Thanks guys, I don't have any white fish in at the moment only salmon - so I doubt that would be ok.

The biggest question is how much?
She is a little pig and always acts half starved so I can't trust her judgement on it.
I don't know how much she weighs but she is 6mths old and quite a petite Tonk (probably on a par with a meezer of the same age)
Should I just cook I breast of chicken and give her a few strips at a time over the evening?

Thanks xx