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Table 2 Results of in vitro egg hatch test (EHT) and larval development test (LDT) in goat herds A & B

From: The first report of multidrug resistance in gastrointestinal nematodes in goat population in Poland

Anthelmintic agent (DD)

EHT

June 2018

LDT

June 2018

LDT

January 2020

TBZ μg/ml

(0.10)

TBZ μg/ml

(0.08)

IVM ng/ml

(21.6)

LEV μg/ml (2.0)

TBZ μg/ml

(0.08)

IVM ng/ml

(21.6)

LEV μg/ml (2.0)

 

Corrected percentage (CI 95%) of

 

hatching eggs at DD

developing infective L3 larvae at DD

Herd A

98.5 (95.6, 99.5)

85.2 (81.7, 88.1)

99.8 (97.8, 100)

43.2 (36.9, 49.7)

Herd B

96.4 (92.8, 98.2)

87.4 (82.8, 90.9)

93.4 (89.6, 95.9)

62.2 (54.6, 69.3)

27.3 (21.6, 33.9)

56.2 (49.3, 62.9)

85.6 (80.0, 89.8)

  1. FBZ fenbendazole, IVM ivermectin, LEV levamisole, DD discriminating dose