Nguyen, N., Huynh, L. and Ha, T. 2017. Optimizing the parameters of manure scraper equipment in cow milk dairy farm by the manure scraper model. VNUHCM Journal of Science and Technology Development. 20, K6 (Oct. 2017), 35-42. DOI:https://doi.org/https://doi.org/10.32508/stdj.v20iK6.1169.