Farm decision support is provided relating to a herd of animals (A1, A2, A3) in a farm environment (100). Each animal (A1, A2, A3) is associated with a respective identification device (T1, T2； T3). The farm environment (100) includes a brush station (B1 ) having a reader unit (224) configured to remotely register an identity of each animal (A1, A2, A3) visiting the brush station (B1 ) via the identification devices (T1, T2； T3). A detection means (242) detects a repositioning of the brush (210) from a neutral position resulting from an animal (A3) pushing a part of itself against the brush (210). The reader unit (244) has a detection range within which identity data (ID3) can be read out from an identification device (T3). In response to a detected repositioning of the brush (210), the reader unit (244) registers the identity data (ID3) from a first detected identification device (T3) within the detection range, and forwards the identity data (ID3) to a processing unit (120) via an output interface (246). The processing unit (120) stores data (d1 ) representing animal visits to the brush station (B1 ) as the decision support.
