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Table 2 Faecal Egg Count Reduction Test performed on 9 studs.

From: Anthelmintic efficacy on Parascaris equorum in foals on Swedish studs

Farm AH Group size* Group mean EPG d 0 Group mean EPG d 14 Max EPG d 0 Max
EPG d 14
FECR 1
d 14
FECR 2
d 14
1 iv 6 525 58 1100 200 78% 85%
2 iv 7 336 0 1350 0 100% 100%
3 iv 7 1157 721 4000 2300 7% 11%
4 iv 7 900 907 2600 1500 2% 0%
5 iv 6 283 125 500 250 24% 56%
6 iv 9 1194 961 3500 2200 1% 0%
4 fbz 3 1417 0 3550 0 100% 100%
7 fbz 5 700 0 1000 0 100% 100%
8 fbz 5 1750 0 2900 0 100% 100%
7 pyr 9 1133 34 2400 200 94% 93%
9 iv+pyr 2 125 5 150 10 91% 95%
  1. AH - anthelmintic; iv - ivermectin; fbz - fenbendazole; pyr - pyrantel; EPG - number of eggs per gram faeces; mean EPG - arithmetic mean; d 0 - day of anthelmintic treatment; d 14 - 14 days following anthelmintic treatment; FECR - Faecal Egg Count Reduction.
  2. * Only foals with at least 100 EPG included
  3. 1 Arithmetic means of transformed individual FECRs (Pook et al. 2002)
  4. 2 Arithmetic means of individual FECRs