Appendix A: Estimating cattle age by dentition

Figure I

Permanent teeth lingual aspect - incisor and canine teeth of ox 5 years of age

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Permanent Teeth Lingual Aspect, Incisor and Canine Teeth of Ox 5 Years of Age

Description for Figure I - Permanent Teeth Lingual Aspect, Incisor and Canine Teeth of Ox 5 Years of Age

The figure represents the lingual aspect of the mandible of a bovine of 5 years of age. The first permanent incisors (left and right) are located centrally, the second permanent incisors (left and right), the third permanent incisors (left and right) and the right canine, respectively located laterally, are identified.

Figure II - Picture of dentition for cattle

< 24 months
Full deciduous dentition
< 24 months, Full deciduous dentition
Description for Figure II (first picture) - Dentition for cattle

The first picture shows a full set of eight temporary teeth on the mandible of a bovine less than twenty-four (24) months of age.

>24 months < 30 months
Primary permanent incisor in eruption
>24  months < 30 months Primary permanent incisor in eruption
Description for Figure II (second picture) - Dentition for cattle

The second picture shows the primary permanent incisor erupting from the mandible of a bovine aged more than twenty-four (24) months but less than thirty (30) months.

>24 months <30 months
Pair of primary permanent incisors in eruption
>24 months <30 months Pair of primary permanent incisors in eruption
Description for Figure II (third picture) - Dentition for cattle

The third picture shows the first set of permanent incisors erupting from the mandible of a bovine aged more than twenty-four (24) months but less than thirty (30) months.

>24 months <30 months
Pair of primary permanent incisors fully erupted
>24 months <30 months Pair of primary permanent incisors fully erupted
Description for Figure II (fourth picture) - Dentition for cattle

The fourth picture represents the first set of permanent incisors fully erupted from the mandible of a bovine aged more than twenty-four (24) months but less than thirty (30) months.

>30 months
Three permanent incisors fully erupted
>30 months Three permanent incisors fully erupted
Description for Figure II (fifth picture) - Dentition for cattle

The fifth picture represents three permanent incisors fully erupted from the mandible of a bovine aged more than thirty (30) months.

>30 months
Pair of second permanent incisors in eruption
>30 months Pair of second permanent incisors in eruption
Description for Figure II (sixth picture) - Dentition for cattle

The sixth picture shows second pair of permanent incisors erupting from the mandible of a bovine aged more than thirty (30) months.

>30 months
Two pairs of permanent incisors completely erupted
>30 months Two pairs of permanent incisors completely erupted
Description for Figure II (seventh picture) - Dentition for cattle

The seventh picture shows two pairs of permanent incisors completely erupted from the mandible of a bovine aged more than thirty (30) months.

>30 months
Complete permanent dentition
>30 months Complete permanent dentition
Description for Figure II (seventh picture) - Dentition for cattle

The eighth and last picture shows a full set of permanent incisors in a bovine aged more than thirty (30) months.

Pictures used with permission of MAPAQ