Present paper presents a real-time animal monitoring solution envisaged for ruminants. The complete solution includes a wearable collar enabled with inertial sensors and a thermometer, a sensor gathering gateway that generates alarms and interfaces with a cloud hosted application that implements system analytics, and video recording tools that allow the supervision of telemetry data. System operation supports a triple mode: it operates in a learning mode where it gathers sensor data, an enriched version integrated with video recording information to enable learning data supervision, and a monitoring mode where the wearable system autonomously classifies animal behavior.