. The diseases of poultry. DISEASES OF POULTKV. 229 tissues of fowls is from to micro-niilliineters long and 1 to micro-niillinieters l)roacl. It fre- quently appears in small clumps, but as a rule is in pairs united end to end. This germ is found in the blood and in various organs of the body. Exoerimentallj' the disease has been ]~)roduced b}^ inoculating with ])ure cultures of the germs and by feeding pure cultures or the organs of i. affected fowls. The injection of cubic centimeter of a fresh ^ culture into the wing vein caused the dis- ease and death in *^ /â¢'"â &qu
. The diseases of poultry. DISEASES OF POULTKV. 229 tissues of fowls is from to micro-niilliineters long and 1 to micro-niillinieters l)roacl. It fre- quently appears in small clumps, but as a rule is in pairs united end to end. This germ is found in the blood and in various organs of the body. Exoerimentallj' the disease has been ]~)roduced b}^ inoculating with ])ure cultures of the germs and by feeding pure cultures or the organs of i. affected fowls. The injection of cubic centimeter of a fresh ^ culture into the wing vein caused the dis- ease and death in *^ /â¢'"â "'â â -, from three to thirteen â f I { :j daj'S; usuallv on the Fig-. IQ.âBoclcriioii saiigiiiiutriiini from hitll Or SlXtll day. spleen of rabbit. Feeding cultures or viscera of affected birds was followed by death in from seven to fifteen days, but only about half of the birds fed contracted the disease. Pigeons, rabbits, guinea pigs and mice contract the disease if inoculated with to cubic centimeter of culture and die within three to six days. It appears probable from these investigations that the contagion in natural out1)reaks is taken into the body with the food, but the disease is not readily propagated under sanitary conditions. Healthy fowls placed in cages with diseased ones did not in a single instance contract the disease. When cultures of the germs and diseased viscera were fed, only about oue- half of the fowls became affected. Xotvv'ithstanding this, nearly all of one flock of about fiftv fowls near. 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
