Table 1 Stud farm data and prevalence of Parascaris spp. egg excretion before and after ivermectin (IVM) treatment
From: A survey of ivermectin resistance in Parascaris species infected foals in south-eastern Poland
Farm | Herd size | Foals | Sex F/M | Age [3/4/5/6 months] | FEC-positive foals | EPG (min–max) | IVM efficacya | ||
|---|---|---|---|---|---|---|---|---|---|
Pre/with EPG ≥ 150 | Post | Pre | Post | Observed FECR | |||||
1 | ≥ 100 | 49 | 34/15 | 6/14/10/19 | 23/22 | 20 | 471 (50–1050) | 400 (50–900) | 57.0 [36.9–74.2] |
2 | ≥ 100 | 40 | 26/14 | 7/10/9/14 | 28/24 | 20 | 2134 (50–13,750) | 1355 (100–5150) | 56.8 [20.3–80.3] |
3 | ≥ 100 | 51 | 35/16 | 4/11/17/19 | 16/15 | 16 | 572 (50–1400) | 341 (50–2050) | 44.0 [6.8–74.5] |
4 | 50–100 | 24 | 14/10 | 4/5/6/9 | 7/3 | 2 | 850 (50–5300) | 200 (50-350) | – |
5 | ≤ 50 | 16 | 9/7 | 3/0/7/6 | 12/8 | 4 | 833 (50–5550) | 325 (100-650) | 86.6 [44.8–96.4] |
6 | 50–100 | 34 | 0/34 | 0/10/6/18 | 6/4 | 1 | 167 (100–250) | 50 | – |
7 | ≤ 50 | 11 | 7/4 | 1/3/5/2 | 7/6 | 1 | 471 (50–1050) | 50 | 96.9 [92.9–100.0] |
Total | 225 | 125/100 | 99/82 | 64 | |||||