An anatomical study of the skull, the dorsal and ventral nasal conchal bullae and paranasal sinuses in normal Noma horses: Computed tomographic anatomical and morphometric findings
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- Kenji Kutara
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Tetsushi Ono
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Keiichi Hisaeda
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Yoichi Inoue
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Chizuka Henmi
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Kadekaru Sho
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Akihiro Ohnishi
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Emi Ohzawa
- Noma Horse Preservation Society 8 Noma Imabari Japan
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- Yumi Une
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Eri Iwata
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Kenichi Shibano
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Taketoshi Asanuma
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
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- Hitoshi Kitagawa
- Faculty of Veterinary Medicine Okayama University of Science Imabari Japan
説明
<jats:title>Abstract</jats:title><jats:p>Noma horses have the smallest body size among native Japanese horses and are classified as pony breeds by their size. Additionally, the Japanese horse breeds are classified into a single lineage, which includes Mongolian horses. Great intraspecific differences reportedly exist in the head shapes of domesticated horses, which have been investigated in various horse breeds. The present study aimed to evaluate the size of the nasal conchal bullae, and the paranasal sinuses of Noma horses in relation to the skull dimensions using computed tomography. Reconstructed images of the heads of five adult Noma horses were used. Skull and paranasal sinus parameters were measured and analysed in relation to each other and were compared with the data in the literature on the skulls of various horse breeds. In comparison with pony breed, Shetland ponies and donkeys had a shorter nasal length than cranial length, while Noma horses had a longer nasal length than cranial length, similar to the larger breeds. In the nasal conchal bullae, Shetland ponies showed a negative correlation between the head and bullae size, while Noma horses, similar to larger breeds, had a positive correlation. In conclusion, our findings suggest that Noma horses, despite having a body size that belongs to the pony breed, had a distinguishing ratio of the skull and paranasal sinuses similar to that of the larger breeds. Our results provide information on the physiological morphology of the head and comparative anatomy based on genetic diversity in horses.</jats:p>
収録刊行物
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- Anatomia, Histologia, Embryologia
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Anatomia, Histologia, Embryologia 51 (5), 624-632, 2022-07-18
Wiley
