Well it completely depends on what your interest lies in. BDS is for those who wish to pursue their career in Dental work and science, and Veterinary are those who wish to treat animals. Both have different scopes of development and both run on different lanes. Both are equally important fields, since you need to take care of your teeth, and animal life holds importance as well. So go with what you are interested in. Their are great future aspects for both.
I hope this helps you. All the best!!