Calculating Protein Percentages of Eggs and Peas

[Chris2018]

Here is a chart that has a lot of feedstuff on it including peas and beans.

www.daf.qld.gov.au/business-priorities/animal-industries/pigs/feed-nutrition/ingredients-contaminants/nutrient-composition

 

[Akrnaf2]

@EggSighted4Life, you're a great sport!

Question... so if you mix 100 grams of 20% poultry feed, 100 grams of frozen peas, and 100 grams of boiled egg, what is the percentage of protein of the 300 grams of stuff?
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It is easy
Let say that the %of protein is:
Feed 20%
Egg 18%
Peas 15%
In the first example
Take the % of each and make an average it is because you have taken 100 gr of each.
But if you take different amounts let say
100 grams of feed 50 grams of egg and 180 gr of peas then you should do this:
20%=0.2
100 gr of feed x 0.2= 20 gr of protein
18%=0.18
50 gr of egg x0.18=9 gr of protein
15%=0.15
180 gr of peas x0.15= 27 gr protein
Then
(Total whigt of protein in grams/ total whigt )x100= the % of protein in the mix
(20+9+27/100+50+180=56/330=0.169
0.169x100=16.9% protein in the mix.

 

[R2elk]

I started this thread so people could discuss their methods on calculating percentages of things like peas and eggs.

https://www.healthline.com/nutrition/protein-in-egg

 

[Percheron chick]

Ask and you shall receive.
Raw egg (no shell)
52.1 percent protein
41.1 percent fat
5919 caloric energy (kcal/kg)

Looking at these numbers and seeing the high amount of kcal I would say it would make a better treat rather than a feedstuff. High amount of kcal meens your bird eats less feed and unless you copusate for that your going to experience nutritional deficiencies.

View attachment 1424131

. You are comparing apples to oranges. % and grams of protein aren't the same thing. An egg is mostly water. Remove the water (all feed values are on a dry basis) and what you are left with is protein, fat, carbohydrates and ash (residue from minerals and vitamins once the first 3 have been burnt off). Now I'm rounding up for simplicity. An average large egg weighs 56g. It's 75% water (moisture) .That leaves us with 14g stuff. If the protein % of eggs is 50% then an egg has 7g of protein. 50% protein sounds impressive but we aren't feeding dry egg powder. It still only has 7g.

 

[Kiki]

I use this site:
https://www.supertracker.usda.gov/foodtracker.aspx

 

[Kiki]

It is easy
Let say that the %of protein is:
Feed 20%
Egg 18%
Peas 15%
In the first example
Take the % of each and make an average it is because you have taken 100 gr of each.
But if you take different amounts let say
100 grams of feed 50 grams of egg and 180 gr of peas then you should do this:
20%=0.2
100 gr of feed x 0.2= 20 gr of protein
18%=0.18
50 gr of egg x0.18=9 gr of protein
15%=0.15
180 gr of peas x0.15= 27 gr protein
Then
(Total whigt of protein in grams/ total whigt )x100= the % of protein in the mix
(20+9+27/100+50+180=56/330=0.169
0.169x100=16.9% protein in the mix.

Where does the number 330 in the above problem come from?
That is the only number that is throwing me off.

Is it alway 330?

 

[Percheron chick]

330 is the total of the 3 ingredients.

 

[casportpony]

. You are comparing apples to oranges. % and grams of protein aren't the same thing. An egg is mostly water. Remove the water (all feed values are on a dry basis) and what you are left with is protein, fat, carbohydrates and ash (residue from minerals and vitamins once the first 3 have been burnt off). Now I'm rounding up for simplicity. An average large egg weighs 56g. It's 75% water (moisture) .That leaves us with 14g stuff. If the protein % of eggs is 50% then an egg has 7g of protein. 50% protein sounds impressive but we aren't feeding dry egg powder. It still only has 7g.

That makes sense.

 

[EggSighted4Life]

I use this site:
https://www.supertracker.usda.gov/foodtracker.aspx

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But the daily value percent is based on it's value inside a specified caloric content NOT the amount that is in the product.

 

[casportpony]

https://www.healthline.com/nutrition/protein-in-egg

Good link!
So that says eggs are 13% protein.