Quote: Wheat... several problems arise with wheat which can be overcome if you are diligent. The max fed in any poultry diet should be no more than 50% due to being extremely deficient in amino acids. It should be noted it is also extremely inconsistent and difficult to analyze... so protein content will vary a lot. If you are going to add it to FF, do not grind it fine, it becomes very sticky when wet and can cause beak impaction.
Firmer stools can also be an effect... this could be good or bad... too much wheat could cause constipation.
I suspect many photos you see of chicks who have been eating FF and have messy faces have wheat in them. Cute as they are, I don't believe the reason behind those messy faces (even for chicks) is a good idea.
I personally like wheat and use a little at times. Make sure you know what you are looking for... hard winter being more desirable than soft.
So... like any ingredient... balance is required... most ingredients have a percentage limit for various reasons... fish meal and kelp is the most common due to fishy eggs.
To do a spreadsheet for someone I need a list of all ingredients they use - the list should be broken down into two parts... grains and premix. If it's something uncommon or not consistent I need the protein of that ingredient.
I love heart... yes it's better than liver for many reasons. I don't feed it to the chickens but I feed a lot of raw beef heart to my maremma - especially when nursing a litter. We have our own beef and sheep heart, but if we run out and have to purchase they are very inexpensive... $.75/ea for one 5-7 lb heart.
I really like the BSF for animal protein for layers (way to much calcium for chicks). However, I now only feed BSF in the winter since they free range all summer.
The problem I run into with heart and other meat is keeping the ration consistent... I can weigh the BSF and know how many lbs I need per day for the flock to keep my ration balanced. I have never attempted to balance in raw meat, but suppose it could be done. Everything I do I do by weight... if I don't and someone else has to feed on a given day, there is too much inconsistency with "a scoop of this and two scoops of that". I feed hundreds of head of livestock... I have to make what I do each day easy for someone else to duplicate in an emergency.
Hope that helps.