Non-healing white line disease on the lateral claw of a right hindlimb before treatment.

How to treat non-healing claw lesions

By Steve Mason on

Non-healing (nh) bovine hoof horn lesions, characterized by penetration of the horn capsule and association with white line disease (nhWLD) and sole ulcers (nhSU) are frequently encountered in dairy herds endemically affected by digital dermatitis (DD). Lesions of this type are associated with more severe lameness, often leading to claw amputation or slaughter and they respond poorly to standard DD treatment. Researchers in Austria recently described a successful therapy for such lesions.

DD Treatments That Work

By Steve Mason on

Few claims about the efficacy of products used to treat digital dermatitis (DD) are supported by any conclusive scientific evidence. Not all treatment trials provide conclusive evidence – many reported trials are poorly designed, leading to bias towards a particular outcome.
A recent study considered a large number of DD treatment trials, eliminating all but four that were rigorously designed to give conclusive, unbiased results.

Multiple Bacterial Species Are Involved in DD Lesions

By Steve Mason on

Previous studies have demonstrated that multiple bacterial species are associated with digital dermatitis (DD) lesions, with spirochetes being the most commonly identified organism. A recent study at Iowa State University demonstrated that, although spirochetes are the predominant bacteria present in the later stages of lesion development, many other bacterial species are involved in the earlier stages.

Little Scientific Evidence for Effectiveness of CuSO4 Foot Bathing

By Steve Mason on

The frequent claim that copper sulfate (CuSO4) is effective in controlling digital dermatitis (DD) is supported by little scientific evidence. Only one of seven articles evaluated in a recent study found a positive effect of CuSO4. In addition, most of these studies are relatively small, do not compare CuSO4 with no treatment (negative control), and, often, no clear positive effect of CuSO4 is demonstrated. Until better studies have been conducted, the efficacy of CuSO4 foot baths in controlling DD remains largely unproven.