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DETERMINING THE AGE OF CATTLE
BY THE TEETH

GEORGE W. POPE

FARMERS' BULLETIN 1066
UNITED STATES DEPARTMENT OF AGRICULTURE

Contribution from the Bureau of Animal Industry
JOHN R. MOHLER, Chief

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At 5 to 6 years there is a leveling of the permanent pinchers, the pinchers usually being leveled at six and both pairs of intermediates partially leveled and the corner incisors showing wear.

From seven to eight the pinchers are noticeably worn; from eight to nine the middle pairs, and by ten years the corner teeth.

After 6 years the arch gradually loses its rounded contour and becomes nearly straight by the twelfth year. In the meantime the teeth have gradually become triangular in shape, distinctly separated, and show the progressive wearing to stubs...................

 

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