Prevalence of thin soles in the hind limbs of dairy cows housed on fully-floored vs. partially-floored mastic asphalt areas in Austria.

摘要: Abstract Excessive sole horn wear in cattle due to abrasive floors, such as new concrete and mastic asphalt, excessive trimming, are the leading causes of thin soles. This study compared prevalence soles Austrian dairy cows six herds housed on fully-floored asphalt (FMA) or partially-floored (PMA). All had last received hoof trimming at least 5 months before commenced. Sole thickness hind claws was measured ultrasonographically 97 two points each claw: (1) point 1 exactly tip pedal bone surface; (2) 2 approximately 3 cm caudally. Locomotion scored all claw lesions were categorised using a computerized database program evaluated cow- claw-level. An ANCOVA-model applied calculate effects different factors (breed, age, farm, days milk) covariates thickness. The cut-off measurement for defined ≤4.5 mm, accordance with recent study. Regarding health, FMA areas inferior PMA barn installations. In FMA, significantly higher (P = 0.01) mean lower than (59.7% vs. 12.5%; 5.35 mm 6.63 mm, respectively). There also more lame (P = 0.01). group prevalences white-line disease (59.6% 25%; P = 0.01) toe ulcers (12.3% 0%; P = 0.02) group.