Protein content in feed

[RoyalChick]

Since I posted that question this morning, I spoke with a feed farm. I was told it was by volume, i.e., a 50 lb bag has 16% protein and 3 lbs of that feed also has 16% protein.
If it is by weight, the 50 lb bag of feed has 16% protein, and 3 lbs of that feed had .48% protein. We just want to better understand the needs of our chickens and what we are feeding them.

As others have said it is percent by weight.
So in a 50lb bag of feed that is 16% protein there will be 8lb of protein (8lb is 16% of 50lb).
If you take that same feed, 3lbs of the feed will have 0.48lb of protein (0.48lb is 16% of 3lb).

It doesn't matter how much of the bag you look at, it will always be 16% protein.

You cannot really even figure out what volume is because the volume changes as the feed settles. A 50lb bag however always weighs 50lb.
Hope that helps, and as others have said, 16% protein is like a minimum acceptable level for chickens - many of us feed much higher levels of protein to keep our hens happy and healthy. I try and give 20% feed but I can't always get it so sometimes they get 18%.

 

[U_Stormcrow]

Sorry, I missed this earlier. In the 2nd post I made earlier I wrote "If it is by weight, the 50 lb bag of feed has 16% protein, and 3 lbs of that feed had .48% protein." That is what you are saying, correct?
Thanks!

NO.

That's not how math works.

A 50# bag of feed at 16% protein (by weight - the way chicken feed is measured) contains 8# of protein. a 3# bag of the same feed contains 0.48# of protein. In both cases, 16% of the total weight is protein.

/edit sorry, I should have read to the end of the thread, didn't mean to pile on.

 

[SourRoses]

Math is hard. Don't do math.

 

[Spencer5]

You guys have been quite helpful and I appreciate it. Thank you

 

[ANELAQ808]

What are your input/opinion about T& T Gamebird Feed Premium Supreme?

 

[U_Stormcrow]

What are your input/opinion about T& T Gamebird Feed Premium Supreme?

I don't know almost anything about what "game birds" that is supposed to feed, but I certainly wouldn't feed it to my chickens or ducks. Crude protein is low, and the balance of amino acids is way off - that's about 1/3 the Methionine chickens need as a recommended minimum. Lys is about half where it should be as a minimum. Calcium is very low as well - which I don't care about since I offer oyster shell for the birds to self-regulate their own intake.

But 0.5 - 0.6% isn't enough to meet basic metabolic needs for chickens at any age or gender, much less support shell production.

That feed is neither "premium" nor "supreme" - at least as chickens and ducks would account such things. Any chance that feed is intended as half of a 2 part feed regimen, the other (more expensive) half having a far superior nutritional assay?