I just ran that recipie through my feed ration maker program and it is only comming out at 14.2% and that is not near enough to get and keep hens laying.
I would caution those of you that are useing fish meal as a protien souce. Fish meals are a concentrate of fishery leftovers - they are also very high in heavy metals, mercury,bcps and lead. Fish meal toxins when fed to animals is bioaccumulated in the fats - and in the eggs they lay. From a safety stand point I would take soy over fish. The oestrogens in the soy are not passed on through the eggs or meat and if it is organic soy - then there is no GMO.
As far as the fish meal is concerned, I can see where that would be a problem. However, if it's coming from free-range salmon, like in PaulaJoAnne's case, that is generally a very low-mercury count fish. I don't know what will be available to me here in California, but I'll definitely be thinking about the mercury count when I'm looking.