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

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

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   
  1. °SD = standard deviation.
  2. §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).