. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 24 BULLETIN 487, U. S. DEPARTMENT OF AGRICULTURE. cial attention should be given the trot or pace according to the direc- tions given under the description of the draft horse. The light horse should not come down on his heels in a pronounced manner. ESTIMATING THE AGE OF A HORSE. Every student should learn to estimate the age of a horse. When a horse is scored each student should put his estimate of the horse's age upon the card. Horses of different ages should be selected in order that the student may note their devel
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 24 BULLETIN 487, U. S. DEPARTMENT OF AGRICULTURE. cial attention should be given the trot or pace according to the direc- tions given under the description of the draft horse. The light horse should not come down on his heels in a pronounced manner. ESTIMATING THE AGE OF A HORSE. Every student should learn to estimate the age of a horse. When a horse is scored each student should put his estimate of the horse's age upon the card. Horses of different ages should be selected in order that the student may note their development and have prac- tice in estimating ages. (Fig. 15.) Until a horse is over 10 }Tears old the teeth furnish an indication of age which is fairly accurate. In estimating the age of a horse Ave consider only the three pairs of front teeth or nippers on each jaw. Horses, like human beings, have two sets of teeth; the first set, known as milk teeth, being replaced by permanent teeth. New teeth have deep cups, or indenta- tions, at their cen- ters. As the teeth wear down these cups disappear. A colt does not usually get its first pair of nippers until it is a few days old, and has all three pairs by the time it is 6 to 10 months old. Until a colt is 3 years old, its general appear- ance is relied upon largely as an indication of its age. The follow- ing descriptions, with the accompanying illustrations, are intended to aid the student in getting an idea of the condition of a horse's mouth by years: One year.—The center pair of milk incisors, known as the pinch- ers, and the pair next to them, known as the intermediates, are well through the gums and in contact, but the corner pairs do not yet meet on a f hm'ses as indicated by teeth. Longitudinal section of left central lower incisor and cross sections of same tooth, showing table surfaces as they appear at the ages of 3, 5, 7, 9, 15, 20, and 25 years. C, Cement; I, infundibulum ; D, dentine ; K, cup ; S, star; E, enam
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