A method and system for monitoring the condition of animals provides for current height and weight measurements taken from an animal in order to automatically derive a height-to-weight ratio. The height-to-weight ratio thus obtained may be used to determine whether or not an animals overall physical condition lies inside tolerance limits in relation to its predetermined expected development. An apparatus for implementing the method of the invention may include a control system configured to determine the height-to-weight ratio and may within a control system of an animal installation. The supply of feed to an animal may be adjusted in response to a deviation of its measured height weight ratio from a target or benchmark value.
