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Calf dropping ears.
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<blockquote data-quote="hillsdown" data-source="post: 453555" data-attributes="member: 5106"><p>Could be septicemia. Did you iodine the naval when he was born?</p><p></p><p><a href="http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/51400.htm" target="_blank">http://www.merckvetmanual.com/mvm/index ... /51400.htm</a></p><p> </p><p>Encephalitis is the most readily recognized form of listeriosis in ruminants. It affects all ages and both sexes, sometimes as an epidemic in feedlot cattle or sheep. The course in sheep and goats is rapid, and death may occur 24-48 hr after onset of signs; however, the recovery rate can be up to 30% with prompt, aggressive therapy. In cattle, the course is less acute, and the recovery rate approaches 50%. Lesions are localized in the brain stem, and the signs indicate dysfunction of the third to seventh cranial nerves. </p><p>Initially, affected animals are anorectic, depressed, and disoriented. They may propel themselves into corners, lean against stationary objects, or circle toward the affected side. Facial paralysis with a drooping ear, deviated muzzle, flaccid lip, and lowered eyelid often develops on the affected side, as well as lack of a menace response and profuse, almost continuous, salivation; food material often becomes impacted in the cheek due to paralysis of the masticatory muscles. Terminally affected animals fall and, unable to rise, lie on the same side; involuntary running movements are common. </p><p></p><p>Treatment and Control: </p><p>L monocytogenes is susceptible to penicillin (the drug of choice), ceftiofur, erythromycin, and trimethoprim/sulfonamide. High doses are required because of the difficulty in achieving minimum bactericidal concentrations in the brain. Recovery depends on early, aggressive antibiotic treatment. If signs of encephalitis are severe, death usually occurs despite treatment. </p><p>Penicillin G should be given at 44,000 U/kg body wt, IM, daily for 1-2 wk; the first injection should be accompanied by the same dose given IV. Supportive therapy, including fluids and electrolytes, is required for animals having difficulty eating and drinking. </p><p></p><p></p><p>Treatment and Control: </p><p>L monocytogenes is susceptible to penicillin (the drug of choice), ceftiofur, erythromycin, and trimethoprim/sulfonamide. High doses are required because of the difficulty in achieving minimum bactericidal concentrations in the brain. Recovery depends on early, aggressive antibiotic treatment. If signs of encephalitis are severe, death usually occurs despite treatment. </p><p>Penicillin G should be given at 44,000 U/kg body wt, IM, daily for 1-2 wk; the first injection should be accompanied by the same dose given IV. Supportive therapy, including fluids and electrolytes, is required for animals having difficulty eating and drinking.</p></blockquote><p></p>
[QUOTE="hillsdown, post: 453555, member: 5106"] Could be septicemia. Did you iodine the naval when he was born? [url=http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/51400.htm]http://www.merckvetmanual.com/mvm/index ... /51400.htm[/url] Encephalitis is the most readily recognized form of listeriosis in ruminants. It affects all ages and both sexes, sometimes as an epidemic in feedlot cattle or sheep. The course in sheep and goats is rapid, and death may occur 24-48 hr after onset of signs; however, the recovery rate can be up to 30% with prompt, aggressive therapy. In cattle, the course is less acute, and the recovery rate approaches 50%. Lesions are localized in the brain stem, and the signs indicate dysfunction of the third to seventh cranial nerves. Initially, affected animals are anorectic, depressed, and disoriented. They may propel themselves into corners, lean against stationary objects, or circle toward the affected side. Facial paralysis with a drooping ear, deviated muzzle, flaccid lip, and lowered eyelid often develops on the affected side, as well as lack of a menace response and profuse, almost continuous, salivation; food material often becomes impacted in the cheek due to paralysis of the masticatory muscles. Terminally affected animals fall and, unable to rise, lie on the same side; involuntary running movements are common. Treatment and Control: L monocytogenes is susceptible to penicillin (the drug of choice), ceftiofur, erythromycin, and trimethoprim/sulfonamide. High doses are required because of the difficulty in achieving minimum bactericidal concentrations in the brain. Recovery depends on early, aggressive antibiotic treatment. If signs of encephalitis are severe, death usually occurs despite treatment. Penicillin G should be given at 44,000 U/kg body wt, IM, daily for 1-2 wk; the first injection should be accompanied by the same dose given IV. Supportive therapy, including fluids and electrolytes, is required for animals having difficulty eating and drinking. Treatment and Control: L monocytogenes is susceptible to penicillin (the drug of choice), ceftiofur, erythromycin, and trimethoprim/sulfonamide. High doses are required because of the difficulty in achieving minimum bactericidal concentrations in the brain. Recovery depends on early, aggressive antibiotic treatment. If signs of encephalitis are severe, death usually occurs despite treatment. Penicillin G should be given at 44,000 U/kg body wt, IM, daily for 1-2 wk; the first injection should be accompanied by the same dose given IV. Supportive therapy, including fluids and electrolytes, is required for animals having difficulty eating and drinking. [/QUOTE]
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