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Open AccessArticle

Validation of an Automated Body Condition Scoring System Using 3D Imaging

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Hincks Centre For Entrepreneurial Excellence, Cork Institute of Technology, Cork, T12 P928 Co. Cork, Ireland
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Department of Agricultural, Food and Forestry Systems, University of Florence, 50145 Firenze, Italy
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Moorepark Animal & Grassland Research and Innovation Centre, Teagasc, Fermoy, P61 C997 Co. Cork, Ireland
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Unit 2, True North Technologies, Shannon Business Centre, Shannon, V14 YT99 Co. Clare, Ireland
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Author to whom correspondence should be addressed.
Agriculture 2020, 10(6), 246; https://doi.org/10.3390/agriculture10060246
Received: 31 May 2020 / Revised: 19 June 2020 / Accepted: 24 June 2020 / Published: 26 June 2020
Body condition scores (BCS) measure a cow’s fat reserves and is important for management and research. Manual BCS assessment is subjective, time-consuming, and requires trained personnel. The BodyMat F (BMF, Ingenera SA, Cureglia, Switzerland) is an automated body condition scoring system using a 3D sensor to estimate BCS. This study assesses the BMF. One hundred and three Holstein Friesian cows were assessed by the BMF and two assessors throughout a lactation. The BMF output is in the 0–5 scale commonly used in France. We develop and report the first equation to convert these scores to the 1–5 scale used by the assessors in Ireland in this study ((0–5 scale × 0.38) + 1.67 → 1–5 scale). Inter-assessor agreement as measured by Lin’s concordance of correlation was 0.67. BMF agreement with the mean of the two assessors was the same as between assessors (0.67). However, agreement was lower for extreme values, particularly in over-conditioned cows where the BMF underestimated BCS relative to the mean of the two human observers. The BMF outperformed human assessors in terms of reproducibility and thus is likely to be especially useful in research contexts. This is the second independent validation of a commercially marketed body condition scoring system as far as the authors are aware. Comparing the results here with the published evaluation of the other system, we conclude that the BMF performed as well or better. View Full-Text
Keywords: Body condition score; cows; automated; validation; precision technology Body condition score; cows; automated; validation; precision technology
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MDPI and ACS Style

O’ Leary, N.; Leso, L.; Buckley, F.; Kenneally, J.; McSweeney, D.; Shalloo, L. Validation of an Automated Body Condition Scoring System Using 3D Imaging. Agriculture 2020, 10, 246.

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