I might upset the other guys ;) but here is my opinion based on my experience.you know the mantra "we are all different blabla...:)"
I would keep having ejaculation at least one per month. My logic is to keep the system functioning and avoiding keeping the semen too much in. Sometimes might create problems. After the ejaculation - next day take some zinc for several days and vitamin C and stop the sport that day and day after.
In my country for this kind of problem we use raw royal jelly for 3-4 weeks or so called Celery root salad with mayo. I cant due to my problem :) but i have used before with great success both for volume and stamina.
I also noticed a decrease of volume since AF and i also guess its from downsizing the system. In my case AF is corelated with candida and bacterial infections - and i think they have their role.