A method and installation for automatically determining the readiness of an animal for being weaned off liquid feed and onto dry feed. The height of an animal in an animal installation is automatically measured using a height measurement system at a selected location within the installation. A suitable location within an installation for providing a height gauge may include a feeding station, a cleaning station or other treatment station of an animal. Additional parameters may be used for the determination of readiness to wean in combination with dry feed consumption rate, such as animal age, weight or other animal dimensions. In determining the height, the method may include making a determination of the overall physical condition of the animal and may include a determination of the height-to-weight-ratio of an animal. The installation may include an automatic animal weighing system. Measured values may be stored in a control system memory for monitoring the growth of individual animals. Animal identification means may be provided at the points of measurement of any parameter of an animal.
