. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 5 Anthrax. may sometimes be infected by subcutaneous injections and by feeding (Perroncito, Crookshank, G-arth), yet in most instances they resist artificial infection (Eatz, Tscliernogoroff). Dogs oc- casionally become ill from intravenous injections with pure cul- tures (Bardach, Martel), and exceptionally from the feeding of anthrax meat. Plowever, as a rule they manifest considerable resistance to artificial infections. Young pigeons _ and small birds in general may be quite easily infected artif
. Special pathology and therapeutics of the diseases of domestic animals. Veterinary medicine. 5 Anthrax. may sometimes be infected by subcutaneous injections and by feeding (Perroncito, Crookshank, G-arth), yet in most instances they resist artificial infection (Eatz, Tscliernogoroff). Dogs oc- casionally become ill from intravenous injections with pure cul- tures (Bardach, Martel), and exceptionally from the feeding of anthrax meat. Plowever, as a rule they manifest considerable resistance to artificial infections. Young pigeons _ and small birds in general may be quite easily infected artificially, while in large birds as well as in chickens infection is difficult. The high virulence of the blood of animals dead of anthrax has been established by experiments, according to which a mil- lionth part of a drop of blood injected subcutaneously kills a guinea pig in 23-24 hours (Davaine). By repeated passage of the virus through the body of susceptible animals (mice, guinea pigs) as well as through resistant animals (chickens,. Fig. 5. Spore formation in anthrax hacilK. Eight-hours old agar culture stained with diluted fuchsin solution. Fig. 6. Anthrax threads with spores. Cover glass preparation from an i eight-hours old agar culture. Fuchsin staining. dogs) its virulence is increased, and in this manner a virus which is fatal in 24-30 hours may be obtained (Martel). On the other hand, influences which check the development (high temperature, disinfectants as well as the continuous action of the oxygen of the air), have attenuating effects on both the bacilli and the spores. (See protective immunization.) In the presence of certain other bacteria the multiplication of the â anthrax bacillus is hindered or entirely cheeked. As such antagonists the following are known: Bae. pyocyaneus, prodigiosus, fluorescens, phosphorescens, Gartner's bacillus, Friedlander's pneumococcus, streptococci and staphylococci, and the anserobic putrefactive bacteria. The antagonism manifest
Size: 2452px × 1019px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectveterin, bookyear1912
