Cattle should be adequately restrained, either in a crush or tied by halter and lead, depending on the temperament and history of the animal, to allow safe collection of samples.

Before collecting milk, ensure hands are thoroughly washed. Wash teats to stimulate let down. After collection, teat(s) should be dipped to prevent infection.

When collecting faeces and urine samples, gloves should be worn and hands washed after completion of the activity.