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Clostridium perfringens Type D

7201

12/30/01

Etiology

Type D is commonly known as "pulpy kidney disease" or "overeating disease." It is fairly common is sheep and goats. It is more likely to attack single well-nourished babies which are receiving a ration with a good deal of concentrates (or grain). This organism is also a normal inhabitant of the soil and digestive flora, but does not cause a problem until it gets out of control
Symptoms
The disease has received a lot more study in sheep where the symptoms may include incoordination (and "stupid" behavior), head pressing, arched back, convulsions and death. In goats, there may be diarrhea and nervous behavior with death occuring later in the course of the disease. The toxins attack the blood vessels of the brain causing behavioral problems. There may also be congestion of the eyes and mucous membranes. Dead animals will frequently be found with undigested food in the intestinal tract. Although known primarily as pulpy kidney disease, the kidneys of goats which die from Type D rarely show any "pulpiness."
Treatment
C and D antitoxin may be helpful.
Prevention
Type C and D toxoid (as in CD/T) given to pregnant dams 3 weeks before delivery will prevent most cases of this disease. The kids should also receive vaccinations. Some sources say to vaccinate kids whose mothers have had pre-natal vaccines at 3 - 4 weeks of age, while others suggest waiting until 10 weeks of age. If given too early, they are of no benefit. Type D toxoid vaccinations frequently leave lumps known as "cold abscesses". Some recommend that these be given in the armpit to reduce damage to the carcass.
Comments
Cl. Perfringens Types C and D toxoids are combined with a tetanus vaccine by most manufacturers in a product known as "CD/T"; we recommend that this product be given to ALL goats.

WWW Resources

Univ of Minnesota

CONSULTANT ©   Cornell's Diagnostic program



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