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

Which hormone is secreted at the time of parturition?

Which hormone injection is administered by doctors to induce parturition?

Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$ :
Assertion $A$ : Breast-feeding during the initial period of infant growth is recommended by doctors for bringing up a healthy baby.
Reason $R$ : Colostrum contains several antibodies absolutely essential to develop resistance in the newborn baby.
In the light of the above statements,choose the most appropriate answer from the options given below:

Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of

Which of the following mammals has the highest percentage of lactose in its milk?