new research debunks trad views on nutrition

[Shadrach]

There is also the complication that:

a) Not all protein is "the same", and there are a handful of studies showing that chickens, at least, can have difficulty in optimizing their critical amino acid intakes in the presence of a cafe of moderate to high calorie foods

and

b) studies have shown, again and again, that critters (us, chickens, others) ability to self regulate intake gets "wonky" once our daily caloric needs are met. With that understanding, seeking micronutrients in foods of low caloric density makes very good sense since it allows the eater to address both needs while staying near their desired caloric target.

So eat your veggies first???

[Edit: and I've not watched the YouTube video, but the simple fact that its posted on Youtube makes me doubt its veracity]

What the studies I've read suggest is it's the amino acid profile rather than the crude protein content that's important. Yet again, it is quite complicated but the studies found that if the amino acid profile was maintained at differing crude protein levels egg production and hens weight were not adversely affected by lower crude protein content.

 

[U_Stormcrow]

What the studies I've read suggest is it's the amino acid profile rather than the crude protein content that's important. Yet again, it is quite complicated but the studies found that if the amino acid profile was maintained at differing crude protein levels egg production and hens weight were not adversely affected by lower crude protein content.

I'll dig it up. The early cafeteria studies support your claim - I've repeated it myself and linked those studies approvingly. There are a few more recent studies that found less than optimal AA intake where the "cafeteria" provided high energy options holding key aminos.

I read it as a caution to not put all one's nutritional eggs into a single ingredient basket

 

[Altairsky]

This is so wrong on so many levels I don't know where to start.

The guy posted actual scientific studies in the video description, proving his points.
Now the fun thing about scientific studies is that they prove everything and the opposite of everything, depending on the flavour of the month and who's spending the money.
Everyone is perfectly allowed to believe in one or the other. I believe in the studies that confirms my own experience and what makes my flock healthier.
I fed my flock a 15% protein layer feed and after 3 months my chickens almost end up sick from it. That's enough for me, no matter how many studies funded by the feed industry prove that 12% protein is enough and layer feed is all your chickens need to have long healthy lives.