. Productive dairying . Dairying. Plow ABORTION BECOMES DISSEMINATED 195 other breeds of cattle with little less severity. Many heifers will abort once and then carry their second calf for the full period. A less number will abort their second calf and it is a rare condition when a cow aborts the third time. Heifers from aborting mothers may be less sttsceptible than those bom to healthy or noninfected dams. The Manner by Which Abortion Becomes Disseminated.— The mucous lining of the uterus of infected heifers and cows harbors the Bacillus ahorius. The contents of the uterus, such. FlQ. OS.—He
. Productive dairying . Dairying. Plow ABORTION BECOMES DISSEMINATED 195 other breeds of cattle with little less severity. Many heifers will abort once and then carry their second calf for the full period. A less number will abort their second calf and it is a rare condition when a cow aborts the third time. Heifers from aborting mothers may be less sttsceptible than those bom to healthy or noninfected dams. The Manner by Which Abortion Becomes Disseminated.— The mucous lining of the uterus of infected heifers and cows harbors the Bacillus ahorius. The contents of the uterus, such. FlQ. OS.—Heifer, thin and in poor condition, though not affected with tuberculosis. (Courtesy of M. H. Reynolds.) as the fcetus, fa'tal membranes, and the fluids, are all viruleut and when expelled from the uterus become vehicles by which the disease spreads. The discharge from the uterus following abor- tion contains myriads of bacilli (germs) which may be carried to various parts of the stable by aid of the surface drainage; attendants may carry the infection on their boots or on the milk- ing utensils which are at times carelessly handled. The bull is undoubtedly a frequent cander of the infection, especially where several breeders use the same animal. Infected pregnant heifers or cows introduced into healthy herds are often responsi- ble for establishing new centers of the disease when they 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 Washburn, Robert Mann, 1874-. Philadelphia ; London : J. B. Lippincott Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdairying, bookyear191
