The automatic weighing system of the animal Afiweight is located at the exit of the milking parlour along the return route of the animal. The weighing is done “by passage“ that’s why the animals are not stopped or caught. Having available the weight of each animal and be able to evaluate the variations during the lactation represents an important working tool to be used combined with data related to the milk yield. The automatic weighing system can also be combined with the separation gate Afisort. In case both of these products will be installed in the same area and they will share the same identification system of the animal (electrical components).