Gastrointestinal nematodes of dairy goats, anthelmintic resistance and practices of parasite control in Northern Italy

Table 5 Mean abundance (A), prevalence (P), importance value (I) and location of gastrointestinal nematodes recovered in dairy goats

Nematode species	A (SD°)	Min-Max	P (%)	I
				Values	Categories^§
Abomasum
Teladorsagia circumcincta	558.62 (896.06)	0-3500	73	92.47	D
Haemonchus contortus	69 (288.29)	0-1900	46	7.2	D
Spiculopteragia spiculoptera morph spiculoptera	2.44 (8.23)	0-40	11	0.06	CO-D
Teladorsagia pinnata	0.91 (3.54)	0-21	9	0.018	CO-D
Teladorsagia trifurcata	0.33 (2.23)	0-15	2	0.016	CO-D
Trichostrongylus axei	0.44 (1.44)	0-5	8	0.008	S
Ostertagia ostertagi	0.55 (2.19)	0-10	6	0.008	S
Ostertagia leptospicularis	0.44 (1.79)	0-10	6	0.006	S
Spiculopteragia spiculoptera morph mathevossiani	0.33 (1.65)	0-10	4	0.003	S
Ostertagia lyrata	0.11 (0.74)	0-5	2	0.0006	S
Small intestine
Trichostrongylus colubriformis	444.31 (1431.91)	0-7200	34	95.99	D
Nematodirus lanceolatus	41.21 (185.87)	0-1000	14	3.56	D
Nematodirus spathiger	4.65 (24.12)	0-130	7	0.2	CO-D
Bunostomum trigonocephalum	1.83 (5.94)	0-30	13	0.16	CO-D
Trichostrongylus capricola	0.68 (3.71)	0-20	3	0.014	CO-D
Nematodirus sp	1.03 (4.09)	0-20	7	0.04	CO-D
Nematodirus filicollis	0.17 (0.93)	0-5	7	0.007	S
Trichostrongylus vitrinus	0.17 (0.93)	0-5	3	0.003	S
Cooperia pectinata	0.17 (0.93)	0-5	3	0.003	S
Strongyloides papillosus	0.17 (0.93)	0-5	3	0.003	S
Large intestine
Skrjabinema caprae	1059.34 (1321.72)	0-6244	95	89.03	D
Oesophagostomum venulosum	50.92 (73.22)	0-275	58	2.61	D
Chabertia ovina	2.42 (5.88)	0-20	21	0.04	CO-D
Trichuris ovis	4.18 (20.16)	0-123	11	0.039	CO-D
Total adult nematodes
Abomasum	1370.08 (1999.53)	0-8165	80
Small intestine	1870.17 (4146.71)	0-19580	78
Large intestine	2862.68 (3409.54)	0-16337	97

°SD = standard deviation.
^§Based on importance values helminth species were classified into categories; Dominant (D), species strongly characteristic of the community (I > 1.0), Codominant (CO-D) species contributing significantly to the community (0.01 < I < 1.0), Subordinate species occurring infrequently, they do not contribute significantly to the community (0 < I < 0.01).

ISSN: 1746-6148