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This is a problem that occurs time to time on dairy farms. At calving time the cow can "go down with milk fever" and the treatment is to hold her steady upright with her legs just on the ground until she wants to take her weight again.
A cow in this situation will often throw the towel in, sulk and give up the will to live. She will never get better even as the farmer tries hard to nurse her well again.
Yet with other cows and seemly hopeless cases, something turns them around, they start feeding and looking for their calves. Within a few days they have recovered enough to release them from the hoist to walk around in a small paddock.
Ref; http://www.das.psu.edu/research-exte...milk-fever.pdfIn the time period shortly before calving, large amounts of calcium are removed from the blood and are utilized in the mammary gland to be part of the colostrum.
Calcium in colostrum may be eight to ten times greater than in the blood supply. The rapid drop and the decreased mass of the calcium pool prior to parturition, and the failure of calcium absorption to increase fast enough after the onset of lactation, can predispose animals to milk fever or hypocalcemia.
There are other probable causes that have been associated with inducing milk fever. They include excessive bone formation due to elevated levels of gonadal hormones and rations containing excessive dietary levels of cations, especially potassium.
In addition, other metabolic disorders can lead to clinical and subclinical hypocalcemia (i.e. ruminal stasis, displaced abomasum, retained placenta, prolapsed uterus, metritis, and ketosis).
The other problem that can occur at calving is the cow can suffer damage to her spinal cord, this is called calving paralysis, this is treated much the same way.
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Last edited by wrinklearthur; 7th May 2012 at 11:10 PM. Reason: all sorts of changes
Alan
2005 Disco 2 HSE
1983 Series III Stage 1 V8
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