Kelp is a great alternative to traditional mineral blocks, is safe for animal and human consumption, a great natural garden fertilizer and helps prevent parasites in animals. Be sure to buy a food grade of kelp if you or your animals are going to consume it.
Kelp is made from seaweed. It contains a number of vitamins, minerals, trace elements, amino acids and alginates – in other words much more than traditional mineral blocks or fertilizers.
Here is a chart that will help you estimate how much to give to farm animals on a daily basis:
Cows – 1% to 2% of their total feed ration.
Poultry (except for turkeys) – 1% of their total feed ration.
Turkeys – 2% of their total feed ration.
Horses – ½ ounce today.
Sheep – 2% of their total feed ration.
Goats – Offer it free choice.
Pigs – Offer it free choice.