Answer:
There are two main reasons why pigs cannot be fed rough or coarse feed:
1. Digestive System: Pigs have a relatively simple and monogastric (single-chambered) digestive system similar to humans. Their digestive tract is not designed to efficiently break down and extract nutrients from rough or fibrous materials. Pigs lack a rumen, which is present in ruminant animals like cows and helps them digest roughage effectively. Pigs have a shorter digestive tract optimized for digesting easily digestible and concentrated feeds.
2. Nutrient Requirements: Pigs have specific nutrient requirements for optimal growth, reproduction, and overall health. Rough or coarse feeds typically have lower nutrient density and may lack the essential nutrients required by pigs. Pigs need a balanced diet that provides the right amounts of protein, carbohydrates, fats, vitamins, and minerals. Feeding them rough feed alone may not meet their nutritional needs, leading to deficiencies and health issues.
To ensure proper nutrition and optimal growth, pigs require feeds that are formulated specifically for their dietary needs, typically consisting of grains, protein sources, and essential supplements. These formulated feeds are processed and balanced to provide the necessary nutrients in a digestible form for pigs.