Constipation of sows during late gestation or within a few days of farrowing is commonly encountered. Although a slight dehydration is normal for sows giving birth, sows may temporarily show signs of constipation. This condition is generally of a short duration. In many cases, constipated sows had not received adequate water. Sows that are group housed during gestation generally have fewer constipation problems than sows housed in individual stalls because they have been more physically active. Laxatives can improve sow bowel movements and subsequent lactation feed intake.
Both mineral laxatives and/or the addition of fiber to sow diets are methods that have been used to control constipation in adult sows. The addition of either minerals or fibrous feedstuffs during gestation will generally result in satisfactory results.