What is the most common nutrient deficiency found in piglets?

The most prevalent nutrient deficiency observed in piglets is iron deficiency. This condition arises largely because piglets are often born with low iron reserves and their natural diet, primarily consisting of milk, typically lacks sufficient iron to meet their growing needs. Their rapid growth rate and the fact that they are often raised in environments with limited access to iron sources, such as pasture, further contribute to this issue.

In commercial farming practices, iron deficiency can lead to anemia, which negatively impacts the health and productivity of piglets. To mitigate this risk, it is common for piglets to receive iron supplementation shortly after birth, usually through injections or by incorporating iron-rich supplements into their feed. This supplementation is crucial for preventing anemia and ensuring optimal growth and development in piglets.

The other nutrient deficiencies listed, such as vitamin D, vitamin A, and calcium, are indeed important for overall health but are not as commonly seen as deficiencies in iron in piglets under typical rearing conditions.