. The diseases of poultry. DISEASES OF POULTRY 107. Fig'. 20.—Liver of diseased turkey. ance and is flattened or even slig^htly depressed below the surface. The liver may have few or manj- of these centers of disease, which when cut across are found to be deeply imbedded in the tissue of the ors^an and to have in general a spherical form. Occasionally the lesions are very extensive and the death of large por- tions of the liver tissue follows. Caus.\tion.— The disease is caused by one of the protozoa, which Smith has named the Amoeba melca- gridis. This parasite is taken into the digestive or-
. The diseases of poultry. DISEASES OF POULTRY 107. Fig'. 20.—Liver of diseased turkey. ance and is flattened or even slig^htly depressed below the surface. The liver may have few or manj- of these centers of disease, which when cut across are found to be deeply imbedded in the tissue of the ors^an and to have in general a spherical form. Occasionally the lesions are very extensive and the death of large por- tions of the liver tissue follows. Caus.\tion.— The disease is caused by one of the protozoa, which Smith has named the Amoeba melca- gridis. This parasite is taken into the digestive or- gans with the food or drink, it attacks the mucous membrane of the Cccca, causing the development of in- flammation and leading to the changes already describ- ed. The affection of the caecum is due primarily to the multiplication of the micro-organism, which takes. 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 Salmon, D. E. Washington, D. C. , G. E. Howard & co.
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Keywords: ., bookcentury1800, bookcollectionamer, bookdecade1890, bookyear1899
