Just to mention KittyKat we will soon be starting the incubator to hatch Leghorn Bantam pullets. So we have just bought a 10Kg bag of chick crumb and have translated the contents fearing that one on the list may be ACS, which we don't want. Good news is that there appears to be no ACS additive (more translation required though) and furthermore it contains a permitted enzyme which acts as a probiotic improving digestion and hence growth rates. It's called 6-Phytase. Quite why they don't use it in the UK I don't know, but this crumb is specifically for the very small poultry keeper in the countryside. Poultry keeping in towns has only just started here and is so unusual one couple were mentioned in last weeks TV news!
Just edited to add that we have translated all the components and there is in fact a cocktail of enzymes in the feed, each targeted to assist in digesting different things, like cellulose and protein. These chicks are going to grow fast and be very healthy I think. I'm wondering if we should use a mash made of this to build up our sickies after antibiotics?