Open Access
Table 1.
Composition of the abomasal worm community (larvae L4, juveniles and adult worms) of lambs during the six occasions of necropsy.
| Month | April | June | August | October | December | February |
|---|---|---|---|---|---|---|
| Mean number of adult worms | ||||||
| Teladorsagia circumcincta morph circumcincta | 107 | 670 | 2366 | 215 | 37 | 12 |
| Teladorsagia circumcincta morph trifurcata | 30 | 0 | 91 | 60 | 22 | 16 |
| Haemonchus contortus | 0 | 0 | 917 | 271 | 78 | 60 |
| Marshallagia marshalli ** | 87 | 230 | 1099 | 1561 | 689 | 188 |
| Trichostrongylus vitrinus | 0 | 0 | 140 | 69 | 0 | 8 |
| Trichostrongylus axei | 0 | 0 | 0 | 69 | 6 | 0 |
| Total | 224 | 900 | 4613 | 2245 | 832 | 284 |
| Mean number of L4s | 58 | 860 | 135 | 0 | 20 | 0 |
| Percentage of L4s of | ||||||
| T. circumcincta and other Ostertagiinae | 53.4 | 71 | 14.8 | 0 | 50 | 0 |
| Haemonchus contortus | 0 | 11.6 | 11.1 | 0 | 0 | 0 |
| Trichostrongylus sp. | 46.6 | 17.4 | 74 | 0 | 50 | 0 |
| Percentage of L4s in community (L4s/(L4s + juveniles + adults)) | 20.5* | 48.3 | 2.6 | 0 | 2.3* | 0 |
| Mean number of juveniles | 0 | 20 | 350 | 0 | 10 | 0 |
| Percentage of juveniles of | ||||||
| T. circumcincta and other Ostertagiinae | 0 | 100 | 100 | 0 | 0 | 0 |
| Trichostrongylus sp. | 0 | 0 | 0 | 0 | 100 | 0 |
| Percentage of juveniles in community (juveniles/(juveniles + L4s + adults)) | 0 | 1.1 | 6.9 | 0 | 1 | 0 |
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