Short communication: Accuracy of estimation of lameness, injury, and cleanliness prevalence by dairy farmers and veterinarians.

摘要: ABSTRACT Lameness, injuries, and cleanliness are considered important indicators of dairy cow welfare, milk production, quality. Previous research has identified that farmers globally underestimate the prevalence these cow-based measurements, but no information on perceptions veterinarians is available. Because often perceived as main providers health advice farms, objective present study was to evaluate relationship between true lameness, injury (hock, knee, neck), (udder, legs, flanks), estimated issues by their herd veterinarians. A cross-sectional conducted February 2016 July 2017. First, farm owner veterinarian were asked estimate neck, knee hock udder, leg, flank farm. The team then visited scored all lactating cows in for each measurement. Linear regression models used assess farmers, measurement, 93 herds enrolled had a median 55 milking housed tiestall (90%) freestall (10%) barns. Ten participated involved with 2 22 farms each. wide variation detected different measurements among (lameness: range = 19–72%, 36%; neck injuries: 0–65%, 14%; 0–44%, 12%; 0–57%, 25%; dirty udder: 0–55%, 13%; legs: 0–91%, 18%; flanks: 0–82%, 20%). For both perception measurement increased incrementally herd's increased. Overall, underestimated measurements. Farmers more accurately lameness higher than low prevalence, suggesting better awareness issue problems. Injuries less compared lower an opportunity knowledge transfer this area.