Novel application of orange marigold flower petal (Tagetes erecta L.) as a dietary supplement to improve skin redness of Koi carps (Cyprinus carpio L.) - Lê, Hà; Pham, Long; Vo, Bao; Le, Nhan; Nguyen, Quan; Luu, Phu; Huynh, Thien; Nguyen, Khoa; Nguyen, Nam (VNUHCM Journal of Engineering and Technology, 2024)