Egyed M N, Shlosberg A, Eilat A, Malkinson M
Vet Rec. 1975 Sep 13;97(11):193-9. doi: 10.1136/vr.97.11.193.
The acute and chronic symptoms seen in ducks following Ammi majus induced photosensitisation are described. The acute changes were inflammatory in nature whereas the chronic changes included severe deformities of the beak and footwebs, mydriasis and eccentric location of the pupil.