实验动物科学 ›› 2021, Vol. 38 ›› Issue (1): 17-.

• 研究报告 • 上一篇    下一篇

孕期营养补充剂对妊娠母鼠和仔鼠行为学影响


  

  1. ( 1. 国家卫生健康委科学技术研究所,北京 100081) ( 2. 北京市朝阳区太阳宫社区卫生服务中心,北京 100028)
  • 出版日期:2021-02-28 发布日期:2021-04-14

Effect of Nutritional Supplements during Pregnancy on Spontaneous Motor Activity and Explorative Behavior of Mother and Filial Mice

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  1. ( 1. National Research Institute for Family Planning, Beijing 100081, China)
    ( 2
    . Beijing Sun Palace Community Health Service Center, Beijing 100028, China)

  • Online:2021-02-28 Published:2021-04-14

摘要: 摘要:目的 观察孕期添加多种维生素和矿物质营养补充剂对母鼠和仔鼠自主活动与探究行为的影响,以及对仔鼠发育的影响。 方法 SPF 级昆明小鼠交配见栓后随机分为低剂量组中剂量组高剂量组和溶剂对照组,孕期添加营养补充剂(孕早期孕中期孕晚期 个阶段的产品)按人体推荐日摄入量 2 g / d 换算小鼠的等效剂量,以等效剂量的 0. 5 、1 、2 倍作为低高 个剂量组的药物剂量,分别为 150 mg / ( kg· d) 、300 mg / ( kg· d) 、600 mg /( kg· d) ,连续灌胃 6 d,休息 1 d 后使用下一阶段产品,直至生产;观察仔鼠出生体质量离乳体质量和离乳一周体质量;同时对离乳后一周母鼠及仔鼠进行旷场实验,观察其行为学差异。 结果 仔鼠出生体质量 个剂量组较溶剂对照组均增加,其中高剂量组与溶剂对照组比较差异有统计学意义P< 0. 05) 。 离乳当天仔鼠体质量较溶剂对照组显著增加P<0. 05 ~ 0. 01) 。 离乳后一周仔鼠体质量 个剂量组较溶剂对照组显著增加P< 0. 01) 。 产后母鼠在水平运动和垂直运动两项分析指标无明显变化P> 0. 05) ,在中央区停留时间及穿越中央区次数两项分析指标有增加的趋势。 离乳后一周雌性仔鼠水平运动和垂直运动指标无明显差异P> 0. 05) ,但水平运动指标显示在中剂量和高剂量组分别增加 5. 16%和 14. 79% ;在中剂量和高剂量组中央区停留时间分别增加 4. 59% 和 72. 95% ,高剂量组明显增加P<0. 01) ;穿越中央区次数分别增加 8. 58%和 56. 89% ,高剂量组明显增加P< 0. 05) 。 在雄性仔鼠中,三组实验组与溶剂对照组比较,在垂直运动次数水平运动时间和水平运动次数指标上都有所增加,其中高剂量组的垂直运动次数与溶剂对照组比较差异有统计学意义P<0. 05) 。 结论 妊娠期母鼠添加营养补充剂能够增加仔鼠的体质量,利于仔鼠的生长发育,并且能够在不增加实验动物自主活动的情况下,增加其探索行为

Abstract:

Abstract: Objective To observe the effect of adding multiple vitamins and mineral nutritional supplements during pregnancy on the autonomy and exploration behavior of mother and filial mice rats, as well as, on the development of filial mice. Method SPF Kunming mice were randomly divided into low-dose group, medium-dose group, high-dose group, and vehicle control group after mating and seeing the suppository. The nutritional supplements added during pregnancy were converted into mice according to the recommended daily intake of 2 g / d. Comparing to the solvents as the control group, the experimental group divided into 3 groups, whose effective dose were 150 mg / ( kg· d) , 300 mg / ( kg· d) and 600 mg / ( kg· d) , respectively. Observing the birth weight, weaning weight and
weaning weight index of 1 week after weaning, at the same time, we conduct the open field experiment on the mother and filial mice 1 week after weaning to observe their behavioral differences. Result The birth weight of the 3 dose groups increased compared with the control group, and the difference between the high dose group and the control group was statistically significant ( P<0. 05) . The body weight of the filial mice on the day of weaning was significantly higher than that of the control group ( P<0. 05,P<0. 01) . One week after weaning, the weight of the 3 dose groups increased significantly compared with the control group ( P<0. 01) . There was no significant changes in the 2 analysis indexes of horizontal and vertical movements of postpartum mother rats ( P> 0. 05 ) , and the 2 analysis indexes of the staying time in the central area and the numbers of crossing the central area showed an increasing trend. One week after weaning, there was no significant difference between the horizontal and vertical movement indexes of female filial mice ( P > 0. 05) , but the horizontal movement indexes showed an increase of 5. 16% and 14. 79% in the medium and high dose groups; in the medium and high dose groups, the residence time of the central district increased by 4. 59% and 72. 95% respectively, and the high-dose group increased significantly ( P<0. 01) ; the number of crossings the central area increased by 8. 58% and 56. 89%, which the high-dose group increased significantly ( P<0. 05) . In male filial mice, 3 experimental groups compared with the control group had an increase in the number of vertical exercise times, horizontal exercise time and horizontal exercise number of times. Among them, the difference in the number of vertical exercises between the high-dose group and the control group was statistically significant ( P< 0. 05 ) . Conclusion The addition of nutritional supplements to pregnant mothers during pregnancy can increase the body weight of the filial mice, which is benefit to the growth and development of the filial mice, and can increase their exploratory behavior without increasing the autonomous activity of the experimental animals.