There are several websites and online platforms that can be helpful for discussions and clarification of doubts related to the Animal Husbandry and Veterinary Science optional subject. One such platform is EduRev, which is a comprehensive learning portal that offers a wide range of resources for UPSC exam preparation, including the Animal Husbandry and Veterinary Science optional subject.

EduRev:
- EduRev is a popular online platform that provides study materials, notes, videos, and practice quizzes for various subjects, including Animal Husbandry and Veterinary Science.
- It has a dedicated section for UPSC exam preparation, where students can connect with experts and fellow aspirants to discuss their doubts and queries related to the optional subject.
- The platform allows users to post their questions and get answers from the community, thus promoting active discussions and knowledge sharing.
- The content on EduRev is regularly updated and curated by experts, ensuring that students have access to accurate and reliable information.

Benefits of using EduRev:
- Comprehensive study material: EduRev offers a wide range of study materials, including notes, videos, and practice quizzes, covering all the important topics of Animal Husbandry and Veterinary Science.
- Active community: The platform has a large community of UPSC aspirants, including experts and toppers, who actively participate in discussions and provide valuable insights and guidance.
- Doubt clarification: Users can post their doubts and queries on the platform, and experts or fellow aspirants are quick to respond and provide clarifications. This helps in better understanding of the subject and clearing any misconceptions.
- Regular updates: EduRev ensures that the study material is regularly updated as per the latest syllabus and exam pattern, providing students with relevant and up-to-date content.

In conclusion, EduRev is a reliable and comprehensive online platform that can be utilized for discussions and clarification of doubts related to the Animal Husbandry and Veterinary Science optional subject. It provides a wide range of study materials, an active community, and regular updates, making it a valuable resource for UPSC aspirants.