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Cattle Boards
Breeding / Calving Issues
ANGUS X HOLSTEIN
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<blockquote data-quote="dun" data-source="post: 777415" data-attributes="member: 34"><p>From johnes.org</p><p>How do animals get infected? </p><p>Johne's disease typically enters a herd or flock of animals when an infected, but healthy-looking, animal is purchased. This infected animal then sheds the organism onto the premises – perhaps onto pasture or into water shared by its new herdmates. Young animals are far more susceptible to infection than are adults: these kids, lambs, or calves swallow the organism along with grass or water. Perhaps they are bottle-fed with MAP-contaminated milk collected from the infected but healthy-appearing new animal. (The milk may become contaminated from the environment (manure-stained teats) or, in the advanced stages of the infection, the bacterium is shed directly into the milk.) Animals may even have been infected before they are born (in utero transmission). Thus the infection spreads, often without the owner's being aware of it.</p></blockquote><p></p>
[QUOTE="dun, post: 777415, member: 34"] From johnes.org How do animals get infected? Johne's disease typically enters a herd or flock of animals when an infected, but healthy-looking, animal is purchased. This infected animal then sheds the organism onto the premises – perhaps onto pasture or into water shared by its new herdmates. Young animals are far more susceptible to infection than are adults: these kids, lambs, or calves swallow the organism along with grass or water. Perhaps they are bottle-fed with MAP-contaminated milk collected from the infected but healthy-appearing new animal. (The milk may become contaminated from the environment (manure-stained teats) or, in the advanced stages of the infection, the bacterium is shed directly into the milk.) Animals may even have been infected before they are born (in utero transmission). Thus the infection spreads, often without the owner's being aware of it. [/QUOTE]
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ANGUS X HOLSTEIN
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