Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions

The aim of this observational study is to identify risk factors associated with body weight (BW) variability in three data sets (DS) in commercial conditions. A total of 1,009 (DS1), 460 (DS2), and 1304 (DS3) male and female crossbreed pigs (Pietrain × [Landrace × Large White]), respectively, were i...

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Autores: Lopez Verge, Sergio|||0000-0002-7499-6045, Gasa, Josep|||0000-0002-5828-7142, Farré, Mercè|||0000-0002-4184-5160, Coma Subirà, Jaume, Bonet, Jordi, Solà Oriol, David|||0000-0001-8365-340X
Formato: artículo
Fecha de publicación:2018
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:231222
Acesso em linha:https://ddd.uab.cat/record/231222
https://dx.doi.org/urn:doi:10.1093/tas/txy082
Access Level:acceso abierto
Palavra-chave:Correlation
Growth curves
Pigs
Risk factors
Variability
Coefficient of variation
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spelling Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditionsLopez Verge, Sergio|||0000-0002-7499-6045Gasa, Josep|||0000-0002-5828-7142Farré, Mercè|||0000-0002-4184-5160Coma Subirà, JaumeBonet, JordiSolà Oriol, David|||0000-0001-8365-340XCorrelationGrowth curvesPigsRisk factorsVariabilityCoefficient of variationThe aim of this observational study is to identify risk factors associated with body weight (BW) variability in three data sets (DS) in commercial conditions. A total of 1,009 (DS1), 460 (DS2), and 1304 (DS3) male and female crossbreed pigs (Pietrain × [Landrace × Large White]), respectively, were included in each trial. Pigs were periodically weighed until slaughter. Then, variables such as length of gestation, length of lactation, parity, litter size, sex, birth BW, and ADG were considered. Pigs remaining on the farm after two loads to the slaughterhouse were defined as last group of animals sent to slaughterhouse (LGS). Descriptive statistics of variability were calculated, and a risk analysis approach was used to look for the factors related to LGS. A multiple logistic regression was performed to identify all variables that were significant (P < 0.05). The risk ratio (RR), odds ratio (OR), and population attributable risk (PAR) were calculated for all of the significant variables after transforming all of them into binary factors using the 25th percentile as the cut-off point. Results showed that the major part of the variability (as CV) comes from birth (20% to 25%) and increased only a little during lactation and 14-d post weaning. From this point onwards, CV tended to decrease, as pigs got closer to the marketing weight (down 11.5% to 12.7%). Regarding the indicators selected, RR, OR, and PAR presented similar trends in the three DS studied. Therefore, for the variables finally included, these indicators had their minimum values at the start of the cycle and then gradually increased at the end. Those results, based on an epidemiological approach, suggest that the closer to the end of the cycle the greater the probability for a light piglet of being/becoming LGS. It might be explained by the shorter available time to efficiently implement preventive measures aimed to improve the performance of delayed pigs and, thus, reducing variability.Those results, based on an epidemiological approach, make sense as the probability for a light piglet to be a LGS increases the closer to the end of the cycle, due to the short time to implement preventive measures and increase the performance of delayed pigs and reduce variability. The differential PAR associated with both, the nursery and the growing period, was 1.7% and 1.5% for DS1, 5.1% and 3.1% for DS2, and 3.7% and 2.8% for DS3. For the lactation period, the results were 4.3% for DS2 and 4.5% for DS3. Results suggest that the most critical periods, in relation to retardation of growth in swine, are lactation and nursery. Implementing measures that maintain risk factors under or above thresholds, especially in the initial phases of growth, will reduce the percentage of LGS pigs and positively affect the overall homogeneity of the batch. 22018-01-0120182018-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/231222https://dx.doi.org/urn:doi:10.1093/tas/txy082reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2312222026-06-06T12:50:31Z
dc.title.none.fl_str_mv Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
title Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
spellingShingle Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
Lopez Verge, Sergio|||0000-0002-7499-6045
Correlation
Growth curves
Pigs
Risk factors
Variability
Coefficient of variation
title_short Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
title_full Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
title_fullStr Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
title_full_unstemmed Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
title_sort Potential risk factors related to pig body weight variability from birth to slaughter in commercial conditions
dc.creator.none.fl_str_mv Lopez Verge, Sergio|||0000-0002-7499-6045
Gasa, Josep|||0000-0002-5828-7142
Farré, Mercè|||0000-0002-4184-5160
Coma Subirà, Jaume
Bonet, Jordi
Solà Oriol, David|||0000-0001-8365-340X
author Lopez Verge, Sergio|||0000-0002-7499-6045
author_facet Lopez Verge, Sergio|||0000-0002-7499-6045
Gasa, Josep|||0000-0002-5828-7142
Farré, Mercè|||0000-0002-4184-5160
Coma Subirà, Jaume
Bonet, Jordi
Solà Oriol, David|||0000-0001-8365-340X
author_role author
author2 Gasa, Josep|||0000-0002-5828-7142
Farré, Mercè|||0000-0002-4184-5160
Coma Subirà, Jaume
Bonet, Jordi
Solà Oriol, David|||0000-0001-8365-340X
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Correlation
Growth curves
Pigs
Risk factors
Variability
Coefficient of variation
topic Correlation
Growth curves
Pigs
Risk factors
Variability
Coefficient of variation
description The aim of this observational study is to identify risk factors associated with body weight (BW) variability in three data sets (DS) in commercial conditions. A total of 1,009 (DS1), 460 (DS2), and 1304 (DS3) male and female crossbreed pigs (Pietrain × [Landrace × Large White]), respectively, were included in each trial. Pigs were periodically weighed until slaughter. Then, variables such as length of gestation, length of lactation, parity, litter size, sex, birth BW, and ADG were considered. Pigs remaining on the farm after two loads to the slaughterhouse were defined as last group of animals sent to slaughterhouse (LGS). Descriptive statistics of variability were calculated, and a risk analysis approach was used to look for the factors related to LGS. A multiple logistic regression was performed to identify all variables that were significant (P < 0.05). The risk ratio (RR), odds ratio (OR), and population attributable risk (PAR) were calculated for all of the significant variables after transforming all of them into binary factors using the 25th percentile as the cut-off point. Results showed that the major part of the variability (as CV) comes from birth (20% to 25%) and increased only a little during lactation and 14-d post weaning. From this point onwards, CV tended to decrease, as pigs got closer to the marketing weight (down 11.5% to 12.7%). Regarding the indicators selected, RR, OR, and PAR presented similar trends in the three DS studied. Therefore, for the variables finally included, these indicators had their minimum values at the start of the cycle and then gradually increased at the end. Those results, based on an epidemiological approach, suggest that the closer to the end of the cycle the greater the probability for a light piglet of being/becoming LGS. It might be explained by the shorter available time to efficiently implement preventive measures aimed to improve the performance of delayed pigs and, thus, reducing variability.Those results, based on an epidemiological approach, make sense as the probability for a light piglet to be a LGS increases the closer to the end of the cycle, due to the short time to implement preventive measures and increase the performance of delayed pigs and reduce variability. The differential PAR associated with both, the nursery and the growing period, was 1.7% and 1.5% for DS1, 5.1% and 3.1% for DS2, and 3.7% and 2.8% for DS3. For the lactation period, the results were 4.3% for DS2 and 4.5% for DS3. Results suggest that the most critical periods, in relation to retardation of growth in swine, are lactation and nursery. Implementing measures that maintain risk factors under or above thresholds, especially in the initial phases of growth, will reduce the percentage of LGS pigs and positively affect the overall homogeneity of the batch.
publishDate 2018
dc.date.none.fl_str_mv 2
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/231222
https://dx.doi.org/urn:doi:10.1093/tas/txy082
url https://ddd.uab.cat/record/231222
https://dx.doi.org/urn:doi:10.1093/tas/txy082
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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