!6-17wk old poults suffering stress with continual predation by goshawk .Birds still in release pen not eating and wasting away.Same problem on two neighbouring shoots. Live birds delivered to vet confirmed no disease but starvation . After speaking to Kate at Quill we put Quill Lyte plus in water. Took a couple of days for poults to get used to it but after a week all deaths ceased and completely different look to birds. We picked up 30 corpses altogether, Neighbouring shoots lost up to 100. Same diagnosis.