Question

The hormone injected to cows for excessive milk production is:
A. Oestrogen
B. Progesterone
C. Oxytocin
D. Testosterone

Answer 1

Hint: The hormone which helps to relax the smooth muscles is also responsible for the production of excessive mils in cows. All the above-mentioned hormones are steroid hormones and work on reproductive organs.

Complete answer: Oestrogen is a female reproductive hormone that is secreted from Graafian follicle.
This hormone helps in the maintenance of female characters like it maintains the menstrual cycle, it helps to soften the female body and female voice, etc.
Progesterone is also a female reproductive hormone that is secreted from the corpus luteum. It regulates the menstrual cycle.
Oxytocin is a hormone that helps to relax the smooth muscles. This hormone is very much essential during the parturition or baby birth. It helps to relax the smooth muscles of the uterus and that helps in the baby’s birth. Oxytocin has also an important role in milk production and milk release.
So, in cows oxytocin is injected for the overproduction of milk.
Testosterone is a male reproductive hormone that is released from Sertoli cells and helps in the development of sperm and other masculine characteristics like harshening of the male voice, developments of hairs in the body muscle development, etc.

So, the correct answer is option C. Oxytocin.

Note: Oxytocin is the best-known female reproductive hormone that has a great role in the female body. It is released during labor and after stimulation in the nipples. It is an organizer for childbirth and breastfeeding. Oxytocin is used as a therapeutic drug during labor and delivery.