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Preventing Iron-Deficiency Anemia in Baby Pigs¹

North Carolina Agricultural Experiment Station, Raleigh³

Abstract

The use of iron-dextran or iron-dextrin when administered to nursing pigs at 3 days of age resulted in a marked increase in hemoglobin level at 14 and 28 days of age when compared to control pigs receiving no iron. Increased growth rate also occurred as a result of the injected dextran or dextrin compounds. Injection of ferric ammonium citrate + vitamin B₁₂ was much less effective in increasing hemoglobin level or growth rate of the pigs.

A single injection of 150 mg. of iron-dextran used in experiment 2 promptly overcame iron-deficiency anemia in baby pigs treated on the 7th, 14th or even on the 21st post-natal day. Delayed injection did not cause an interference of hemoglobin regeneration. At the completion of the experiment, at 8 weeks of age, the pigs that received the delayed treatment were comparable with respect to hemoglobin level, hematocrit level and weight to those treated when one week of age.

The average weight per pig at 56 days was 43 lb. It is quite apparent that the increases in weight were not influenced by the difference in age when the supplemental iron was administered.

¹ The authors wish to express appreciation to Armour Pharmaceutical Company, Kankakee, Illinois; American Cyanamid Company, Princeton, New Jersey; and The Squibb Institute, New Brunswick, New Jersey for supplying materials.

² Professor Emeritus, Veterinary Science Department, University of Minnesota, St. Paul, Minnesota.

³ Contribution from the Animal Husbandry Section, A. I. Department, North Carolina Agricultural Experiment Station, Raleigh, North Carolina. Published with the approval of the Director of Research as Paper No. 1380 of the Journal Series.

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