. Common diseases of farm animals. Veterinary medicine. 190 THE TEETH After the animal has a full set of permanent teeth, we judge the age hy the degree of wear or the appearance of the table surfaces of the incisors, their shape, the angle with which they meet and the general appearance of the head. There are several ditlerent factors that may cause the wear on the teeth, and the appearance of their tahle surfaces to vary in the different individuals. The two factors that are of the. Fig. 53.—Cross-section of head of young horse showing replacement of molar tooth (A). most importance are the


. Common diseases of farm animals. Veterinary medicine. 190 THE TEETH After the animal has a full set of permanent teeth, we judge the age hy the degree of wear or the appearance of the table surfaces of the incisors, their shape, the angle with which they meet and the general appearance of the head. There are several ditlerent factors that may cause the wear on the teeth, and the appearance of their tahle surfaces to vary in the different individuals. The two factors that are of the. Fig. 53.—Cross-section of head of young horse showing replacement of molar tooth (A). most importance are the quality of the teeth and the character of feed. Soft teeth wear more quickly than hard teeth, and the teeth of horses that feed over closely cropped and sandy pastures wear rapidly because of the dirt and grit present on the short grass. Tliis variation in the wear is of little importance to the person who must judge the age of a horse that he expects to purchase by the condition of the teeth. In reality, a horse is just as old as the wear on the teeth and his general appearance. 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 Craig, Robert Alexander, 1872-. Philadelphia London, J. B. Lippincott company


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Keywords: ., bookpublisherphilad, booksubjectveterinarymedicine, bookyear1919