Objectives 1.To develop a novel application for smartphones to capture on-farm ketosis monitoring data. The app will be designed to work on android phones and i-phone/i-pads. The app will allow collection of data for the three most common testing modalities (urine, milk, and blood ketones). ◦App will support data collection through: app interface, sensors, and other existing data sources. ◦Treatment assignment and reminders from inputted ketosis results. ◦Changes in herd incidence flags user to investigate herd management and nutrition changes. 2.To develop a data warehouse to securely store data. The warehouse can store data in distributed or centralized format. This warehouse will have the capability to collect and store data from different app users and other data sources (i.e. dairy farms and veterinary practices). 3.To assess current knowledge of ketosis research, health data tracking, and work-related smartphone app use by dairy farmers through use of a baseline survey at launch of the app. 4.To assess utility of the app and the change in adoption of research knowledge via the app and its connectivity to web-based resources. Funding Program: OMAFRA / UofG Partnership - KTT Keywords: Ketosis monitoring treatment dairy app Theme: Production Systems - Animal Commodity/Sector: Animal Production