Difference between revisions of "Dental Formula - Ruminants"
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(Corrected eruption timeline per Dyce (4th Ed) & course materials (Texas A&M University)) |
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The upper teeth are more widely separated. '''Premolars''' have one cusp, '''molars''' have two cusps. | The upper teeth are more widely separated. '''Premolars''' have one cusp, '''molars''' have two cusps. | ||
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[[Category:Teeth - Anatomy & Physiology]] | [[Category:Teeth - Anatomy & Physiology]] | ||
[[Category:Alimentary Anatomy - Cattle]] | [[Category:Alimentary Anatomy - Cattle]] | ||
Revision as of 20:28, 3 October 2018
Cow, sheep and goat overview
The deciduous teeth are complete and functional by 2 weeks of age (3 weeks in sheep and goats). The permanent teeth are complete and functional by 42-48 months of age depending on breed (48 months in sheep and goats).
The formula for deciduous teeth is: 2 (I0/3 C0/1 P3/3)
The formula for permanent teeth is: 2 (I0/3 C0/1 P3/3 M3/3)
Dental Pad
The dental pad is in the position of the upper teeth. It is soft cartilage and acts with the lower incisors when grazing.
Dense, richly vascular tissue beneath the palatine epithelium attaches tightly so it can not be moved during mastication.
Incisors
Incisors are only present on the lower jaw. They have wide, asymmetrical crowns.
Canines
Canines are only present on the lower jaw. They take on the form and function of incisors - 'Incisiform canines'
Molars and Premolars
The upper teeth are more widely separated. Premolars have one cusp, molars have two cusps.
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