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Journal of the American College of Nutrition, Vol. 21, No. 6, 585 (2002)
Published by the American College of Nutrition

Correction:

J Am Coll Nutr 21(5):489 (2002), ACN Meeting Abstract 107 appeared incorrectly. The correct abstract is: MAGNESIUM IN THE MATERNAL DIET IMPROVES PERFORMANCE OF OFFSPRING. Buck, DR. State of Connecticut Department of Social Services, Hartford, CT 06106, USA. At an earlier meeting (ACN, 1987), J. Norman and I presented data showing that the offspring of lactating rat dams who were fed more magnesium (Mg) performed better on a swim maze at 20 days of age, I now present data showing the effects of four diets fed to the lactating dams on the shock avoidance learning of their offspring at 40 and 80 days of age. The four maternal diet groups were a low-Mg group fed diet containing 125 mg Mg/kg, a group fed 500 mg/kg pair fed to the low Mg group, an ad Libitum group fed 500 rog/kg, and a high-Mg group fed 900 mg/kg. Data were analyzed by splitplot analysis of variance on two pups per litter, with litters as the whole plot. At 40 days of age, mean trials to criterion on a shuttlebox task were 236, 244, 248 and 176 respectively for pups whose dams were fed the four diets (F3/23 =172, p<0.001). Percentages learning were 38, 54, 40 and 80, At 80 days of age, the number ot trials to criterion on the shuttlebox task were 115, 117, 111 and 108 (F3/23=0.36, NS). Percentages learning were 77, 92, 100 and 100. There were no sex differences. I conclude that slightly nore than the normally recommended amount of magnesium in the mammal diet may improve performance of the young. The magnitude of improvement diminishes with age when offspring are fed a normal diet.





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