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Cattle Boards
Health & Nutrition
respiratory infection....pretty gross
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<blockquote data-quote="Koffi Babone" data-source="post: 1168790" data-attributes="member: 22429"><p>Ketosis occurs when the animal is in negative energy balance. That is, it is not getting enough energy for the amount it is spending. This typically happens in dairy cattle a few weeks after calving. The explanation is because they are reaching peak milk production (which requires a tremendous energy input) and they are incapable of eating enough "energy".</p><p></p><p>There are lab sticks (or powders) that can be dipped in milk to test for this problem (they will turn purple). A blood sample can also be used, but the machine that takes the reading is fairly expensive if I recall correctly.</p><p></p><p>Though on paper this is possible in a younger animal, it would not be very high on the differential, especially if there is no reason to suspect that energy intake is less than energy expenditure.</p><p></p><p>On another note, I have seen in the past a cow that seemed to be fairly ok (no fever, rapid breathing, lung sounds on one side, nothing on the other side), but was a poor "doer" and was in the "chronic pen". She was euthanised, the necropsy revealed that she had lost a lung (the side where there was no sound). What was left of the lung ressembled yellow pea soup. It was actually quite amazing that she was still standing and able to avoid us before euthanasia...</p></blockquote><p></p>
[QUOTE="Koffi Babone, post: 1168790, member: 22429"] Ketosis occurs when the animal is in negative energy balance. That is, it is not getting enough energy for the amount it is spending. This typically happens in dairy cattle a few weeks after calving. The explanation is because they are reaching peak milk production (which requires a tremendous energy input) and they are incapable of eating enough "energy". There are lab sticks (or powders) that can be dipped in milk to test for this problem (they will turn purple). A blood sample can also be used, but the machine that takes the reading is fairly expensive if I recall correctly. Though on paper this is possible in a younger animal, it would not be very high on the differential, especially if there is no reason to suspect that energy intake is less than energy expenditure. On another note, I have seen in the past a cow that seemed to be fairly ok (no fever, rapid breathing, lung sounds on one side, nothing on the other side), but was a poor "doer" and was in the "chronic pen". She was euthanised, the necropsy revealed that she had lost a lung (the side where there was no sound). What was left of the lung ressembled yellow pea soup. It was actually quite amazing that she was still standing and able to avoid us before euthanasia... [/QUOTE]
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respiratory infection....pretty gross
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