. Spezielle Pathologie und Therapie der Erkrankungen von Haustieren. Veterinärmedizin. 840 Spirillosis von Vögeln.. J'ig. 151. Spirochaete anserina. Blut. (Nach Cantaeuzene.) Gans Ätiologie. Der Erreger der Krankheit (Spirochaete anserum gallinariim, Sp.) ist ein blutparasiten, wahrscheinlich gehören - ing zu Flagellated Protozoen, die sich eng an die Ursache der immer wiederkehrenden Fieber der Mann (Spirochaete Obermeieri), die seit mehreren Jahrzehnten bekannt, ähnelt. Es tritt in feinen Fäden, 10-20 i^Lang, ähnlich wie bei der Spirale Gewinde der Schraube gebildet, geliefert mit einem oder mehreren Zilien (Borrel)

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. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 840 Spirillosis of Fowls.. J'ig. 151. Spirochaete anserina. blood. (After Cantaeuzene.) Goose Etiology. The causative agent of the disease (Spirochaete gallinariim, Sp. anserum) is a blood parasite, probably belong- ing to flagellated protozoa, which closely resembles the cause of recurrent fever of man (Spirochaete Obermeieri) which has been known for several decades. It occurs in fine threads, 10-20 i^ long, formed similarly to the spiral thread of a screw, supplied with one or more cilia (Borrel) w-hich move actively be- tween the blood corpuscles in the blood of living ani- mals affected with the dis- ease (Fig. 151). They dis- appear from the blood shortly after death and in drawn blood they remain alive at best only for 2 to 3 days. Dschunkowsky & Luhs are reported to have succeeded in cultivating the spiro- chaete of geese in blood plasma of geese by means of reed sacks in the body of a rabbit up to the third generation; later indications of degeneration became apparent on the threads, but the fluid possessed a protective action against artificial infections. The disease may be produced easily by subcutaneous in- jection of blood containing spirillae from geese to geese, from ducks to young chicks, but only with difficulty to grown chickens, while the transmission from affected chickens to chicken species, as well as to water fowl is readily accomplished (it was not possible to infect monkeys with the spirilla of chickens). After a subcutaneous infection in chickens a considerable number of parasites appear on the second day independently of the quan- tity of inoculated blood which continue to increase until the fifth day, and in the meantime clump together, forming great agglomeration masses. On the sixth day after the temperature has fallen rapidly, they disappear from the blood, whereupon death ensues or the animal gradually recovers. The artificial infection

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• bookcentury1900
• bookdecade1910
• booksubjectveterin
• bookyear1912