new research debunks trad views on nutrition

[Perris]

I can’t. I don’t want to know!

But it might surprise you. Most of the time action needs to be taken is because of *aesthetic* rather than health reasons. Oddly enough, people don't like to find hair or poop or insects in their food

 

[U_Stormcrow]

There are good threads on BYC with that info. I think @U_Stormcrow is the guy who has done the most to codify that kind of thing for chicken feed.
Similar principles apply to people feed.

Methionine and Lysine appear on guaranteed feed labels here in the US.

The next two limiting AAs to be concerned with are Threonine and Tryptophan. They are NOT required to appear on guaranteed feed labels here in the US. You might wonder why?

I can't answer with certainty, I wasn't in the room. But having tinkered around with feed calculators "a bit", I'll offer that if you make the typical corn/soy based feed so very popular here in the US< it is almost impossible to "miss" on Thre or Tryp if the get Met and Lys right, as a consequence of the ratios in which those AAs are found relative to Met and Lys in those two ingredients. There are similar [not identical, but similar] ratios in the more common substitutes for soy [lentils, peas, legumes generally, sunflower seeds, sesame seeds] and corn, so by the time you get Met and Lys where you want it, again, you've probably hit your Tryp and Thre numbers.

About the only time I don't see those numbers hit, its a "home brew" recipe, and it usually misses at least the Met number as well, so...

I don't sweat their absence from the tag.

 

[U_Stormcrow]

I listen to the poultry keepers podcast sometimes and whenever they talk about nutrition… they almost always say it’s not about protein % it’s about the amino acids. I haven’t heard them go into detail about where to source the important aminos. Methionine is one, but I can’t remember the others that are fundamentally important.
Edit: Lysine is the other important amino acid they look for in feeds

Good afternoon Texas. Its a popular topic around here, for those that get past brand name and the marketing descriptor, want to make apples to apples comparisons of feed labels.

and depending on where you are in TX, you might want to check out @West Feeds . Reasonably priced, generally very good numbers on those guaranteed nutrition labels. Don't know what you are feeding now, but if you've given thought to making a change, you should look into their options. (I spent 11 years outside the Austin area, so I'm more familiar with the local brands in that area of the country than almost anywhere else, apart from Northwest Florida).

 

[TexasBlues]

I use the Texas Natural brand chick starter crumbles and Layer Pellets.

 

[U_Stormcrow]

^ also good numbers.

That said, this isn't the thread for discussion of available local mill feeds that check off various nutritional boxes. I apologize for my part in this detour.