Any chicken can have it. Also called all flock or flock raiser, some people keep all their chickens on it with calcium on the side. Except for a little more protein and less calcium, it is almost the same as layer food. The reason people who have roosters feed the roosters grower is because of the low calcium content. The high calcium content in layer is bad for roosters.
I give my young chicks pullet grower from 6 weeks and older up untill about 5months and then put them on a layer scratch mix.the layer scratch mix is more suitable for both the hens and rooster