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| | ===Clincal Signs=== | | ===Clincal Signs=== |
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| − | | + | Lamb dysentery often presents as sudden death of lambs less than 2-3 weeks old<sup>sargison, lewis, merk, songer<sup>. When clinical signs are seen, these include cessation of suckling, depression and recumbency<sup>merck</sup>. Animals suffer acute abdominal pain, and semi-fluid blood-stained faeces may be passed<sargison, leis merck, sanger</sup>. However, the rapid course of disease means that faeces are often observed to be normal. In 2-3 week old lambs, lamb dysentery may present with non-specific neurological signs<sup>sargison</sup>. |
| − | Affected lambs are usually less than two weeks old, but sporadic suffen death of stronger single lambs does occur. Lambs may be seen with acute abdominal pain but die within four hours. Faeces are usually normal, but can be semi-fluid and blood stained.
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| − | merck: Lamb dysentery is an acute disease of lambs <3 wk old. Many may die before signs are seen, but some newborn lambs stop nursing, become listless, and remain recumbent. A fetid, blood-tinged diarrhea is common, and death usually occurs within a few days
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| − | songer: In lambs, inappetence, abdominal
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| − | pain and bloody diarrhea are followed
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| − | by recumbency and coma. Lesions consist
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| − | primarily of hemorrhagic enteritis,
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| − | with evidence of enterotoxemia (Frank,
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| − | 1956). Chronic disease in older lambs
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| − | (’pine’) is characterized by chronic
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| − | abdominal pain without diarrhea | |
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| − | sargison: Outbreaks of lamb dysentery are initially characterised
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| − | by the sudden death of young lambs, but slower
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| − | onset disease, manifesting as acute abdominal pain and
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| − | non-specific nervous signs, is sometimes seen in older,
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| − | two- to three-\veek-old lambs. Faeces may be semi-fluid
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| − | and blood stained although, in most cases, they are normal
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| − | due to the rapid course of the disease.
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| | ===Laboratory Tests=== | | ===Laboratory Tests=== |