N Charfeddine

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The aims of this study were (1) to estimate the phenotypic association between different degrees of severity of claw disorders and production, fertility performance, and longevity in Spanish dairy cattle, and (2) to quantify its economic impact at the animal and herd level. In this study, claw data comprised 108,468 trimmings collected between 2012 and 2014(More)
Data of first-lactation Holstein cows including claw disorders, foot and leg type traits, and structure and capacity type traits were used to study the phenotypic association of conformation and body weight with claw health status. The claw disorders studied were digital and interdigital dermatitis, sole ulcer, white line disease, and an overall claw(More)
Genetic parameters of 7 claw health traits from Spanish dairy cattle were estimated and the predictive ability of linear and ordinal threshold models were compared and assessed. This study included data on interdigital and digital dermatitis (DE), sole ulcer (SU), white line disease (WL), interdigital hyperplasia (IH), interdigital phlegmon (IP), and(More)
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