Newton Sparks, [2 Jun 2025 at 13:26:09]: Good day everybody. I need some help with a case. A client has lost about 30 impala. The symptoms shown were weakness, weight loss and severe watery diarrhoea. A post-mortem examination on one that performed a couple of weeks ago showed some wireworm (not a lot), one or 2 protozoal organisms seen on a wet preparation (I thought it was incidental), a couple of coccidia, and one small roundworm found in the liver. I'll attach a video below (maybe its just incidental?) Histopathology was fairly non-specific. Blood was cherry red, so I added some Hypo, but there was no improvement. Stool samples were received 3 weeks later. 5 samples, (2 had diarrhoea), one sample had very high numbers of Strongyloides eggs and some wireworm. Significant! Other 4 samples showed nothing much. I couldn't see any toxic plants. There is enough food in camp, particularly karee - we started 10 days ago with Browse Plus. Nyala, springbok, zebra in same camp showed no deaths. These impalas have been there 10 years – all ages were affected, but particularly younger animals. Any other ideas apart from parasites?? I would have expected higher worm egg counts on other faecal floats, unless the susceptible impala have mostly died out and we are sitting with the resistant ones
