Observations on the age of shedding of the deciduous and the eruption of the permanent anterior teeth in a herd of Friesian cattle

SUMMARY Observations on the time of development of the permanent anterior teeth in a herd of Friesian female cattle (heifers + cows) are described. The animals were examined at approximately monthly intervals. A modified longitudinal survey method was employed. A table is presented of the maximum and minimum (i.e. the range), mean and median ages for the stages of development for each permanent pair of teeth. The stages were defined as: one of permanent pair present and/or one/both temporary teeth absent, both permanent teeth emerging, ¼ up, ½ up, ¾ up and fully up. A large amount of variation was found in the ages for each stage of development in individual animals. Tables are included for the time taken for a pair of permanent teeth to pass from first to complete emergence, the time a pair of teeth were fully up before any further development was observed and the time taken between a tooth being at one stage in one pair of teeth to the same stage in the succeeding pair of teeth.

[1]  A. Andrews.  A survey of the relationship between age and the development of the anterior teeth in cattle , 1973, Veterinary Record.

[2]  B. Roed-Petersen,et al.  Eruption times of the permanent teeth in 622 Ugandan children. , 1971, Archives of oral biology.

[3]  J. Steenkamp.  The effect of breed and nutritional plane on the chronology of teeth eruption in cattle. , 1970 .

[4]  M. Houpt,et al.  Eruption times of permanent teeth in the Brong Ahafo Region of Ghana. , 1967, American journal of orthodontics.

[5]  L. Carr.  Eruption ages of permanent teeth , 1962 .

[6]  N. Tulloh.  A study of the incisor teeth of beef cattle , 1962 .

[7]  W. Brown,et al.  Postnatal tooth development in cattle. , 1960, American journal of veterinary research.

[8]  W. C. Miller,et al.  Practical animal husbandry , 1959 .

[9]  D. M. Joubert.  On the effect of breed and nutritional plane on dentition in the cow. , 1956 .

[10]  G. Wiener,et al.  579. A study of variation in twin cattle: IV. Emergence of permanent incisor teeth , 1955, Journal of Dairy Research.

[11]  J. King,et al.  565. A study of variation in twin cattle: III. Growth , 1955, Journal of Dairy Research.

[12]  J. Fulton,et al.  Longitudinal Data on Eruption and Attack of the Permanent Teeth , 1954, Journal of dental research.

[13]  E. M. Clements,et al.  Time of Eruption of Permanent Teeth in British Children in 1947-8 , 1953, British medical journal.

[14]  H. Hartley,et al.  Time of eruption of permanent teeth and time of shedding of deciduous teeth. , 1951, British dental journal.

[15]  V. O. Hurme.  STANDARDS OF VARIATION IN THE ERUPTION OF THE FIRST SIX PERMANENT TEETH , 1948 .

[16]  T. Widdowson.  Special or dental anatomy and physiology and dental histology : human and comparative : a textbook for students, and a ready work of reference for dental practitioners , 1946 .