Developmental changes in serum ferritin of piglets.

Area of Science:

• Veterinary Medicine
• Animal Nutrition
• Biochemistry

Background:

• Neonatal piglets are prone to iron deficiency anemia due to low initial iron stores and limited dietary intake.
• Serum ferritin levels are critical indicators of iron status in animals.
• Assessing iron metabolism in piglets is crucial for optimizing growth and health.

Purpose of the Study:

• To investigate the relationship between serum ferritin and iron status in nursing piglets.
• To evaluate the efficacy of iron-dextran injection in preventing iron deficiency.
• To understand the dynamics of serum ferritin concentration post-iron supplementation.

Main Methods:

• Serum ferritin was measured using a two-site immuno-radiometric assay in 40 nursing piglets.
• Iron status was assessed by measuring hemoglobin concentration and liver nonheme iron.
• Piglets received either iron-dextran injection or no supplementation.

Main Results:

• Iron-dextran injection effectively restored hemoglobin levels, preventing iron deficiency anemia.
• Serum ferritin levels were low at birth, increased initially, then declined sharply in both supplemented and unsupplemented groups by 3-4 weeks.
• Despite adequate iron for hemoglobin, serum ferritin was nearly depleted by 2-4 weeks, indicating limited iron storage.
• Serum ferritin levels rose after 4 weeks, paralleling hemoglobin in unsupplemented piglets.

Conclusions:

• Iron-dextran injection is crucial for maintaining hemoglobin in nursing piglets.
• Serum ferritin levels become depleted by 3-4 weeks of age, even with adequate iron supplementation.
• Monitoring serum ferritin is essential for a comprehensive assessment of iron status beyond hemoglobin levels in piglets.