AUTHOR=Singh Mahak , Celina Apanai , Katiyar Rahul , Deori Sourabh , Singh Ashwani , Singh Vinay , Singh G. D. , Rajoriya J. S. , Kalita H. , Mishra V. K. TITLE=Alteration in sperm mitochondrial membrane potential and antioxidant biomarkers in summer adversely affects Hampshire-Ghungroo crossbred boar semen fertility in sub-tropical climate JOURNAL=Frontiers in Veterinary Science VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2025.1562988 DOI=10.3389/fvets.2025.1562988 ISSN=2297-1769