Abstract: An automated modular system for officially controlling the quantity and quality of milk production at a dairy farm site, including the steps of:assigning each dairy herd an identification code; assigning each milk producing animal in each herd a unique animal identification code;providing measuring quantitative milk production from an individual animal using a milk flow meter temporarily connectable with a milking machine for an individual animal, which milk flow meter is capable of continuously weighing milk produced per unit time by an individual animal during a single milking session;providing qualitative analysis of the composition of a sample of milk from an individual dairy animal, which includes an infra-red optical probe;providing system control and memory connected to the milk flow meter and to the qualitative analysis;entering a dairy herd code into the system control and thereby initiating control of the herd and accessing stored data for herd and each individual dairy animal therein;entering an in