Question

This method is carried out for the castration of male pigs
A. Burdizzo
B. Hot iron
C. Knife
D. Elastrator

Answer 1

Hint:
The testicular cords and related blood vessels are severed or crushed by the burdizzo, a metal tool. As a result, the testicles lose blood flow and deteriorate inside the scrotum. This process of castration also involves no blood. The testicles are reabsorbed by the body after being crushed by the Burdizzo, which also breaks both spermatic cords. It's well known that the Burdizzo method frequently fails. The Burdizzo method frequently fails to castrate a male due to faulty technique or poor clamp maintenance.
Whether or not the wound is open distinguishes surgical castration of cattle from the use of a Burdizzo (emasculator). Both procedures take some skill to do correctly, but the Burdizzo has a higher failure rate than surgical castration in terms of successfully castrating the animal. Castration can be carried out through hormonal, chemical, or physical methods.

Complete answer:
An elastrator uses a tool to stretch an elastrator band—a thick rubber band—over the testicles and scrotum. The scrotum dries out and comes off over the course of about two weeks. Verify that both testicles are in the scrotum beneath the band before castrating with an elastrator band. Castration can be achieved surgically or by cutting off the blood supply to the testicles with an elastrator, a banding device. The testicular cord and related tissues can also be crushed using a specialized clamp known as a Burdizzo, however, this is less common.
So, elastrator is the method carried out for the castration of male pigs.

Option ‘D’ is correct

Note:
Castration is the removal or deactivation of a male animal's testicles. Castration is frequently performed on male sheep, cattle, goats, and pigs to prevent hostility and eventual harm. Castration can be done with a rubber ring or a blade.
Castration is any procedure, including surgical, chemical, and non-surgical ones, that renders a person incapable of using their male gonad, or testicles. While chemical castration uses pharmaceutical medications to deactivate the testes, surgical castration entails bilateral orchiectomy (excision of both testicles).