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Metabolic effects of a low-magnesium diet in pigs

Published online by Cambridge University Press:  09 March 2007

P. J. Nuoranne ,
R. P. Raunio ,
P. Saukko  and
H. Karppanen
P. J. Nuoranne
Affiliation:
Department of Animal Hygiene, Veterinary College, 00550 Helsinki 55, Finland
R. P. Raunio
Affiliation:
Department of Biochemistry, University of Turku, 20500 Turku 50, Finland
P. Saukko
Affiliation:
Department of Forensic Medicine, University of Oulu, 90220 Oulu 22, Finland
H. Karppanen
Affiliation:
Department of Pharmacology, University of Helsinki, 00170 Helsinki 17, Finland
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Abstract

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1. Pigs were fed on semi-purified food. The magnesium content of the experimental diet was 1·0 and that of the control diet 1·9 g/kg.

2. In the low-Mg group serum triglycerides and blood lactate values were increased and base excess and standard bicarbonate values were decreased, indicating metabolic acidosis.

3. A significant positive dependence was found between blood pH and serum Mg:Ca value as well as between blood pH and serum Mg, and also between body temperature and blood lactate values in the low-Mg group. None of these dependences was significant in the control group with magnesium acetate supplementation in the food.

4. No specific histopathological changes were found in heart, liver or kidney of the experimental animals.

5. The results indicate that an increase in serum triglycerides does not need to depend on the amount or quality of food fat.

6. The present study shows that, in pigs, a low-Mg diet may cause metabolic disturbances in instances when the food Mg content is distinctly higher than the normal values recommended by the (UK) Agricultural Research Council (1966) and (US) National Research Council (1968).

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 44 , Issue 1 , July 1980 , pp. 53 - 60
Copyright
Copyright © The Nutrition Society 1980

References

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