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What is the primary function of the gizzard in poultry's digestive system?

  1. Collects eggs

  2. Stores food

  3. Grinds food

  4. Absorbs nutrients

The correct answer is: Grinds food

The gizzard plays a crucial role in the digestive process of poultry by grinding food. This muscular organ is particularly important because birds often ingest whole grains and seeds, which need to be broken down into smaller, more digestible pieces. The gizzard contains strong muscles and may also contain grit, small particles of stone, or sand, which help in mechanically breaking down the food as it moves through the digestive tract. This grinding action is essential for efficiency in digestion and nutrient absorption, as it prepares the food for further processing in the intestines. Through this function, the gizzard ensures that poultry can effectively utilize their food intake to meet their nutritional needs.