. Fig-. 61.—Tubercular tumor of the winj,'. losis is a frequent disease with birds of the poultry- yard. It occurs with them in an epidemic form. It attacks fowls, pheasants, ])igeons, turkeys, peacocks, guinea fowls, etc., and it may even l)e produced in small birds ; In 600 autopsies of fowls made by Zuern, presumal)ly in Germany, sixty- two, or ten per cent, were found tuberculous. In the cases reported in the United Slates there ap])ears to have ])een very few instances in which the diagnosis was confirmed by bacteriological tion and tl:e demonstration of the


. Fig-. 61.—Tubercular tumor of the winj,'. losis is a frequent disease with birds of the poultry- yard. It occurs with them in an epidemic form. It attacks fowls, pheasants, ])igeons, turkeys, peacocks, guinea fowls, etc., and it may even l)e produced in small birds ; In 600 autopsies of fowls made by Zuern, presumal)ly in Germany, sixty- two, or ten per cent, were found tuberculous. In the cases reported in the United Slates there ap])ears to have ])een very few instances in which the diagnosis was confirmed by bacteriological tion and tl:e demonstration of the liacillus. Symptoms.— The sym]itoms wliich are observed in the tuberculosis of birds are common to other diseases, and, therefore, while they are valuable as an indication of the nature of the disease, they are not sufficient to permit an absolutely relial)le conclusion to be reached. There is rapid and progressive emaciation, made


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Keywords: ., bookcentury1800, bookcollectionamer, bookdecade1890, bookyear1899