TASER CEWs have been an effective option for dealing with aggressive animals and have generally been successful in most deployments. The TASER 7 CEW uses similar technology, but does not yet have the same service record as the prior models.
Note: If a probe deployment completed circuit is initiated and maintained, the aggressive animals are usually incapacitated/stunned momentarily in previous-generation CEW deployments, but recover quickly. The vast majority of the animals quickly left the scene and broke the wires.
If deployed on a domestic animal, consider having animal control available to restrain the animal.