Age estimation of Arabian mares by incisors morphometry and dentition changes.
Abstract: Accurate estimation of a horse's age based on the condition of the tooth status is necessary as a scientific and artistic technique, which has not been performed so far in pure Arabian horses of Khuzestan (southern west of Iran). This study aimed to investigate the age-dependent changes in the morphology and morphometry of the incisors in Arabian mares of Khuzestan to estimate age and to compare the estimated dental age and actual age. In this study, 78 Arabian mares of Khuzestan were examined in several equestrian clubs. Then, images were taken with a digital camera from the vestibular and occlusal surfaces of the lower incisors. Parameters of deciduous and permanent teeth eruption and their number, occlusal surface changes in the lower incisors including appearance and disappearance of the cup, enamel spot, dental star and appearance, and changes of Galvayne's groove in the upper corner incisor were investigated. Comparison of the clinical crown length of incisors in each group showed that first, second and third incisors (I I and I) had the maximum to minimum crown length, respectively. The correlation between actual age and clinical crown length was strong in I (r = 0.73, p ≤ 0.001), I (r = 0.8, p ≤ 0.001), and I (r = 0.81, p ≤ 0.001) in the Arabian mares of Khuzestan. The correlation of estimated dental age with actual age in the Arabian mares of Khuzestan was very strong (r = 0.992, p ≤ 0.001). Therefore, the dental age estimation in the Arabian mares of Khuzestan appears to be very close to the actual age of the animal.
© 2021. The Author(s), under exclusive licence to Springer Nature B.V.
Publication Date: 2021-11-30 PubMed ID: 34846630DOI: 10.1007/s11259-021-09865-5Google Scholar: Lookup
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Summary
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The research studied how to accurately estimate the age of Arabian mares by examining changes in their incisors. The study found that the correlation between the estimated dental age and actual age of the horses was very strong.
Overview of the Research
- The study was conducted on pure Arabian mares in Khuzestan (southern west of Iran) and aimed to ascertain age-dependent changes in the morphology and morphometry of the mares’ incisors.
- The researchers examined 78 Arabian mares from several equestrian clubs and utilized a digital camera to take images of the various surfaces of the lower incisors.
- The study focused on parameters such as the eruption of deciduous and permanent teeth, the number of these teeth, surface changes in the lower incisors, and appearance and changes of Galvayne’s groove in the upper corner incisor.
Findings of the Research
- The clinical crown length, a characteristic of each tooth, varied among the first, second, and third incisors. The first incisors had the maximum crown length, while the third incisors had the minimum.
- The correlation between the actual age and clinical crown length was strong in the studied Arabian mares: correlation (r) was 0.73 for the first mares, 0.8 for second, and 0.81 for third, with all results found to be statistically significant (p ≤ 0.001).
Conclusion
- Interestingly, the researchers discovered a strong statistical correlation between the estimated dental age and the actual age of the Arabian mares. This correlation was very strong with a measure of 0.992, which was significant (p ≤ 0.001).
- According to these results, the research concludes that age estimation conducted via dental examination appears to be very close to the actual age of Arabian mares in Khuzestan, making it a reliable method for age estimation in these animals.
Cite This Article
APA
Khazaeel K, Pesarakli H, Mashhadi AG, Borujeni MP.
(2021).
Age estimation of Arabian mares by incisors morphometry and dentition changes.
Vet Res Commun, 46(2), 405-417.
https://doi.org/10.1007/s11259-021-09865-5 Publication
Researcher Affiliations
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, 6135783151, Ahvaz, Iran. k.khazaeil@scu.ac.ir.
- Graduated Student of Veterinary Medicine, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
- Department of Food Hygiene & Quality Control, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
MeSH Terms
- Animals
- Dentition
- Female
- Horses
- Incisor / anatomy & histology
Grant Funding
- scu / Shahid Chamran University of Ahvaz
- VB98.293 / Shahid Chamran University of Ahvaz
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