8/3/2023 0 Comments Liver fluke symptomsHCC in the past has also helped to fund research projects examining liver fluke. If the rainfall is heavy an additional dose for out-wintered cattle may be required in May.įurther information on controlling Liver Fluke in cattle can be downloaded hereįurther information on controlling Liver Fluke in sheep can be found on the SCOPS website Routine worming of cattle in December/January should control fluke in average rainfall years. Where fluke is present, excluding cattle from typical snail habitats (low lying we areas, margins of ponds) can reduce fluke infection but complete snail avoidance is impossible as it is very difficult to identify all snail sites.ĭrainage can assist in reducing snail numbers.Ĭhemical control has been used to reduce snail numbers but is no longer available. As fluke tends to be chronic, most will be effective, but seek veterinary advice if you have not treated fluke before. TreatmentĪ large number of anthelminthics are available for treating fluke in cattle. Your veterinarian can also do blood tests which show the extent and severity of liver damage. Diagnosisįaecal egg count, presence of any eggs is suspicious of fluke infection. The principle signs are:Ībdominal swelling due to accumulation of fluid (ascites). In cattle, liver fluke is normally a sub-acute or chronic disease. In the UK liver fluke tends to be more severe in sheep and goats can do considerable harm to cattle. Within the wet areas of the UK, the distribution is entirely dependent upon the presence of the snail host. The disease is commonest in the wetter western areas of the UK and Ireland with the levels of infection and disease being very dependent upon the rainfall from May to October. The signs in the cow are all due to liver damage, with the symptoms varying depending on number of flukes present in the liver. This then develops into a highly resistant non-mobile stage which once eaten by the cow hatches and migrates to the liver. The fluke develops in the snail until developing into another swimming stage which settles on the pasture. These eggs hatch in warm damp conditions to produce mobile larvae which then infect the snail. The adult liver fluke in the liver of the cow produces eggs which pass onto the pasture. The life cycle of the fluke requires the mud snail, Galba truncatula. The predominant rumen fluke species in the. The liver fluke is a flat leaf-like parasite found in the bile ducts of the liver. Detection of liver fluke infection and treatment efficacy may be compromised by the presence of rumen fluke. To view a booklet on Controlling Liver Fluke on Welsh Farms, click here What is Liver Fluke
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