Quote: No criticism here, but I'd like to add just to clarify this... please note that you should NOT avoid animal proteins... your chickens need animal proteins. Many of us who ferment ferment only our grains and then add the premix ingredients such as fish meal, nutribalancer, meat and bone meal, limestone, etc... to the fermented grains.
I keep a container of dry ground grains and a container of premixed powder ingredients. I ferment the grains, and when I weigh out my ff each morning I then add (by weighing) the appropriate amount of premix powder to the ff and then stir and tada...
Please note... if you are feeding by weight (or parts) you need to account for the increase in weight of your grains from dry to wet... this is easily done by weighing only 1 lb of your grains, fermenting that one lb by itself, and then weighing it again. For instance my fermented grains are 2.25 times the weight of my dry grains. This means that 2.25 lbs of wet grains get the equivalent of premix that would be required for only 1 lb of dry grains.
Yes.. I keep an excel spreadsheet in the feed room that calculates all this.
I purposely have the same grain combinations for chicks as for laying hens so that I always grind the same ratios of dry grains for all management groups and then I simply have two different buckets of premix already made up (I do this about once a week), so that I add the premix according to each management group - more limestone for layers, more protein for chicks.
Hope that helps