Here's the full quote, which is 100% accurate.
Not all protein is created equally. I could grind up my leather work boots, place them in a bag, and slap a label on that bag that stated a crude protein percentage.
In fish feed, like most animal feeds, it is the amino acid content that determines the quality of that protein. It doesn't matter what the crude protein value is, if the essential amino acids required by a fish are not present in that protein percentage. This is simple fish nutrition 101.
in your Probiotic sticky you dont even define Probiotic correctly.
LMAO, if that's the best you got amigo next time you might want to bring some friends, and pack a lunch.
As I stated in that sticky on probiotics, Probiotics are
usually defined as live microbial feed supplements which beneficially affect the host animal by improving its intestinal microbial balance. And I quoted the source of that statement. (Fuller, 1989)
The definition has evolved over time, and once again, unlike human medicine, and the science regarding humans, things are not always viewed in the exact same manner within aquaculture circles. The science in that area is constantly evolving, and as already explained fish aren't humans, and even within finfish the feeding mechanisms & digestion of those feeds can vary greatly.
But hey, big shout out for understanding that amino acids are the building blocks of protein. Nice pic too!
Like I said, I don't even know why I bother..........