搜索结果: 1-1 共查到“生物学 Zambia”相关记录1条 . 查询时间(0.061 秒)
Provitamin A–biofortified maize increases serum β-carotene, but not retinol, in marginally nourished children: a cluster-randomized trial in rural Zambia
beta-carotene biofortification deficiency vitamin A serum retinol provitamin A Zambia
2018/12/3
Background: Vitamin A deficiency remains a nutritional concern in sub-Saharan Africa. Conventionally bred maize hybrids with high provitamin A carotenoid concentrations may have the potential to impro...