Case Study: Recommended Strongyle PCR testing for Drench Resistance in Goats
A herd of mature goats had sporadic deaths over the past 12 months. Typical presentation was chronic scour and weight loss in spite of drenching.
When investigated by the vet, blood was taken from a severely affected goat before it was euthanized. A post-mortem was completed and the findings presented two main differentials – parasitism and Johne's disease.
The faeces were normal but the FEC revealed 4500 epg, all of which were Strongyles.
The blood work revealed several changes, the most important of which was severe anaemia (Hct = 0.06, Hb = 30) and the albumin was reduced.
The histopathology showed widespread eosinophilic enteritis and colitis with intraluminal nematode parasites evident. Testing for Johne's disease was negative.
Additional Comments: The case study presents a typical drench resistance scenario. When working up a diarrhoea case consider our Strongyle PCR test, which is essentially a drench check. It replaces the old larva culture, which is the test traditionally completed to check for drench resistance. The Strongyle PCR test is faster and cheaper than the old parasite larva culture testing.
Written by Dr Celia Hooper
BVSc, MS, PhD, Diplomate ACVP
Specialist Veterinary Pathologist at Gribbles
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