Latin Name:Leucanthemum vulgare, syn. Chrysanthemum leucanthemum
Family Name: Asteraceae/Compositae
The Ox-eye Daisy is part of the Chrysanthemum family, and we know that several species of Chrysanthemum contain Pyrethrins, which are used to make an insecticide.
Although the species listed above in the Latin names are not the ones said to contain Pyrethrins, we would advise you to err on the side of caution and only feed this plant in small quantities and as part of a wider varied diet.