. Judging farm animals . Livestock. THE ANATOMY OF THE HORSE 33 years of age, the second pair of nippers in each jaw of the colt gives way to two larger, permanent teeth, so that the four-year-old shows four pairs of permanent front teeth. At four and one-half to five years of age the last pair of the front teeth of the colt, in each jaw, is supplanted by a pair of permanent ones. At this age what are called tusks appear in the mouth of the male; they also occur occasionally in the mare. These tusks have roundish points, and there are two in each jaw, one on a side, a short distance back of th
. Judging farm animals . Livestock. THE ANATOMY OF THE HORSE 33 years of age, the second pair of nippers in each jaw of the colt gives way to two larger, permanent teeth, so that the four-year-old shows four pairs of permanent front teeth. At four and one-half to five years of age the last pair of the front teeth of the colt, in each jaw, is supplanted by a pair of permanent ones. At this age what are called tusks appear in the mouth of the male; they also occur occasionally in the mare. These tusks have roundish points, and there are two in each jaw, one on a side, a short distance back of the front teeth. After the fifth year the age of the horse is determined by the ap- pearance of the wear- ing surface of the teeth, each tooth when normal having its age surface. At six years the cups of the two central teeth are worn off. At seven years the second pair shows the worn surface. At eight years all of the teeth have been worn about level, and the mouth-mark loses its value. The six perma- nent teeth in each jaw at first meet each other in vertical position, the ends butting squarely against each other. As age increases, however, the teeth gradually take a more in- clined or slanting-out position in each jaw, so that they come together at a sharper angle. The older teeth are also more worn on the ends, and are longer than the younger teeth. In a horse from 12 to 16 years of age the ends of the teeth have become somewhat three-sided. The spinal column of the horse consists of fifty-four bones, or vertebrse. Seven of these, the cervical, are in the neck; eighteen, the thoracic, are in the back; six, the. Fig, 14.—Four years of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Plumb, Charles S. (Charles Sumner), 1860-1939. New York : Orange Judd Company
Size: 1598px × 1564px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorplumbcharlesscharless, bookcentury1900, bookdecade1910
