Most rubber liners used in Australia have an expected life span of 2500 cow milkings or 6 months, whichever occurs first. The time factor (6 months) is just as important as the number of milkings for determining when they should be changed.

The time factor is just as important as the number of milkings for determining when liners should be changed.

Silicone liners have a longer lifespan; commonly double that of normal rubber based liners (5000 cow milkings).

You can either calculate this yourself, or you could use the Liner Life Calculator tool in the Countdown Mastitis Toolkit app (available free for both iOS and Android smartphones) to help calculate the correct liner change date, and also to send you a reminder when that time arrives.

Liner life calculation

Herds participating in the Dairy Focus Mastitis Control System and/or the Dairy Focus Mastitis Diary have their liner change interval monitored, and are reminded to ensure liners are changed on time, every time.