Proceedings of the International Conference on Improving Tropical Animal Production for Food Security (ITAPS 2021)

Body Condition Score Data of Holstein Dairy Cattle: Reproducibility and Trend across Measurements

Authors
Agus Susanto1, *, Datta Dewi Purwantini1, Setya Agus Santosa1, Dewi Puspita Candrasari1
1Faculty of Animal Science, University of Jenderal Soedirman, Purwokerto Indonesia
*Corresponding author. Email: agus.susanto0508@unsoed.ac.id
Corresponding Author
Agus Susanto
Available Online 29 March 2022.
DOI
10.2991/absr.k.220309.014How to use a DOI?
Keywords
Dairy cows; Classifiers; Consistency; BBPTUHPT Baturraden
Abstract

Body condition score (BCS) data is generally scored by more than rater and the data is recorded several times after calving. The objective of the study was to quantify the reproducibility measurements among raters and its trend across time of measurements. The body condition score data of Holstein Cows were extracted from the database provided by the Indonesia National Breeding Centre for Dairy and Forage. The BCS data were recorded on January-December 2015 and January-April 2016, which was 4,709 data altogether rated by 4 raters. An R package of psych was used for analyzing the raters reproducibility in which intra-class correlation coefficient (ICC) of type 3 (a model with average fixed raters) was used. The statistical analysis was performed with R program. The mean BCS of rater 1, 2, 3 and 4 were 3.12, 3.08, 3.13 and 3.12, respectively being the average BCS across raters of 3.11. The minimum and maximum of BCS were 2.5 and 4.0, respectively. As much as 14.36 % of cows were categorized to be below standard BCS. The BCS trend across months when the cows were recorded shows a slight declining pattern, however the determination coefficients of the linear regression model were very low (0.02). The intraclass correlation among raters were 0.62-0.64 and 0.87-0.88 when BCS means was included in the computation. The determination coefficient of regression lines of mean BCS on each rater were 0.62-0.80. The study concludes that the reproducibility measurements among BCS data rated by the available raters were moderate to high. The reliability of BCS data among raters could be increased for example by providing intensive training to the raters. The BCS trend over month of measurements was relatively stable. The contribution of each rater to the mean of BCS across raters variation was not equal.

Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the International Conference on Improving Tropical Animal Production for Food Security (ITAPS 2021)
Series
Advances in Biological Sciences Research
Publication Date
29 March 2022
ISBN
978-94-6239-557-2
ISSN
2468-5747
DOI
10.2991/absr.k.220309.014How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Agus Susanto
AU  - Datta Dewi Purwantini
AU  - Setya Agus Santosa
AU  - Dewi Puspita Candrasari
PY  - 2022
DA  - 2022/03/29
TI  - Body Condition Score Data of Holstein Dairy Cattle: Reproducibility and Trend across Measurements
BT  - Proceedings of the International Conference on Improving Tropical Animal Production for Food Security (ITAPS 2021)
PB  - Atlantis Press
SP  - 69
EP  - 72
SN  - 2468-5747
UR  - https://doi.org/10.2991/absr.k.220309.014
DO  - 10.2991/absr.k.220309.014
ID  - Susanto2022
ER  -