Some folks do believe that fodder is a complete diet, I do not...at least not for chickens.yeah i can see that they would choose those first, however i am hearing that some people believe that fodder is a complete diet and thats what im really wondering. what else do they really NEED and how true is it that they can thrive on fodder alone? thanks!
Would they survive on it? Probably, but I seriously doubt they would thrive on it.
Also, 'fodder' is a rather loose term (tossed about as a 'miracle' for a plethora of reasons) and a lot can depend on what grains you are growing with what technique that determine the nutritional value(s) of the 'fodder'.
There are vitamins, minerals, amino acids and other components in formulated chicken feed that are essential to thriving health.
Even free ranged or wild chickens in a temperate climate will eat things other than grasses and their seeds.
What do they 'NEED'? Look at the ingredients and nutrient list on any decent bag of chicken feed and you'll get a pretty good idea.
Better yet, compare a half dozen different bags of feed targeting different growth and production stages and look at what's different and what's the same.
Nothing is written in stone, nor does 'one size fit all' and everything should be taken in with a grain of salt and a full cup of common sense....for example:
-some feeds have a higher calcium content than other because non laying chicken don't need as much.
-some feeds have a higher protein content because growing and molting birds need more than others.