colostrum

/kuh-los-truhm/US // kəˈlɒs trəm //UK // (kəˈlɒstrəm) //

牛初乳,牛乳,牛奶,牛黄

Definitions

n.名词 noun

1
- : a yellowish liquid, especially rich in immune factors, secreted by the mammary gland of female mammals a few days before and after the birth of their young.

For the first few days after giving birth, mothers produce colostrum, a thick, yellow, concentrated milk packed with compounds like the antibody IgA and lactoferrin, an abundant protein that boosts a baby’s immunity.
By nursing the colostrum out of the breasts, it will favor and hasten the secretion of milk.
Examined with the microscope, it is found to contain colostrum.
The first product of the mammæ is not the proper milk secretion, but is a yellowish fluid called colostrum .
After the calf is a few days old, colostrum changes to what is commonly known as milk.
Colostrum, ko-los′trum, n. the first milk of a mammal after parturition.