I've been following this post for awhile, but I have a question about the data. Why do they recommend a 42:18 blend of protein and fat, when that blend of feed wasn't even used in the experiment? In the Materials and Methods section, they claim to use 42:16. I know the difference is minor, but it also would seem to be a minor difference between a 40% protein diet and a 42%, but look at the data. There is a fairly large difference in the growth rates between the two. Maybe I missed something. Too bad they don't include information like water temperature, pH, and other more detailed info.

Chris