子宫组织营养素在母牛发情周期中的变化规律及对胚胎早期发育作用研究进展

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中图分类号：S823.3 文献标志码：A 文章编号：0366-6964（2026）01-0013-09

Abstract： Uterine tissue nutrients are nutrients secreted by the uterus during animal reproduction， including amino acids，proteins，lipids，sugars，and other metabolites.Before implantation，the embryo relies on the tissue nutrients secreted by the uterus for nutrition. Their secretion is dynamically regulated by the estrous cycle，pregnancy status，uterine health，and maternal nutritional status. This article summarizes the changes in uterine fluid tissue nutrients under the estrous cycle， pregnancy status，nutritional levels，and endometritis. Through the study of these paterns，a more favorable uterine environment can be provided for the early development of embryos.

Keywords：cow; tissue nutrients；estrous cycle；endometritis;nutritional factors ∗ Corresponding author： TAO Jinzhong，E-mail：tao_jz@nxu. edu.cn

子宫中的组织营养素（histotroph）是指母畜在生殖周期中输卵管和子宫上皮细胞分泌的含有离子、生长因子、激素、蛋白质、脂质、葡萄糖、氨基酸、外泌体和其他分子的复杂混合物的液体[，这些液体为着床前的胚胎提供营养[2]。（剩余20603字）