Lameness is the third most expensive health problem of dairy animals after mastitis and infertility. Affected animals show poor production and reproduction performance, added costs of treatment, culling and replacement result in losses to farmers. The study was conducted on 1946 dairy cows raising in 91 households in Duc Trong district, Lam Dong province to evaluate the current status of lameness in dairy cows. Locomotion score (LS) have been used to identify and classify of severity of lameness based on observation of cows standing and walking (gait), with special emphasis on their back posture. Visually scored on a scale of 1 to 5, where a score of 1 reflects a cow that walks normally and a score of 5 reflects a cow that is three-legged lame. Generally, LS of 2 and 3 are considered to represent sub-clinically lame cows; whereas LS of 4 and 5 represent those cows that are clinically lame. Cows scoring 2 or higher have been exanimated and trimmed to evaluate lesion. The result showed that lemeness occurs in all household with the rate of 14.8% of the herd. The clinical lame (LS 4) is highest, accounted for 39.58%. Lameness appeared to all the 4 limbs, however the incidence is higher in the hind limbs than the front limbs. Sole ulcers and white line lesion are 2 of the most common lesions in dairy cows raising in households in Duc Trong district, Lam Dong province.
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