Plain Salt Block - IodisedThis item is only available for local delivery and collection not available for postage. Olssons Plain Salt with Iodine block is a critical part of a nutritionally balanced diet for all livestock. Animals will crave salt at different times, salt which cannot be obtained in the available diet. Salt is an essential part of balancing the sodium level required by the animal at any given time. Salt blocks can be fed ad lib at all times of the year. Feeding