Newly purchased or introduced large dairy animals are strictly quarantined in an isolation shed for a minimum period of 30 days (1 month) to monitor for incubation of infectious diseases before mixing with the resident herd.

The diphenylamine test detects adulteration of milk with untreated pond/river water based on the reaction of diphenylamine reagent in concentrated sulfuric acid with nitrates/nitrites commonly present in pond water, forming an intense blue color.

Analytical fat constants (such as Reichert-Meissl value, Polenske value, Iodine value, and Saponification value) characterize the molecular weight, saturation, and chain length of the constituent fatty acids forming the triglycerides.