Inherited dental anomalies in the horse (Equidae, Equus caballus)

Spasskaya N. N.

P. 17-26

Under consideration are different kinds of congenital dental anomalies in the domestic horses. It is shown that such anomalies are more frequent in the native breeds horses as compared to the cultivated breeds. Some anomalies, in particular false polidontiya of P1, are detected more often in younger animals, which is explained by possible loss of extra tooth during the animal’s life. Frequency of occurrence of dental anomalies is shown to increase in isolated groups, for example, in Iceland and in island of feral horses, as a result of inbreeding.DOI: 10.15298/rusjtheriol.13.1.03

• Belyaev D.K. 1972. [Genetic aspects of animal domestication] // Matveev B.S. (ed.). [Problems of domestication of animals and plants]. Moskva: Nauka. P.39-45 [in Russian].
• Brigham E.J., Duncanson G.R. 2000а. An equine postmortem dental study: 50 cases // Equine Veterinary Education. Vol.12. No.2. P.59-62.
• Brigham E.J., Duncanson G.R. 2000b. Case study of 100 horses presented to an equine dental technical in the UK // Equine Veterinary Education. Vol.12. No.2. P.63-67.
• Dixon P.M., Dacre I. 2005. A review of equine dental disorders // The Veterinary Journal. Vol.169. P.165-187.
• Dixon P.M., Tremaine W.H., Pickles K., Kuhns L., Hawe C., McCann J., McGorum B., Ralton D.I., Brammer S. 1999a. Equine dental disease Part 1: A long-term study of 400 cases: disorder of incisor, canine and first premolar teeth // Equine Veterinary Journal. Vol.31. No.5. P.369-377.
• Dixon P.M., Tremaine W.H., Pickles K., Kuhns L., Hawe C., McCann J., McGorum B., Ralton D.I., Brammer S. 1999b. Equine dental disease Part 2: A long-term study of 400 cases: disorder of development and eruption and variations in position of the cheek teeth // Equine Veterinary Journal. Vol.31. No.6. P.519-528.
• Durst W. 1936. [Exterior horse]. Moskva-Leningrad: Selkhozgiz. 344 p. [in Russian]
• Easley J. 2006. Equine dental developmental abnormalities // Equine Dentistry Focus Meeting. Indianapolis: American Association of Equine Practitioners.
• Gromova V.I. 1949. [History horses (genus Equus) in the Old World. Part 2. The evolution and classification of the genus] // Trudy Paleontologicheskogo Instituta AN SSSR. Vol.17. No.2. 162 p. [in Russian]
• Korneven Sh., Lesbr F.-K. 1932. [Recognition of age in the teeth and derived epithelium]. Moskva-Leningrad: Gosizdatel'stvo sel'skohozjaistvennoi i kolhozno-kooperativnoi literaturu. 213 p. [in Russian]
• Kuleshov P.K., Krasnikov A.S. 1928. [Determining the age of farm animals]. Moskva: Gosudarstvennoe izdatel'stvo. 120 p. [in Russian]
• Penzhorn B.L. 1984. Dental abnormalities in free-rangong cape mountain zebra (Equus zebra zebra) // Journal of Wildlife Desaeses. Vol.20. No.2. P.161-166.
• Peredelsky A.A. 1927. [Canine of the horse as a secondary sexual characteristic] // Trudy Laboratorii eksperimental'noy biologii Moskovskogo zoparka. Vol.3. P.201-236. [in Russian].
• Peters J.W., de Boer B., Broeze-ten G.B.M., Broeze J., Wiemer P., Sterk T., Spoormakers T.J.P. 2006. Survey of common dental abnormalities in 483 horses in the Netherlands // Equine Dentistry Focus Meeting. Indianapolis: American Association of Equine Practitioners.
• Rudick S.K. 1973. [Random dental anomalies in horses] // Vestnik Zoologii. Vol.1. P.82-83 [in Russian].
• Bateson W. 1894. Materials for the study of variation treated with especial regard to discontinuity, in the origin species. London: Macmillan and Co and New York. 598 p.
• Spasskaya N.N., Pavlinov I.Ya. 2008. [Variability and correlation structure of cheek teeth of Przewalski's horse (Equus przewalskii; Mammalia: Equidae)] // Bulleten Moskovskogo Obschestva Ispytatelei Prirody. Otdel Biologii. Vol.113. No.2. P.3-13 [in Russian, with English summary].
• Spasskaya N.N., Yanishevskii B.E. 2013. [Horses of sanitary burial place 1812 at the village of Borodino: identification of breeds] // Zoologicheskii Zhurnal. Vol.92. No.9. P.1162-1178 [in Russian, with English summary].
• Spasskaya N.N. 2001. [Intraspecific morphological variability of the Przewalski horse (Equus przewalskii Poljakov, 1881)]. PhD Thesis. Institut problem ekologii i evoljucii im. A.N. Severtsova RAN. Moscow. 323 p. [in Russian]
• Spasskaya N.N., Ermilina J.A., Makhotkina K.A., Svinarenko A.E. 2010. [Phenotypic characterization of an isolated population of feral horses Vodny Island (Rostov Reg.)] // Bulleten Moskovskogo Obschestva Ispytatelei Prirody. Otdel Biologii. Vol.110. No.6. P.15-23 [in Russian, with English summary].
• Svechin K.B. 1976. [Individual development of farm animals]. Moscow: Urozhay. 284 p. [in Russian]
• Vokken G.G., Glagolev P.A., Bogolyubsky S.N. 1961. [Anatomy of domestic animals: anatomy of movement]. Moscow: Kolos. 390 p. [in Russian]
• Yasui K. 2009. Numeral anomalies of teeth observed in a reared Malayan tapir (Tapirus indicus) // Science Report of the Toyohashi Museum of Natural History. Vol.19. P.1-6.