. The horse in the stable and the field : his management in health and disease. e level,but the corner nippers maintain this appearance for a long time!At six months the central nippers are almost level, with the blackmark in their middle wide and faint; and about the ninthmonth the next nipper on each side above and below is also worndown almost to a level surface. During the second year the following changes take place :—In the first month, and sometimes towards the end of the firstyear, a fourth grinder is cut all round, which commences the setof permanent teeth, the three first molars only
. The horse in the stable and the field : his management in health and disease. e level,but the corner nippers maintain this appearance for a long time!At six months the central nippers are almost level, with the blackmark in their middle wide and faint; and about the ninthmonth the next nipper on each side above and below is also worndown almost to a level surface. During the second year the following changes take place :—In the first month, and sometimes towards the end of the firstyear, a fourth grinder is cut all round, which commences the setof permanent teeth, the three first molars only being shed. At ayear and a half, the mark in the central nippers is much worn out,and has become very ftxint; the second is also worn flat, but is notso faint; and the corner nippers are flat, but present the markclearly enough. In colts which have been reared on corn andmuch hay, the Avearing down proceeds more rapidly than in thosefed upon grass alone. The third year is occupied by the commencement of thesecond dentition, which is effected in the same order in which the. FlO. 3.—THREE-TEAR-OLD MOHTH. B. Anterior maxillary bone. 3. 5. Corner milk teeth, still showing cen- 1. 1 Central permanent nippers, iiearly tral mark .TO S}!¥°?r°- , 4. 4. Tushes concealed within the jaw. 2. 2. Wilk teeth worn clown. milk teeth made their appearance. Both sets are contained withinthe jaw at birth, the permanent teeth being small and only par- 260 THE HORSE. tially developed, and lying deeper than the milk teeth. As themouth grows, it becomes too large for its first set of teeth ; and theroots of these being pressed upon by the growth of the permanentset, their fangs are absorbed, and allow the new teeth to showthemselves, either in the places of the former, or by their sides, inwhich case they are known by the name of wolfs teeth. Thischange proceeds in the same order as the cutting of the milkteeth, commencing with the first grinder, which is shed and re-placed by a permanent tooth
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectch, booksubjecthorses
