jahromi, Abdolhamid Meimandi-Parizi, Nooshin Derakhshandeh, Mohsen Zarrinkamar
Department
of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz,
Iran.
ABSTRACT
Raayat-Jahromi A, Meimandi-Parizi
A, Derakhshandeh N, Zarrinkamar
M., Radiographic bone cortex diameters of metacarpus-tarsus in Holstein cattle,
Onl J Vet Res., 20(4):264-270, 2016. Fore and hind limb radiographic cortex diameters of
metacarpus and metatarsus in Holstein-Fresian
cattle are described. Twelve mature and immature metacarpi and
metatarsi bones were measured post
mortem. Feet of 12 live calves, heifers and adults were also measured. Radiographs
were taken in palmar-dorsal metatarsal bone views. Bone diameter (BD), cortical
thickness (CT), and cortex/diameter ratio (C/D) were measured in metacarpal and
metatarsal diaphysis, proximal and distal metaphysic. No correlation was found
between cortical thickness of diaphysis and metaphyses in live cattle of different ages. In adult
and heifers a correlation was found between bone diameter in all age groups in diaphysis and metaphyses,
except in calf that was observed in proximal and distal metaphysis. In live
cattle, the only considerable correlation in C/D index was seen in diaphysis
and distal metaphysis of heifers. Also, meaningful correlation was observed
between C/D index and cortical thickness in diaphysis and both metaphyses in all age groups. In
postmortem collected bones, bone diameter had significant correlation in mature
and immature metacarpus and metatarsus proximal and distal metaphysis. Some normal values and factors of bone
diameter and cortices in the present study
can be used to diagnose possible abnormal diameters, bone diseases or disorders
in cattle.
Key Words: Bone and cortex diameter, C/D ratio, metacarpus,
metatarsus, cattle.
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