Phuong, N. T. M., and N. Phan. “Plumage Cleanliness, Foot Health, and Growth Performance of Co Ducks Provided With Different Tray-Based Water-Contact Areas under Semi-Dry Housing: Water Contact and Welfare in Co Ducks”. Letters In Animal Biology, vol. 6, no. 2, Sept. 2026, pp. 97-107, doi:10.62310/liab.v6i2.427.