. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 112.—Side view of the teeth of a five-year- old horse III.—Lower nippers of a five-year-old horse year's wear. They have also changed slightly in shape, having become rounder on the inside. The intermediate teeth show one year's wear. The cups show in all, but are deepest and freshest in appearance in the corner teeth. The tusks have en- larged but are not yet blunt. Six years old.—At six years of age, the cups in the
. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 112.—Side view of the teeth of a five-year- old horse III.—Lower nippers of a five-year-old horse year's wear. They have also changed slightly in shape, having become rounder on the inside. The intermediate teeth show one year's wear. The cups show in all, but are deepest and freshest in appearance in the corner teeth. The tusks have en- larged but are not yet blunt. Six years old.—At six years of age, the cups in the lower jaw have disappeared, or nearly so, from the central teeth, have become smaller in the intermediates, and the corner teeth are up and in full wear over their entire surface. Figs. 113, 114. Sometimes, however, a horse has shelly teeth, in which case the inside comer teeth may not be up and in wear; in fact, they may never come up, but always have the appearance of corner teeth that are not fully up. The center teeth have made marked changes in shape, becoming quite roundish on the inside, and the inter- mediates are also somewhat modified. If the horse's lips are parted and the mouth viewed from the front, it will be noted that the central ones will appear much darker colored and longer than they did at three or four. This is due to the shrinking or receding of the gums. Seven years old.—At seven years of age, the cups have disappeared from the intermediate teeth, although small dark spots may often be seen. The corner teeth still retain their cups, though they are quite shallow. The side view of a seven-year-old mouth shows one marked charac- teristic. The lower corner teeth seldom extend as far back- wards as the upper ones do. Only in rare cases do all four corner teeth meet accurately. The result is that the face of the tooth in the rear recedes, while that part of the tooth not in wear projects downward, forming more or less of a Please note that the
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