...Nothing was knownof the method of infection or the transference from host to host orspecies to species, and both departments asked for specimens forexamination...
William T. Hornaday 「Our Vanishing Wild Life」
...The bull is protected from abortion infection to agreat degree by permitting him to serve only such animals as have calved oraborted from six weeks to two months previously...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...It has been asserted that scarlet fever has been transmitted from the cow toman, and it can not be denied that in many cases the infection has been spreadby means of the milk...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Keepher in a separate stall from others, so that there may be no infection fromlitter or flooring...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...One is erysipelatoid; another purulent infection with thetendency to secondary abscesses in the joints, liver, lungs, etc...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Another method of its introduction is by the purchase of acalf from a herd where the infection exists...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...A wide distribution of the virus and a rapid infection of a herd is theresult...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The infection was traced back to the stockyards at EastBuffalo, N...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...In the 1914 outbreak numerous new centers of infection startedamong hogs and calves which were fed on unpasteurized, infected milk fromcreameries...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Thedistinction is apparent in these diseases by the lack of vesicular eruption onthe mucous membrane or skin, and also by lack of evidences of infection in theherd or neighboring animals...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...Injuries received during parturition,stoppage of the milk ducts, and infection of the umbilicus in the newly bornare also frequent causes of pyemia...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...—The period between the infection and the appearance ofsymptoms is somewhat variable...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
便利!手書き漢字入力検索