here is a question on feed. most people buy layer feed, starter, grower, flock raiser because that is what is told to them to use. so what is the difference ?
I'm only talking about feed for flocks that will become Layers. I don't raise Broiler chicks and have no experience with that feed regimen.
Each feed bag from the regular companies comes with a tag that shows the analysis. This is the percent or percent range of protein, salt, calcium, and some other stuff. The ones that sound like they came out of a chemistry class are amino acids they need. The basic difference between layer and all the others is the percent range for calcium. That calcium is for the egg shells, as you probably know.
The basic difference in the others is the percent protein. You'll get some minor differences in the other analysis ingredients, but it is generally mainly protein. I'll give some general ranges but this will vary as Galanie just proved. The names will be different for different brands names too.
Starter - 20% to 22% (Some goes to 24% and this is fine but if you check, it is probably for game birds. I used it for a few weeks it when I had a turkey chick with the chicks. No problems)
Grower - 16%
Layer - 16%
Combined Starter/Grower - 20%
Flock Raiser - 20%
Finisher - 15%
You can get it in mash (powder), crumbles, or pellets. There is no difference in percent of the basic ingredients. These differences are mainly to do with how you feed it. Some automatic systems especially are set up for one form or the other. Even if we hand feed, some of us have a preference for one or the other, but there is essentially no difference other than form.
Starter may or may not come "medicated". From any of the major brands of feed for flocks that will be Layers that I am aware of, this is Amprolium. I don't raise meaties but I've heard some of their feed may come with something else. You feed the broilers different than you do flocks that will be layers.
Also on that tag is a list of ingredients, the different grains and things that go in it. This is really important to some people but personally I'm not that concerned about it. I don't freak out about corn, soy, or animal products. To some people that's important. That's their business.
My basic philosophy is to feed a higher protein product when the chicks are first starting out. Whenever that bag runs out after 4 weeks, I switch to a lower protein feed until it is time for Layer. If I have a mixed age where some chicks are too young for Layer, I use Grower or Finisher. I always keep oyster shell offered on the side. After they get a good start, I want to slow down their growth some to give their internal organs and skeleton time to grow and mature to keep up with their weight gain, but that is just a personal preference. Others do it totally differently and do fine.