The fresh secretion from animals for the nutrition of their young ones is known as ...

Which of the following hormones stimulates milk secretion in females?

What is the yellowish fluid produced during the initial days of lactation after parturition called?

Which hormone acts on the uterus during parturition?

$A$: Colostrum is a very efficient means of transferring immunity to a newborn.
$R$: $IgM$ from mother's milk protects the baby from the respiratory infection usually affecting in young age.

Which mechanism is responsible for parturition?