Orange shavings

[Lovepigs]

Hi guys,
I appreciate we aren't vets here but before I over react can anyone advise?

I have found orange/red patches of wood shavings where the GPS have wee'd. I know that the shavings can oxidise and change colour, this just seems extra bright. I haven't seen this much before.
They haven't had beetroot either! They did have purple cabbage last night could that be the culprit or something more serious?

 

[Piggies&buns]

Yes urine does oxidise and it could also be the cabbage causing the colour change.
I would keep an eye on it for now and see if it continues and any other symptoms occur if they do, then see a vet