So I have 4 hens and a rooster. They are 19 weeks, but it has been traumatic for them in the week they have been here. My Olde English Bulldogge is a chicken killer. He got 2. Now a shock collar is being delivered and he is tied up when the coop is open. Will the stress of that cause the egg laying to be delayed? They don't seem to want to even come up of the coop during the day.