What is the primary source of energy for swine?

The primary source of energy for swine is carbohydrates. Carbohydrates are essential in a pig's diet because they provide a readily available source of energy that supports growth, maintenance, and overall health. The digestive system of swine is well-equipped to break down carbohydrates into simpler sugars, which can then be utilized for energy. This energy is crucial for all bodily functions, including muscle development, nutrient metabolism, and even reproduction.

While fats and proteins also contribute to energy intake, they do so in different ways: fats provide a concentrated source of energy and proteins are primarily involved in structure and function, such as muscle building and repair. Vitamins, on the other hand, play a vital role in metabolic processes but do not serve as direct energy sources. Therefore, carbohydrates are recognized as the main energy source, making them a fundamental component of a balanced diet for pigs. This understanding helps in formulating diets that meet the energy requirements of swine for optimal growth and productivity.