Regular feeding or feeding of a pet and feeding to prepare for eggs are two different things, a month before starting to pair feeding should be slightly increase.
Keep in mind that the whole breeding process is very demanding and that once a female has ovulated and sometime before that she will not eat at all.
At the beginning of the breeding season you will see an increase in appetite and a voracity that you will not see during the year, this is the female getting herself ready for egg production.