2 of my chickens haven't started laying. ...33 weeks
1 of my chickens is kinda molting so is not laying
the other 2 chickens seem to be trading off who lays that day due to sunlight hours.
Should I stop feeding them layer food and just have calcium available if needed? I don't want them getting impacted or prolapsed or what ever horrible thing might happen to them if they get too much calcium. (I have upped their BOSS intake due to winter and the molting)

1 of my chickens is kinda molting so is not laying
the other 2 chickens seem to be trading off who lays that day due to sunlight hours.
Should I stop feeding them layer food and just have calcium available if needed? I don't want them getting impacted or prolapsed or what ever horrible thing might happen to them if they get too much calcium. (I have upped their BOSS intake due to winter and the molting)