AUTHOR=Yu Aiying , Sun Lingli , Chen Lian , Wang Dan , Li Zhiyi , Wang Yuan , Wang Zhenjiang , Lin Sen TITLE=The biological functions of proanthocyanidin and its application in pig production JOURNAL=Frontiers in Veterinary Science VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2025.1565501 DOI=10.3389/fvets.2025.1565501 ISSN=2297-1769