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Prevention of coprophagy modifies magnesium absorption in rats fed with fructo-oligosaccharides

Published online by Cambridge University Press:  09 March 2007

Atsutane Ohta ,
Seigo Baba ,
Masako Ohtsuki ,
Adusa Taguchi ,
Takashi Adachi  and
Hiroshi Hara
Atsutane Ohta
Affiliation:
Department of Nutritional Science Centre, Bioscience Laboratories, Meiji Seika Kaisha Ltd, Saitama 350-02, Japan
Seigo Baba
Affiliation:
Department of Nutritional Science Centre, Bioscience Laboratories, Meiji Seika Kaisha Ltd, Saitama 350-02, Japan
Masako Ohtsuki
Affiliation:
Department of Nutritional Science Centre, Bioscience Laboratories, Meiji Seika Kaisha Ltd, Saitama 350-02, Japan
Adusa Taguchi
Affiliation:
Department of Nutritional Science Centre, Bioscience Laboratories, Meiji Seika Kaisha Ltd, Saitama 350-02, Japan
Takashi Adachi
Affiliation:
Department of Nutritional Science Centre, Bioscience Laboratories, Meiji Seika Kaisha Ltd, Saitama 350-02, Japan
Hiroshi Hara
Affiliation:
Department of Bioscience and Chemistry, Faculty of Agriculture, Hokkaido University, Sapporo 060, Japan
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Abstracts

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We developed a new type of anal cup for prevention of coprophagy and determined whether the absorption of Ca and Mg and the stimulatory effects of feeding fructo-oligosaccharides (FO) on theabsorption of Ca and Mg were altered by prevention of coprophagy in rats. Rats were fed on a FO-free diet or a diet containing 50 g FO/kg for 2 weeks with or without prevention of coprophagy. FO-feeding increased the apparent absorptive ratio of Ca and Mg in rats with or without prevention of coprophagy. However, in the FO-fed groups the absorptive ratio of Mg in rats with prevention of coprophagy was higher than in rats withont prevention of coprophagy. The Ca content of the femur was higher in rats fed on the FO-diet than in rats fed on the FO-free diet both with and without coprophagy. In conclusion, FO-feeding increased the absorption of Ca and Mg in rats both with and without coprophagy. Moreover, prevention of coprophagy enhanced the absorption of Mg in rats fed with FO. Coprophagy has to be considered when the effects of luminal fermentation or mineral absorption are examined in rats

Keywords

CoprophagyFructo-oligosaccharidesCalciumMagnesium
Type
Coprophagy and mineral absorption in rats
Information
British Journal of Nutrition , Volume 75 , Issue 5 , May 1996 , pp. 775 - 784
Copyright
Copyright © The Nutrition Society 1996

References

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