After Graduation, you may join Government/Private veterinary hospital and start working as a Veterinary Doctor  or may start your own clinic or join NGOs working for Animal welfare which hires Veterinary Science graduates.

You may work as research professionals in the field of Animal health and medicines,  at places like- Poultry farms, Livestock farms, Zoos etc.

You can also work in the Pharmacy sector that deals with veterinary medicines and vaccines.

I hope this helps you!