Bought some veta farm breeding aid today mostly bcoz my girl gould has gone all vulture on me again and thought it may help , that and having her tubes tied

anyhoo it says to rub it into the seed (done it ) my question is ...Is this a daily task or can I do enough to fill the hoppers which get topped up every couple of days .
It is mostly omega 3 oils and some vitamins / minerals , will it go off in the hopper ?