im new to this, its actually my first year breeding, but i would think that as long as she was 1500 or more before she goes off of feed (or begins producing follicles or ovulates) that she should be fine. The way i see it, she cant fit any food in with as stuffed as she is with eggs, so if she's up to weight before that, she should be fine. but hopefully someone with more experience can elaborate, or disagree as needed. hope im right and that this helps!!