I used mazuri maintenance, set up piles of oyster shell for free choice, and offer egg shells to those that look like they may need more calcium. However, I think your gander will be fine eating breeder food for a couple of months.
Glad she recovered and does not appear to want to keep laying. Be sure to have extra calcium for her before she starts laying. Also, I recommend you do not remove eggs from her nest, since that will cause her to continue laying more eggs. If you do not want her to hatch, then swap her eggs out...
It is very common for first egg of season to have a little blood on it (even the first few eggs), especially with first time layers. However, soft shelled eggs are very bad. I do not mean to alarm you, but you have every reason to be worried. Egg-laying challenges can often be fatal. She...