Table 3.
Single nucleotide polymorphism frequencies for Haemonchus contortus, Austria Study 1 (Untersweg et al., 2021) (BT = before treatment; PT = post treatment; <1% = below background threshold, *adjusted detection limit due to low background; excl. = excluded as not enough copies of the targeted Haemonchus-DNA were amplified; ND = no data [not analysed or no material available]; bold numbers = resistance alleles detected), R = resistant; SR = suspected resistance; S = susceptible, 95% confidence intervals and relative uncertainty are shown in the supplementary file 4.
| Farm | Drug | % of Haemonchus larvae BT/PT | % F200Y BT/PT | % F167Y BT/PT | % E198A BT/PT | % egg count reduction (95% CI) |
|---|---|---|---|---|---|---|
| 1 | FBZ | 92/88 | 90/93 | excl./1 | 6/3 | 95 (87–99) SR |
| 2 | MOX | 88/ND | 83/ND | 4/ND | 12/ND | 98 (87–100) SR |
| 3 | MOX | 36/86 | 92/excl. | 1/excl. | 3/excl. | 79 (53–97) R |
| 4a | FBZ | 94/90 | 93/81 | 2/excl. | 4/14 | only one animal treated; 30% reduction |
| 4b | MOX | 94/99 | 93/94 | 2/excl. | 4/excl. | 96 (87–99) SR |
| 5 | FBZ | ND/ND | 96/96 | <1/excl. | 4/3 | 96 (92–98) S only 9 animals treated |
| 6 | MOX | 97/ND | 97/94 | 1/excl. | 2/3 | 97 (87–100) SR only 9 animals treated |
| 7 | MOX | 25/100 | 95/94 | 1/1 | 2/5 | 99 (97–100) S |
| 8 | no treatment | ND/ND | 97/ND | 1/ND | 2/ND | not done |
| 9 | MOX | ND/ND | 89/ND | excl./ND | 3/ND | 100 (99–100) S |
| 10 | MOX | 60/ND | 96/97 | <6*/1 | excl./1 | 98 (92–100) S |
| 12a | FBZ | 47/99 | 96/96 | excl./excl. | 3/excl. | 48 (23–66) R |
| 12b | MOX | 47/99 | 96/95 | excl./<4* | 3/5 | 84 (61–96) R |