Dogs are unlikely to associate pain with predation behaviors. They're more likely to associate pain with the spot they were standing when they were shocked than with predatory behavior.
The only way this training works without high risk of poor welfare for the dog is when the pain is applied when the dog makes contact with the prey. That's clearly unacceptable for the cats' safety and welfare. https://www.sciencedirect.com/science/article/pii/S0168159106003820
E-collars are high-risk and there's no evidence of benefit as compared to positive reinforcement training (such as predation substitute training)
The Welfare Consequences and Efficacy of Training Pet Dogs with Remote Electronic Training Collars in Comparison to Reward Based Training
This study investigated the welfare consequences of training dogs in the field with manually operated electronic devices (e-collars). Following a preliminary study on 9 dogs, 63 pet dogs referred for recall related problems were assigned to one of three Groups: Treatment Group A were trained by...journals.plos.org
Efficacy of Dog Training With and Without Remote Electronic Collars vs. a Focus on Positive Reinforcement
We assessed the efficacy of dog training with and without remote electronic collars compared to training with positive reinforcement. A total of 63 dogs with known off-lead behavioral problems such as poor recall were allocated to one of three training groups (each n = 21), receiving up to 150...www.frontiersin.org
are you saying you don't like the electric collar method?
