Parshad R K
Department of Zoology, Punjab Agricultural University, Ludhiana, India.
Indian J Exp Biol. 1993 Dec;31(12):991-2.
Food consumption per day per rat decreased in animals kept on restricted feeding schedules (2, 4, 8 and 12 hr) during adulthood but it remained unchanged in immature rats except in a group which was restricted to feed for 2 hr. The body weight gain decreased significantly in both the age groups. Epididymal sperm concentration did not change with feeding restriction in adult rats but decreased significantly in rats which attained puberty during the study period. Conception rate in females after mating with males under study decreased considerably. Percentage of female pups was greater in litters obtained after mating with males kept on 2, 4 and 8 hr per day feeding schedules during prepubertal period. The results, thus reveal that restricted feeding during prepubertal period decreases fertility and affects sex ratios in rats.
成年期处于限时进食计划（2、4、8和12小时）的大鼠，其每日每只大鼠的食物消耗量减少，但未成熟大鼠的食物消耗量保持不变，不过有一组限制进食2小时的除外。两个年龄组的体重增加均显著下降。成年大鼠的附睾精子浓度不会因进食限制而改变，但在研究期间进入青春期的大鼠中，附睾精子浓度显著下降。与受试雄性大鼠交配后的雌性受孕率大幅下降。在青春期前阶段，与每日进食2、4和8小时的雄性大鼠交配后所产的幼崽中，雌性幼崽的比例更高。因此，结果表明青春期前限时进食会降低大鼠的生育能力并影响其性别比例。
