Changes

===Laboratory Tests===

===Laboratory Tests===

This is performed primarily on the clinical findings, seasonal  occurance, as well as a previous history of fasciolosis on the farm.  These along with post-mortem form the basis for diagnosis of Fasciola  hepatica. In practice, diagnosis of ovine fasciolosis is often more  straightforward than bovine fasciolosis.

Certain laboratory tests can be performed to help make a diagnosis.  

Examination  of faeces for liver fluke eggs is also useful, and may be complemented  by laboratory tests.  Firstly the measurement of Glutamate dehydrogenase  (GLDH) is used.  This is an enzyme released by damaged hepatic cells,  and levels become elevated within the first few weeks of infection.  Another test commonly used is measuring the glutamyl transpeptidase  (GGT), and this indicates damage to the epithelial cells of the bile  ducts, and is seen later in the cycle, and maintained for a longer  duration.

Examination  of faeces for liver fluke eggs is also useful, and may be complemented  by laboratory tests.  Firstly the measurement of Glutamate dehydrogenase  (GLDH) is used.  This is an enzyme released by damaged hepatic cells,  and levels become elevated within the first few weeks of infection.  Another test commonly used is measuring the glutamyl transpeptidase  (GGT), and this indicates damage to the epithelial cells of the bile  ducts, and is seen later in the cycle, and maintained for a longer  duration.