. Breeding of farm animals. Livestock. ABORTION AND PREMATURE BIRTH 269 abortion in farm animals which should be clearly under- stood by all breeders: First, accidental abortion, in which, owing" to accident or disease of either the fetus or dam, the fetus may be expelled dead or in such a state of disease as to rerjder it impossible for it to live. Second, infectious abortion, in which an infection of the fetus and its membranes causes the death and expulsion of the fetus, or its expulsion in a living and enfeebled state at any period of pregnancy, without directly inducing material evid
. Breeding of farm animals. Livestock. ABORTION AND PREMATURE BIRTH 269 abortion in farm animals which should be clearly under- stood by all breeders: First, accidental abortion, in which, owing" to accident or disease of either the fetus or dam, the fetus may be expelled dead or in such a state of disease as to rerjder it impossible for it to live. Second, infectious abortion, in which an infection of the fetus and its membranes causes the death and expulsion of the fetus, or its expulsion in a living and enfeebled state at any period of pregnancy, without directly inducing material evidence of disease in the mother. Infectious abortion is by far the most troublesome, particularly in animals that are closely confined and highly fed on suc- culent and artificial foods. Accidental abortion.âThis is produced by any cause operating to disconnect the union of the membranes from the uterus. Thus a pregnant female may abort by rea- son of almost any cause that very generally disturlis her system, as the influence of too stimulating a diet, or the reverse; the feeding of ergot on rye, the smut of corn or other grains, and iced grasses, as well as large drafts of ice cold water. The more mechani- cal causes are falls, blows 1 â I , , â â Fig. K3âAberdeen Angus True to Type and violent exertion, as m pulling; also traveling on muddy or slippery roads, jump- ing fences, and the like. Among dairy cows kept in uncomfortable stanchions, on slippery, wet floors, there may at any time occur a slip or fall which may imperil the life of the fetus. The jamming and jolting suffered by pregnant animals dur- ing transportation by rail is liable to bring about injuries which may lead to abortion. Any disease of the dam may involve the fetus and. 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 Harper, Merritt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlivesto, bookyear1914
