. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 942 Rachitis. is retarded and irregular. xVU tliese symptoms may be un- noticed, so that attention is not attracted to the disease until the motor disturbances commence. The aching in the bones, which occurs before the changes in shape, causes the animals to step about restlessly, while at the same time they move gingerly and their walk is stiff or lame; they lie much on the ground and dislike to rise. Especially pigs, less so kids and lambs, and at times other animals do not use their posterior extr
. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 942 Rachitis. is retarded and irregular. xVU tliese symptoms may be un- noticed, so that attention is not attracted to the disease until the motor disturbances commence. The aching in the bones, which occurs before the changes in shape, causes the animals to step about restlessly, while at the same time they move gingerly and their walk is stiff or lame; they lie much on the ground and dislike to rise. Especially pigs, less so kids and lambs, and at times other animals do not use their posterior extremi- ties, or indeed, all extremities, at all. They seem paralyzed, and on being forced to rise they crawl about squealing aloud. (The cases of paralysis in chicks, which Wilke diagnosed as poliomyelitis anterior, probably had a similar origin.) Smaller animals often assume a kneeling position (Fig. 160). These motor disturbances increase with the progress of the disease and when the shape of the bones commences to be L^ Fio 160. Rachitis (of pig). Aside from the motor disturbances the pig showed slight smifMing. In certain cases the disease becomes apparent through severe nervous disturbances, as was pointed out by Klimmer & Schmidt for osteomalacia and as the authors observed fre- quently in calves and pigs. The affected animals suddenly become somnolent, they stagger and even fall down, and occa- sionally develop generalized tonic-elonic muscular convulsions, which however may also be produced by external influences. Such attacks either terminate, in some 6 or_ 8 hours, with the death of the animal or are repeated a few times in the course of some days or Aveeks before death results, or then they do not appear at all, but the typical s}aiiptoms of the disease be- come evident at once. The changes in form are, at least in the beginning, most striking in the long bones of the extremities. The epiphyses are enlarged and it looks as though the joints themselves wer
Size: 2062px × 1211px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectveterin, bookyear1912
