Partial protection and abomasal cytokine expression in sheep experimentally infected with Haemonchus contortus and pre-treated with Taenia hydatigena vesicular concentrate

•The administration of a Taenia hydatigena larvae vesicular concentrate (ThLVC) reduced the implantation of H. contortus larvae in lambs.•ThLVC-induced protection is associated to the expression of certain types of cytokines.•The ThLVC is a non-specific immune stimulator for the abomasal immune response. The abomasal expression of IL-2, IL-4, IL-6, IL-10 and IFNγ in lambs experimentally infected with Haemonchus contortus and its relationship to protection induced by a Taenia hydatigena larvae vesicular concentrate (ThLVC) were evaluated. The lambs that were only infected with H. contortus larvae showed a worm burden greater (p