Question:
Which of the following feed ingredients can be classified as protein feed ingredient?
Which of the following feed ingredients can be classified as protein feed ingredient?
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Protein supplements are divided into plant-origin (e.g., soybean meal, mustard cake, cotton seed cake) and animal-origin (e.g., fish meal, meat meal), with soybean meal being the global standard.
Updated On: Aug 5, 2026
- Maize grains
- Wheat bran
- Soybean meal
- Sorghum grains
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Animal feed ingredients are classified based on their nutritional profile, particularly their fiber, protein, and energy content.
According to standard feed classification systems, a feed ingredient is classified as a "protein supplement" if it contains more than \(20\%\) crude protein (CP) on a dry matter basis.
Step 2: Detailed Explanation:
Let us analyze the crude protein (CP) content and classification of the listed ingredients:
Maize grains: An energy feed containing approximately \(8\%\) to \(9\%\) crude protein. It is used as a primary carbohydrate source.
Sorghum grains: An energy feed containing approximately \(9\%\) to \(11\%\) crude protein, also classified as a basal/energy feed.
Wheat bran: A processing by-product containing moderate protein (around \(14\%\) to \(16\%\) CP) and high fiber. It is classified as a medium-grade feed, not a primary protein supplement.
Soybean meal: A oilseed extraction by-product containing approximately \(44\%\) to \(48\%\) crude protein on a dry matter basis.
Because its protein content is well above the \(20\%\) threshold, and it has an excellent amino acid balance, it is classified as a high-quality protein feed ingredient.
Step 3: Final Answer:
Soybean meal is classified as a protein feed ingredient.
Animal feed ingredients are classified based on their nutritional profile, particularly their fiber, protein, and energy content.
According to standard feed classification systems, a feed ingredient is classified as a "protein supplement" if it contains more than \(20\%\) crude protein (CP) on a dry matter basis.
Step 2: Detailed Explanation:
Let us analyze the crude protein (CP) content and classification of the listed ingredients:
Maize grains: An energy feed containing approximately \(8\%\) to \(9\%\) crude protein. It is used as a primary carbohydrate source.
Sorghum grains: An energy feed containing approximately \(9\%\) to \(11\%\) crude protein, also classified as a basal/energy feed.
Wheat bran: A processing by-product containing moderate protein (around \(14\%\) to \(16\%\) CP) and high fiber. It is classified as a medium-grade feed, not a primary protein supplement.
Soybean meal: A oilseed extraction by-product containing approximately \(44\%\) to \(48\%\) crude protein on a dry matter basis.
Because its protein content is well above the \(20\%\) threshold, and it has an excellent amino acid balance, it is classified as a high-quality protein feed ingredient.
Step 3: Final Answer:
Soybean meal is classified as a protein feed ingredient.
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