Key vitamins and minerals every pig feed program should include.

Key vitamins and minerals every pig feed program should include.

Every pig feed program should include a properly formulated vitamin–mineral premix, adjusted for the pig’s age, weight, health status, and production stage. The core nutrients are:

Essential vitamins

• Vitamin A: Vision, immunity, growth, reproduction, and healthy skin.
• Vitamin D₃: Calcium and phosphorus absorption, bone development, and prevention of rickets.
• Vitamin E: Antioxidant protection, immunity, muscle health, and reproductive performance.
• Vitamin K: Normal blood clotting and bone metabolism.
• B-complex vitamins: Support energy metabolism, appetite, nerve function, growth, and blood formation. Commonly supplemented B vitamins include thiamine, riboflavin, pyridoxine, niacin, pantothenic acid, biotin, folate, and vitamin B₁₂.
• Choline: Important for liver function, fat metabolism, growth, and sow reproduction.

These are among the vitamins most commonly added to swine rations because grains and plant-based ingredients may not reliably supply enough of them.

Essential minerals

Major minerals

• Calcium: Bone and teeth formation, muscle contraction, and eggshell-like structural strength in the skeleton.
• Available phosphorus: Bone development, energy metabolism, and cell function.
• Sodium and chloride: Fluid balance, nerve function, muscle activity, and feed intake; commonly supplied through salt.
• Magnesium and potassium: Muscle, nerve, and metabolic functions, although normal grain-based diets often provide substantial amounts.

Calcium, phosphorus, sodium, and chlorine are the major minerals that usually require the closest attention when formulating pig diets.

Trace minerals

• Iron: Hemoglobin production and prevention of anemia, especially important in young piglets.
• Zinc: Growth, skin and hoof integrity, immunity, and wound repair.
• Copper: Blood formation, connective tissue, immunity, and enzyme activity.
• Manganese: Bone development, reproduction, and cartilage formation.
• Iodine: Thyroid hormones, metabolism, growth, and reproduction.
• Selenium: Antioxidant defense, immunity, muscle integrity, and reproductive health.
• Cobalt: Supports vitamin B₁₂-related metabolism.
• Chromium: Sometimes included for metabolic or stress-related support, but its use is more situation-specific.

The main trace minerals requiring attention in swine diets are iron, zinc, iodine, selenium, copper, and manganese.

Practical feeding guidance

Use a commercial premix designed specifically for the relevant stage:

• Piglets and nursery pigs: Emphasize iron, zinc, vitamin A, vitamin D, vitamin E, and B vitamins.
• Grower–finisher pigs: Maintain balanced calcium, available phosphorus, salt, trace minerals, and vitamins for efficient growth and bone strength.
• Gestating and lactating sows: Pay particular attention to vitamins A, D, and E, calcium, phosphorus, selenium, zinc, iodine, and choline for reproduction, milk production, and litter health.
• Breeding boars: Maintain adequate vitamins A and E, selenium, zinc, manganese, and other reproductive-support nutrients.

Do not increase mineral or vitamin levels blindly: both deficiencies and excesses can reduce performance, create toxicity risks, or interfere with the absorption of other nutrients. Final inclusion rates should follow the premix label and a swine nutritionist’s formulation based on local feed ingredients, water quality, and production stage.