6/12/2023 0 Comments Liver fluke in stool![]() The symptoms are sudden (distended painfull abdomem, anemia, anorexia) and death can occur in a short time. If massive numbers of the parasite are ingested over a short time then there is tremendous injury to the liver. ![]() Symptoms of liver fluke infection can be acute or chronic. Finally the immature fluke enters a bile duct, matures, and begins to produce eggs - all about 8 weeks after infection. They penetrate the liver capsule and wander around, growing, and destroying tissue. The ingested metacercariae penetrate the intestinal wall and migrate through the abdominal cavity to the liver. Several stages of development take place within the snail and in 5 to 8 weeks cercariae are released into the enviornment, and swim to a nearby plant, attach to the herbage, encyst, and wait to be ingested by the goats. The eggs hatch optimally at 26oC and it must be at least 10oC for further development. The eggs hatch within 10 to 12 days and invade the intermediate host snails. The adult flukes reside in the bile tract of hosts such as goats, sheep, deer, etc and lay eggs that are passed via the bile duct to the feces. Since fluke infection needs an intermediate host (water snails), which in turn need a wet poorly drained enviornment, these infections have been a direct consequence of the high rainfall and favourable temperatures of last summer.įluke infection diagnosed on several Manitoba farms in 2005 was due to Fasciola hepatica, which is 18 to 32 mm in length and 7 to 14 mm wide. Several producers in Manitoba have encountered problems with liver flukes.
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