In vitro migration of Dictyocaulus viviparus larvae: migration of the infective stage inagar gel. |
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Authors: | R J Jorgensen |
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Affiliation: | The Danish Agricultural and Veterinary Research Council, Parasitological Research Group, Institute of Internal Medicine, Royal Veterinary and Agricultural University, Bülowsvej 13, 1870 Copenhagen V, Denmark |
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Abstract: | The infective stage of the cattle lungworm, Dictyocaulus viviparus, was able to migrate in agar gel when activated by bile. The number of larvae which penetrated the upper surface of a 2 mm thick agar layer was counted and found to be independent from the agar concentration. Larvae which had migrated out of the agar remained on the surface and did not re-enter. The agar migration process was temperature dependent. Influence of time as well as dependency of agar thickness was investigated. The significance of these findings is discussed. |
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Keywords: | migration nematode agar gel bile |
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