Clinical Signs
There are three progressive stages of parturient paresis.
During stage one, cows are able to stand but show signs of hypersensitivity and
excitability. Cows may appear restless and bellowing. If calcium therapy is not
instituted, cows will progress to stage two.
In stage two, cows are unable to stand but can maintain sternal recumbency.
Depression, anorexia, dry muzzle, subnormal body temperature, and cold extremities
are seen. Cows often tuck their heads into their flanks or, if the head is extended, an
S-shaped curve to the neck may be noted.
In stage three, cows lose consciousness progressively to the point of coma. They are
unable to maintain sternal recumbency, unresponsive to stimuli, and can suffer severe
bloat. Cardiac output worsens, heart rate can approach 120 beats/min, and pulse may
be undetectable. Cows in stage three may survive only a few hours
Clinical Signs There are three progressive stages of parturient paresis.During stage one, cows are able to stand but show signs of hypersensitivity andexcitability. Cows may appear restless and bellowing. If calcium therapy is notinstituted, cows will progress to stage two.In stage two, cows are unable to stand but can maintain sternal recumbency.Depression, anorexia, dry muzzle, subnormal body temperature, and cold extremitiesare seen. Cows often tuck their heads into their flanks or, if the head is extended, anS-shaped curve to the neck may be noted.In stage three, cows lose consciousness progressively to the point of coma. They areunable to maintain sternal recumbency, unresponsive to stimuli, and can suffer severebloat. Cardiac output worsens, heart rate can approach 120 beats/min, and pulse maybe undetectable. Cows in stage three may survive only a few hours
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