How often do you back line cattle?

For your information, to"back line" an animal is another phrase referring to pouring dewormer along the back-line of an animal so that it drips down and covers the entire body of the animal with minimal waste.

How often this has to be done depends on what deworming solution you are using, when you apply the dewormer and how badly your animals are affected with external parasites. It would be best to either read the label of the deworming solution, or contact a large animal veterinarian for information on when and how often back-line deworming solution should be applied to your cattle.