Comparison of Different Count Models for Investigation of Some Environmental Factors Affecting Stillbirth in Holsteins
dc.authorid | Gevrekci, Yakut/0000-0002-4915-2238 | |
dc.authorid | Isci Guneri, Oznur/0000-0003-3677-7121 | |
dc.authorscopusid | 9633572400 | |
dc.authorscopusid | 35798517000 | |
dc.authorscopusid | 6506660805 | |
dc.authorscopusid | 22036852300 | |
dc.authorwosid | Gevrekçi, Yakut/Aeq-5272-2022 | |
dc.authorwosid | Takma, Çiğdem/Gxg-5818-2022 | |
dc.authorwosid | Güneri, Öznur/Jfj-2006-2023 | |
dc.contributor.author | Gevrekci, Y. | |
dc.contributor.author | Guneri, O. I. | |
dc.contributor.author | Takma, C. | |
dc.contributor.author | Yesilova, A. | |
dc.date.accessioned | 2025-05-10T17:12:25Z | |
dc.date.available | 2025-05-10T17:12:25Z | |
dc.date.issued | 2022 | |
dc.department | T.C. Van Yüzüncü Yıl Üniversitesi | en_US |
dc.department-temp | [Gevrekci, Y.; Takma, C.] Univ Ege, Dept Anim Sci, Fac Agr, Izmir, Turkey; [Guneri, O. I.] Univ Mugla Sitki Kocman, Dept Stat, Fac Sci, Mugla, Turkey; [Yesilova, A.] Yuzuncu Yil Univ, Dept Anim Sci, Fac Agr, Van, Turkey | en_US |
dc.description | Gevrekci, Yakut/0000-0002-4915-2238; Isci Guneri, Oznur/0000-0003-3677-7121 | en_US |
dc.description.abstract | Background: The objective of this study is comparing different count data models for stillbirth data. In modeling this type of data, Poisson regression or alternative models can be preferred. Methods: The poisson, negative binomial, zero-inflated poisson, zero-inflated negative binomial, poisson-logit hurdle and negative binomial-logit hurdle regressions were compared and used to examine the effects of the gender, parity and herd-year-season independent variables on stillbirth. Furthermore, the Log-Likelihood statistics, Akaike Information Criteria, Bayesian Information Criteria and rootogram graphs were used as comparison criteria for performance of the models. According to these criteria, Negative Binomial-Logit Hurdle Regression model was chosen as the best model. Result: The parameter estimates obtained by Negative Binomial-Logit Hurdle Regression model in relation to the effects of the gender, parity and herd-year-season independent variables on stillbirth were found to be significant (p<0.01). It was found that while stillbirth incidence was higher in males than females, it was found to decrease as the parity increased. As a result, the Negative Binomial Logit Hurdle model was found the best model for stillbirth count data with overdispersion. | en_US |
dc.description.sponsorship | TUBITAK (The Scientific and Technological Research Council of Turkey); Ege University Research Institute | en_US |
dc.description.sponsorship | The authors wish to thank Dr. Daniel Gianola, Dr. Kent Weigel and US National Association of Animal Breeders for providing data. TUBITAK (The Scientific and Technological Research Council of Turkey) and Ege University Research Institute are gratefully acknowledged for financial support. | en_US |
dc.description.woscitationindex | Science Citation Index Expanded | |
dc.identifier.doi | 10.18805/IJAR.BF-1415 | |
dc.identifier.endpage | 1163 | en_US |
dc.identifier.issn | 0367-6722 | |
dc.identifier.issue | 9 | en_US |
dc.identifier.scopus | 2-s2.0-85139308433 | |
dc.identifier.scopusquality | Q4 | |
dc.identifier.startpage | 1158 | en_US |
dc.identifier.uri | https://doi.org/10.18805/IJAR.BF-1415 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14720/7888 | |
dc.identifier.volume | 56 | en_US |
dc.identifier.wos | WOS:000901201600017 | |
dc.identifier.wosquality | Q4 | |
dc.language.iso | en | en_US |
dc.publisher | Agricultural Research Communication Centre | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Count Models | en_US |
dc.subject | Holstein | en_US |
dc.subject | Overdispersion | en_US |
dc.subject | Stillbirth | en_US |
dc.subject | Zero Inflation | en_US |
dc.title | Comparison of Different Count Models for Investigation of Some Environmental Factors Affecting Stillbirth in Holsteins | en_US |
dc.type | Article | en_US |