AUTHOR=La Shaokai , Li Hao , Zhang Yan , Abaidullah Muhammad , Niu Jiakuan , Gao Zimin , Liu Boshuai , Ma Sen , Cui Yalei , Li Defeng , Shi Yinghua TITLE=Different sources of alfalfa hay alter the composition of rumen microbiota in mid-lactation Holstein cows without affecting production performance JOURNAL=Frontiers in Veterinary Science VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2024.1433876 DOI=10.3389/fvets.2024.1433876 ISSN=2297-1769