The larger the quantity of colostrum you are treating, the easier it is to maintain the temperature for the necessary time period. We use a double boiler and make sure our thermometer is accurate. If it falls below 135 it will not effectively kill the CAE virus. If the colostrum goes over this temperature, it will become pudding-like and be unusable. You need to hold the colostrum at 135-140 degrees for 60 minutes. Heat treating colostrum is a tedious and laborious process. You must heat treat colostrum and pasteurize milk and bottle feed it to the kids. To raise goats on CAE prevention means pulling the kids at birth and never allowing them to nurse from their dams. Fortunately, it is one that is easily prevented. Watching any goat (but especially one you and your children love) develop these symptoms should convince you that CAE is a terrible disease. The progressive weight loss also can occur with any of the other forms of the disease.” The final major form of CAE viral infection is chronic progressive weight loss. The mastitis usually is observed around parturition. Clinical signs include a firm, distended udder from which milk cannot be expressed. Mastitis, especially interstitial mastitis, is another form of CAE. It has also been noted that enlarged lymph nodes may contribute to some of the respiratory distress. Later, chronic dyspnea, weight loss, tachypnea, and abnormal lung sounds can develop. Initially, a deep chronic cough can be observed. Affected kids are afebrile unless a secondary disease present.ĬAE viral infection also can cause chronic interstitial pneumonia. The kids can remain bright, alert, and responsive early in the disease process, but more commonly display additional neurologic deficits including depression, nystagmus, abnormal pupillary response, blindness, head tilt, head tremor, dysphagia, torticollis, circling, and facial nerve deficits. If only the hindlimbs are affected, these kids have been seen to pull themselves around with their forelimbs. Eventually, the animal is unable to rise to a standing position. A gradual paresis and paralysis, more commonly affecting the hindlimbs and often progressing to the forelimbs, can occur. The kids may show incoordination and inappropriate placement of limbs while standing and walking. The encephalitic form of CAE viral infection most commonly affects kids between 2 and 6 months of age. Eventually these signs lead to a painful arthritis. More severe arthritic signs can include acute swellings without pain upon palpation joints that are drained of the fluid simply refill. Subtle signs include stiffness, shifting leg lameness, decreased ambulation, weight loss, reluctance to rise, and abnormal posture after rising. Early arthritic signs may be subtle or severe. All synovial membranes can be affected by CAE virus, and the number of joints affected in any one animal can vary. Joints that are commonly affected (in descending prevalence) include: carpal joints, tarsal joints, stifle joints, fetlock joints, alantooccipital joint, and coxofemoral joints. “Most goats infected with CAE virus are asymptomatic, but there are five major clinical presentations associated with viral infection including arthritis, encephalitis, interstitial pneumonia, mastitis, and progressive weight loss.9,16 The arthritic form of CAE viral infection is the most common manifestation of the disease and is generally observed in sexually mature goats (6 months and older).12,16 The arthritis tends to be chronic and progressive, though there have been reports of a sudden onset of lameness. I don’t usually quote large sections of information from other sources, but I wanted people to be aware of the severity of CAE symptoms, so I’m directly quoting this information on the symptoms of CAE from the Veterinary Clinical Pathology Clerkship Program from the University of Georgia: It is not passed from feces, breeding, or sharing food and water. Goats pass CAE to each other via infected colostrum, milk, or blood. It is a virus that affects goats and not humans. CAE stands for Caprine Arthritis Encephalitis.
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