The stock owner's adviser; the breeding, rearing, management, diseases and treatment of domestic animals . Fig. 33—Osteo Porosis, or Big Head. DISEASES OF THE BONES. 173 known as osteo porosis. This disease is essentially a disease ofgrowth, and in this particular it resembles rickets. It is seldomseen in horses over twelve years of age. Causes.—The causes producing this disease have been a mys-tery. It prevails most extensively in low-lying lands and indamp places. All classes of horses, mules, ponies, sheep, andcattle, no matter how fed and treated, get the disease in certainlocalities and u
The stock owner's adviser; the breeding, rearing, management, diseases and treatment of domestic animals . Fig. 33—Osteo Porosis, or Big Head. DISEASES OF THE BONES. 173 known as osteo porosis. This disease is essentially a disease ofgrowth, and in this particular it resembles rickets. It is seldomseen in horses over twelve years of age. Causes.—The causes producing this disease have been a mys-tery. It prevails most extensively in low-lying lands and indamp places. All classes of horses, mules, ponies, sheep, andcattle, no matter how fed and treated, get the disease in certainlocalities and under certain conditions. I have been unable,. Fig. 34—Osteo view. The dotted lines show the enlargement. after thorough investigation, to trace the cause of the disease tofeed. The water and feed may be predisposing causes, but theywill not produce the disease in themselves. The symptoms aremore aggravated during the winter months, and the disease ismore prevalent where stables are located on low, marshy land. For the last five years the disease has prevailed to a consid-erable extent at Lamberts Point, Virginia. This point of landlies on the Elizabeth Eiver, only a few miles from HamptonRoads. With but few exceptions the farms on this point have 174 THE STOCK owners ADVISEE had cases presenting symptoms of rheumatism. On one farmevery young horse brought there has become similarly of twenty-one cases presenting symptoms of rheumatism,that came under my observation in this locality, only sevendeveloped big-head. Some of this number were treated threeand four years ago, and are now well. Some that were
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