Table 1. Effective concentrations of cinnamaldehyde, citronellal, anacardic acid and geraniol for inhibiting 50% and 95% of egg hatching (EC50 and EC95), confidence intervals (95% CI) and resistance factors for Haemonchus contortus isolates KOK, ISE and ECH.
| H. contortus isolates | EC50 (μM) | 95% CI | RF50 | EC95 (μM) | 95% CI | RF95 | |
|---|---|---|---|---|---|---|---|
| KOK | 133.6 | (128.5 - 138.9) | 0.94 | 295.6 | (263.5 - 337.6) | 0.98 | |
| Cinnamaldehyde | ISE | 142.8 | (137.7 - 148.1) | 1.00 | 301.1 | (270.4 - 340.8) | 1.00 |
| ECH | 133.2 | (126.7 - 140.0) | 0.93 | 283.2 | (245.8 - 335.8) | 0.94 | |
| KOK | 294.5 | (268.6 - 322.9) | 0.95 | 1,083.1 | (801.9 - 1,615.2) | 0.33 | |
| Citronellal | ISE | 308.7 | (276.6 - 344.5) | 1.00 | 3,317.3 | (2,300.2 - 5,120.1) | 1.00 |
| ECH | 350.6 | (322.4 - 381.3) | 1.14 | 2,008.2 | (1,494.2- 2,892.9) | 0.61 | |
| KOK | 16.97 | (16.30 - 17.67) | 0.42 | 46.12 | (44.30 - 48.02) | 0.89 | |
| Anacardic acid | ISE | 40.44 | (27.67 - 59.12) | 1.00 | 52.02 | (35.60 - 76.10) | 1.00 |
| ECH | 34.79 | (32.51 - 37.23) | 0.86 | 75.23 | (70.29 - 80.50) | 1.45 | |
| KOK | 651.60 | (604.3 - 702.6) | 0.93 | 1,851.14 | (1,716.77 - 1,996.03) | 0.61 | |
| Geraniol | ISE | 697.90 | (659.9 - 738.1) | 1.00 | 3,028.71 | (2,863.80 - 3,203.17) | 1.00 |
| ECH | 681.70 | (635,9 - 730,8) | 0.98 | 3,440.26 | (3,209.13 - 3,688.05) | 1.14 |
EC50: effective concentration for inhibiting 50% of egg hatching; EC95: effective concentration for inhibiting 95% of egg hatching; 95% CI: 95% confidence interval; RF50: resistance factor for EC50 (EC50 of isolate X/EC50 for the ISE isolate); RF95: resistance factor for EC95 (EC95 of isolate X/EC95 for the ISE isolate).