خلاصة:
The aim of the present research was to investigate the effect of two types of diets (zinc deficiency diet and iron deficiency diet) on the physical growth, memory, learning, and motor activity of young rats. The statistical population of this study consisted of female rats (Albino-Wistar strain) from the Pasteur Institute of Iran. During 28 days (the last third of pregnancy and the lactation period), the mother rats received standard diets, zinc deficiency (>Zn> 0.5 ppm), and iron deficiency (>Fe> 2 ppm). After birth, male offspring of each group were assessed for certain anthropometric indices (height and weight), brain growth, serum zinc and iron concentrations, and memory or learning at three stages: newborn (1 day old), end of weaning (21 days old), and beginning of youth (70 days old). Finally, the motor activity of the rats was measured using the Morris water maze and the Open-field device. Data analysis through one-way ANOVA and Tukey's post-hoc test at a significance level of p < 0.05 showed that in addition to the important role of zinc and iron elements in optimal physical, brain, memory, and learning growth, these two elements are also effective in the optimal motor performance of young rats. In general, the research results indicate that the element zinc has greater importance than iron in optimal physical, brain, memory, learning, and motor activity growth.
ملخص الجهاز:
Assistant Professor, Pasteur Institute of Iran Date received: 10/4/87 Date accepted: 6/6/87 Abstract The aim of the present study was to investigate the effect of two types of diets (zinc deficiency diet and iron deficiency diet) on physical growth, memory, learning and motor activity of young rats.
In general, the results of the research indicate that the zinc element has greater importance than iron in desirable physical, brain, memory, learning and motor activity growth.
Research Methodology The present research is of an experimental type in which the effect of applying diets deficient in zinc and iron elements on the physical growth, memory, learning, and motor activity of young mice has been investigated.
Post-hoc test to determine the difference between the means of anthropometric indices and brain growth of young mice (70 days old) (Refer to the page image) C) Analysis of Morris Water Maze results Results related to the acquisition test: The results obtained from the total attempts in the acquisition phase show that the mean escape latency1 and the mean traveled distance2 to reach the target platform (F 33.
Additionally, the test results show that in the zinc and iron deficiency groups, the percentage of quadrant entrance3 showed a non-significant decrease compared to the control group (Figure 1.
The findings of the present research, consistent with some other studies, show a significant decrease in physical and brain growth indices of the zinc deficiency and iron deficiency groups compared to the control group (55, 41).
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