Vitamin A is a fat-soluble vitamin essential for various biological processes, including vision, immune function, and cell growth and differentiation, and is necessary for maintaining the health of the skin and mucous membranes – which act as barriers against harmful pathogens.

The recommended amount of vitamin A to feed will vary between individuals, but in general, pigs require around 5,000 to 20,000 International Units (IU) of vitamin A per kilogram of feed daily.

The maximum safe level of vitamin A for pigs is not well established, but excessive amounts can be toxic, so the NRC recommends an upper limit of no more than 40,000 IU per kilogram of feed, and less for pregnant and lactating sows (20,000 to 30,000 IU per kilogram of feed).

Some sources include:

– Sweet Potatoes
– Carrots
– Spinach
– Kale
– Butternut Squash
– Broccoli
– Pumpkin
– Cod Liver Oil: One tablespoon of cod liver oil contains about 14,000 IU of vitamin A.

For the love of pigs!