Как по Английски будет leches preliminares

Как переводится Foremilks на Русский язык:

Что значит Foremilks в Английском языке:

noun

The milk obtained in the first part of one session of breastfeeding a baby or milking a farm animal, which contains less fat than the milk at the end of the session (the hindmilk)

Примеры использования:

I was making too much foremilk and not enough hindmilk