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Bottom teeth diagram12/29/2023 ![]() 4,5 This technique is assumed to be more accurate than the tooth replacement and wear technique since the age estimation is conducted and assigned in a laboratory setting. The cementum annuli technique uses a cross section of a primary incisor (two front teeth) of the deer to count the number of “rings.” This technique rests on the principle that a white-tailed deer will have annual growth “rings,” similar to growth rings of a tree, which indicate age. Although undocumented, genetics and individual health may also contribute to variation. 3 For instance, a white-tailed deer that feeds primarily on clover in loamy soils, may have less tooth wear than a deer that feeds primarily on twigs during the winter in the northeastern United States. However, this technique for aging deer may suffer inaccuracies due to variation in nutrition, amount of grit on vegetation, and soil types. ![]() ![]() Tooth wear criteria use a series of comparisons of tooth characteristics to assign the age and will be explained later in the paper. After 1.5-years-old tooth wear is used to determine the age. 2 Tooth eruption and replacement of temporary teeth by permanent teeth can indicate the age of the deer up to 1.5 years old. The most common technique for aging white-tailed deer is tooth replacement and wear, developed by C.W. Tooth Replacement and Wear versus Cementum Annuli The tooth replacement and wear technique may be utilized in the field, whereas the cementum annuli technique requires the collection of teeth and laboratory analysis. There are two widely used techniques for aging white-tailed deer: (1) tooth replacement and wear and (2) cementum annuli. Metrics such as body weight, antler development, and reproductive rates are most meaningful when paired with the age of the deer to provide context for each metric. In order to effectively manage deer, it is important to have metrics that provide evidence of success towards specific management objectives. 1 Deer population management is important to maintain the health of deer herds and to protect their habitats from the effects of overpopulation. White-tailed deer ( Odocoileus virginianus) are the most hunted and economically important game species in North America.
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