The presentation focuses on the use of URBAN EcoProtector UV-C in calf rearing and its impact on calf health and farm hygiene. The focus is on several independent scientific studies conducted by Dr. Theresa Scheu and Lena Kruse. These studies examine the extent to which UV-C disinfection of the housing environment can contribute to the reduction of pathogens, particularly Cryptosporidium parvum. The results demonstrate the positive effects of UV-C disinfection on calf health and development. The presentation provides an overview of the experimental approaches, key findings, and the practical significance of UV-C technology for hygiene management in calf rearing.