Opposite of 'deficient' - Scientific English (Mar/31/2009 )

Your problem arises because you're trying to find the opposite of XY-deficient. But, as I pointed out above (see here), you shouldn't be using XY-deficient when referring to the rats, because "deficient" is not the correct term to describe their state.

When I get myself into such a terminology jam, I find it best to just re-write the section over again, rather than try and bend some term to fit.

Thx HomeBrew. I just put XY+ and XY- in the picture and explained in the text.

with/ null