Lameness Prevalence and Risk Factors in Large Dairy Farms in Upstate New York. Model Development for the Prediction of Claw Horn Disruption Lesions

PloS One
Carla FoditschRodrigo Carvalho Bicalho

Abstract

The main objectives of this prospective cohort study were a) to describe lameness prevalence at drying off in large high producing New York State herds based on visual locomotion score (VLS) and identify potential cow and herd level risk factors, and b) to develop a model that will predict the probability of a cow developing claw horn disruption lesions (CHDL) in the subsequent lactation using cow level variables collected at drying off and/or available from farm management software. Data were collected from 23 large commercial dairy farms located in upstate New York. A total of 7,687 dry cows, that were less than 265 days in gestation, were enrolled in the study. Farms were visited between May 2012 and March 2013, and cows were assessed for body condition score (BCS) and VLS. Data on the CHDL events recorded by the farm employees were extracted from the Dairy-Comp 305 database, as well as information regarding the studied cows' health events, milk production, and reproductive records throughout the previous and subsequent lactation period. Univariable analyses and mixed multivariable logistic regression models were used to analyse the data at the cow level. The overall average prevalence of lameness (VLS > 2) at drying off was...Continue Reading

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Citations

May 31, 2018·Tropical Animal Health and Production·Tiago Facury MoreiraAntônio Ultimo de Carvalho
Oct 4, 2016·The Journal of Dairy Research·Katrin WilhelmManfred Fürll
Sep 30, 2019·Journal of Dairy Science·Ruan R DarosMarina A G von Keyserlingk
Oct 18, 2019·BMC Veterinary Research·Andreas W OehmSonja Hartnack
Jan 12, 2021·Frontiers in Veterinary Science·Andreas W OehmRoswitha Merle

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Software Mentioned

Medcalc
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