Quantification of resistant alleles in the β-tubulin gene of field strains of gastrointestinal nematodes and their relation with the faecal egg count reduction test

Table 4 Allele frequencies after IVM treatment for T. circumcincta SNPs 167 and 198/200, and T. colubriformis SNP 198/200, and morphological identification

Farm	% Egg reduction	R/S classification	T. colubriformis		T. circumcincta			% L3 species
Farm		R/S classification	% SNP200	% SNP198	% SNP200	% SNP198	% SNP167	Tc	Tri
1	37.3	R	23.3	6.4	0	0	0	63	37
2	100	S	97.3	0	0	0	0	54	46
3	86.0	R	79.2	14	0	0	2.4	41	59
4	−11.9	R	94.7	0	0	0	0	60	40
5	99.3	S	93.7	1	-	-	0	50	50
6	100	S	-	-	0	0	3	54	46
7	95.9	S	100	14	0	0	0	70	30
8	100	S	89.9	6.1	-	-	0	-	-
9	93.5	Borderline	95	2.4	0	0	6.1	44	56

ISSN: 1746-6148