Based on the nutrients present in the feed, classify feedstuffs into different types and give two examples for each type of feedstuff along with their crude protein and energy contents.

Feedstuffs can be classified into several types based on their nutrient composition and nutritional value. Some common types of feedstuffs include:

1. Energy Feedstuffs: Energy feedstuffs are high in carbohydrates and fats, providing energy for growth, maintenance, and production in poultry. Examples include:

   • Corn (Maize): Crude protein content varies but typically ranges from 7-10%, with energy content around 3500-3800 kcal/kg.
   • Wheat: Crude protein content varies but typically ranges from 10-15%, with energy content around 3200-3400 kcal/kg.

2. Protein Feedstuffs: Protein feedstuffs are rich in amino acids and protein, essential for muscle development, egg production, and overall growth in poultry. Examples include:

   • Soybean Meal: Crude protein content typically ranges from 44-50%, with energy content around 2700-2900 kcal/kg.
   • Fish Meal: Crude protein content typically ranges from 60-70%, with energy content around 3000-3200 kcal/kg.

3. Roughage Feedstuffs: Roughage feedstuffs are high in fiber and provide bulk to the diet, aiding in digestion and gut health in poultry. Examples include:

   • Alfalfa Hay: Crude protein content typically ranges from 15-20%, with energy content around 2000-2400 kcal/kg.
   • Oat Hay: Crude protein content typically ranges from 8-12%, with energy content around 1800-2200 kcal/kg.

4. Mineral and Vitamin Supplements: These feedstuffs provide essential minerals and vitamins required for various physiological functions and metabolic processes in poultry. Examples include:

   • Limestone: Provides calcium for bone development and eggshell formation.
   • Vitamin Premix: Contains a balanced blend of vitamins (A, D, E, K, B complex) essential for overall health and immunity.

5. By-Products and Supplements: By-products from food and agro-industries can also be used as feedstuffs, providing additional nutrients and dietary diversity. Examples include:

   • Distillers Dried Grains with Solubles (DDGS): By-product of ethanol production, high in protein and energy.
   • Rice Bran: By-product of rice milling, rich in fat and fiber, with moderate protein content.

By incorporating a variety of feedstuffs from different types into poultry diets, producers can formulate balanced and nutritious rations that meet the specific nutritional requirements of their birds at different life stages and production phases.