New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm

Objective This study categorized farm management levels to improve the productivity and uniformity of pork from pigs shipped from farms. Methods A total of 48,298 pigs were grouped (A, B, C, D group) using the k-means algorithm, carcass weight and backfat thickness. The results of the grouping were...

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Main Authors: Youngho Lim, Jaeyoung Kim, Gwantae Kim, Jungseok Choi
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2025-02-01
Series:Animal Bioscience
Subjects:
Online Access:http://www.animbiosci.org/upload/pdf/ab-24-0350.pdf
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author Youngho Lim
Jaeyoung Kim
Gwantae Kim
Jungseok Choi
author_facet Youngho Lim
Jaeyoung Kim
Gwantae Kim
Jungseok Choi
author_sort Youngho Lim
collection DOAJ
description Objective This study categorized farm management levels to improve the productivity and uniformity of pork from pigs shipped from farms. Methods A total of 48,298 pigs were grouped (A, B, C, D group) using the k-means algorithm, carcass weight and backfat thickness. The results of the grouping were used to classify Farm Management Grades (A, B, C, D grade). Results The proportion of primal cuts in pigs, according to the new classification method, increased from group A to group D for shoulder blade, shoulder picnic, and ham, but decreased for loin and belly. In the regression analysis of the five primal cuts (shoulder blade, shoulder picnic, loin, belly, and ham) production (kg) for each group, all regression equations showed low errors (MAE<0.7), indicating that the model can predict the production of primal cuts by group. As the Farm Management Grade decreased, the proportion of pigs in the group with large differences from the mean of carcass weight and backfat thickness of the whole pig increased. Conclusion The results of this study confirmed the differences in primal cut traits by pig grouping and created a method to classify farms who ship non-uniform pigs. This is expected to provide indicators for improvement and supplementation to farms that ship uneven pigs, helping to enhance the production of standardized pigs at the farm level.
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publishDate 2025-02-01
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spelling doaj-art-b7579d4ab33742768e2b2223bf907aab2025-01-03T04:14:23ZengAsian-Australasian Association of Animal Production SocietiesAnimal Bioscience2765-01892765-02352025-02-0138237138010.5713/ab.24.035025326New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithmYoungho Lim0Jaeyoung Kim1Gwantae Kim2Jungseok Choi3 Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea Department of Animal Science, Chungbuk National University, Cheongju 28644, KoreaObjective This study categorized farm management levels to improve the productivity and uniformity of pork from pigs shipped from farms. Methods A total of 48,298 pigs were grouped (A, B, C, D group) using the k-means algorithm, carcass weight and backfat thickness. The results of the grouping were used to classify Farm Management Grades (A, B, C, D grade). Results The proportion of primal cuts in pigs, according to the new classification method, increased from group A to group D for shoulder blade, shoulder picnic, and ham, but decreased for loin and belly. In the regression analysis of the five primal cuts (shoulder blade, shoulder picnic, loin, belly, and ham) production (kg) for each group, all regression equations showed low errors (MAE<0.7), indicating that the model can predict the production of primal cuts by group. As the Farm Management Grade decreased, the proportion of pigs in the group with large differences from the mean of carcass weight and backfat thickness of the whole pig increased. Conclusion The results of this study confirmed the differences in primal cut traits by pig grouping and created a method to classify farms who ship non-uniform pigs. This is expected to provide indicators for improvement and supplementation to farms that ship uneven pigs, helping to enhance the production of standardized pigs at the farm level.http://www.animbiosci.org/upload/pdf/ab-24-0350.pdfk-meanslandrace×yorkshire×duroc (lyd) pigmanagement gradepig graderegression analysisvcs2000
spellingShingle Youngho Lim
Jaeyoung Kim
Gwantae Kim
Jungseok Choi
New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
Animal Bioscience
k-means
landrace×yorkshire×duroc (lyd) pig
management grade
pig grade
regression analysis
vcs2000
title New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
title_full New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
title_fullStr New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
title_full_unstemmed New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
title_short New management grading for pig farms: management grading system using pig carcass weight, back fat thickness and k-means algorithm
title_sort new management grading for pig farms management grading system using pig carcass weight back fat thickness and k means algorithm
topic k-means
landrace×yorkshire×duroc (lyd) pig
management grade
pig grade
regression analysis
vcs2000
url http://www.animbiosci.org/upload/pdf/ab-24-0350.pdf
work_keys_str_mv AT youngholim newmanagementgradingforpigfarmsmanagementgradingsystemusingpigcarcassweightbackfatthicknessandkmeansalgorithm
AT jaeyoungkim newmanagementgradingforpigfarmsmanagementgradingsystemusingpigcarcassweightbackfatthicknessandkmeansalgorithm
AT gwantaekim newmanagementgradingforpigfarmsmanagementgradingsystemusingpigcarcassweightbackfatthicknessandkmeansalgorithm
AT jungseokchoi newmanagementgradingforpigfarmsmanagementgradingsystemusingpigcarcassweightbackfatthicknessandkmeansalgorithm