Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares

Detalhes bibliográficos
Autor(a) principal: Teixeira, Glaciane Lopes
Data de Publicação: 2020
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/41941
Resumo: The Campolina horse breed has curvilinear features and a well-articulated muscular bone structure, standing out in sports environments such as enduro, traction and leisure. The study of animal growth curves based on non-linear models has often been used as a method for analyzing the development of several species, however, there are no reports of a study on modeling the growth curve in this breed. In this work, the objective was to evaluate the fit of the Logistical, Gompertz, von Bertalanffy and Brody models for the withers height and live weight variables for males and females in data obtained by the transversal method. Higher order derivatives of these growth models were also studied, aiming to identify relevant points of the growth curve such as MAP, IP, MDP and ADP. The experimental data were obtained from an agricultural exhibition in Belo Horizonte / MG, in 2012. A total of 356 animals were measured, 114 males and 242 females of the Campolina breed, which were divided into 16 age classes (7 to 203 months) and sex. The models were compared according to the following criteria for quality of fit: R2, AICC and MAPE. All adjustments, intervals and graphs made were analyzed by the statistical software R. The transversal method of obtaining data can be applied in the study of growth curves, in live weight and withers height for the Campolina breed. The Gompertz model was chosen as the best representative for the animal growth curve in both sexes, as it presents better quality evaluators and captures more influential points from its 1st to 4th order derivatives. The adult withers height value was estimated to be around 160 cm in both sexes and for the variable live weight, 530 kg for females and 494 kg for males. The maturity index of males was higher than that of females, suggesting that the growth of males is more accelerated for withers height. Development in height is more accelerated than in weight, with some important points of growth still occurring in the prenatal phase.
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spelling Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não linearesEvaluation of growth curves of Campolina races using nonlinear modelsAltura de cernelhaDerivadas de modelos não linearesMétodo transversalPeso vivoPontos influentesCross-sectional methodInfluential pointsLive weightNonlinear models derivativeWithers heightEstatísticaThe Campolina horse breed has curvilinear features and a well-articulated muscular bone structure, standing out in sports environments such as enduro, traction and leisure. The study of animal growth curves based on non-linear models has often been used as a method for analyzing the development of several species, however, there are no reports of a study on modeling the growth curve in this breed. In this work, the objective was to evaluate the fit of the Logistical, Gompertz, von Bertalanffy and Brody models for the withers height and live weight variables for males and females in data obtained by the transversal method. Higher order derivatives of these growth models were also studied, aiming to identify relevant points of the growth curve such as MAP, IP, MDP and ADP. The experimental data were obtained from an agricultural exhibition in Belo Horizonte / MG, in 2012. A total of 356 animals were measured, 114 males and 242 females of the Campolina breed, which were divided into 16 age classes (7 to 203 months) and sex. The models were compared according to the following criteria for quality of fit: R2, AICC and MAPE. All adjustments, intervals and graphs made were analyzed by the statistical software R. The transversal method of obtaining data can be applied in the study of growth curves, in live weight and withers height for the Campolina breed. The Gompertz model was chosen as the best representative for the animal growth curve in both sexes, as it presents better quality evaluators and captures more influential points from its 1st to 4th order derivatives. The adult withers height value was estimated to be around 160 cm in both sexes and for the variable live weight, 530 kg for females and 494 kg for males. The maturity index of males was higher than that of females, suggesting that the growth of males is more accelerated for withers height. Development in height is more accelerated than in weight, with some important points of growth still occurring in the prenatal phase.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)A raça equina Campolina possui traços curvilíneos e uma estrutura óssea muscular bem articulada, se destacando em ambientes esportivos como enduro, tração e lazer. O estudo de curvas de crescimento animal baseados em modelos não lineares tem sido frequentemente utilizado como método para análise do desenvolvimento de diversas espécies, no entanto, não há relatos de estudo sobre modelagem da curva de crescimento nesta raça. Neste trabalho, objetivou-se avaliar o ajuste dos modelos Logístico, Gompertz, von Bertalanffy e Brody para as variáveis altura de cernelha e peso vivo para machos e fêmeas em dados obtidos pelo método transversal. Foram estudadas também as derivadas de ordem superior destes modelos de crescimento almejando identificar pontos relevantes da curva de crescimento como PAM, PI, PDM e PDA. Os dados experimentais foram obtidos de uma exposição agropecuária em Belo Horizonte/ MG, no ano de 2012. Foram mensurados 356 animais no total, sendo 114 machos e 242 fêmeas da raça Campolina, os quais foram divididos em 16 classes de idade (7 a 203 meses) e sexo. Os modelos foram comparados pelos seguintes critérios quanto à qualidade de ajuste: R2, AICC e MAPE. Todos os ajustes, intervalos e gráficos feitos foram analisados pelo software estatístico R. O método transversal de obtenção de dados pode ser aplicado no estudo de curvas de crescimento, em peso vivo e altura de cernelha para a raça Campolina. O modelo Gompertz foi escolhido como a melhor representante para a curva de crescimento animal em ambos os sexos, por apresentar melhores avaliadores de qualidade e captação de mais pontos influentes de suas derivadas de 1a a 4a ordem. O valor da altura de cernelha adulta foi estimada em torno de 160 cm em ambos os sexos e para a variável peso vivo, 530 kg para fêmeas e 494 kg para machos. O índice de maturidade dos machos foi maior que o das fêmeas, sugerindo que o crescimento de machos é mais acelerado para altura de cernelha. O desenvolvimento em altura é mais acelerado do que em peso sendo que alguns pontos importantes do crescimento ocorrem ainda na fase pré-natal.Universidade Federal de LavrasPrograma de Pós-Graduação em Estatística e Experimentação AgropecuáriaUFLAbrasilDepartamento de Ciências ExatasFernandes, Tales JesusMoura, Raquel Silva deMuniz, Joel AugustoMelo, Raquel Moreira Pires dos SantosTeixeira, Glaciane Lopes2020-07-15T12:16:09Z2020-07-15T12:16:09Z2020-07-152020-02-27info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfTEIXEIRA, G. L. Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares. 2020. 84 p. Dissertação (Mestrado em Estatística e Experimentação Agropecuária) – Universidade Federal de Lavras, Lavras, 2020.http://repositorio.ufla.br/jspui/handle/1/41941porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2020-07-15T12:16:10Zoai:localhost:1/41941Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-07-15T12:16:10Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
Evaluation of growth curves of Campolina races using nonlinear models
title Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
spellingShingle Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
Teixeira, Glaciane Lopes
Altura de cernelha
Derivadas de modelos não lineares
Método transversal
Peso vivo
Pontos influentes
Cross-sectional method
Influential points
Live weight
Nonlinear models derivative
Withers height
Estatística
title_short Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
title_full Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
title_fullStr Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
title_full_unstemmed Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
title_sort Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares
author Teixeira, Glaciane Lopes
author_facet Teixeira, Glaciane Lopes
author_role author
dc.contributor.none.fl_str_mv Fernandes, Tales Jesus
Moura, Raquel Silva de
Muniz, Joel Augusto
Melo, Raquel Moreira Pires dos Santos
dc.contributor.author.fl_str_mv Teixeira, Glaciane Lopes
dc.subject.por.fl_str_mv Altura de cernelha
Derivadas de modelos não lineares
Método transversal
Peso vivo
Pontos influentes
Cross-sectional method
Influential points
Live weight
Nonlinear models derivative
Withers height
Estatística
topic Altura de cernelha
Derivadas de modelos não lineares
Método transversal
Peso vivo
Pontos influentes
Cross-sectional method
Influential points
Live weight
Nonlinear models derivative
Withers height
Estatística
description The Campolina horse breed has curvilinear features and a well-articulated muscular bone structure, standing out in sports environments such as enduro, traction and leisure. The study of animal growth curves based on non-linear models has often been used as a method for analyzing the development of several species, however, there are no reports of a study on modeling the growth curve in this breed. In this work, the objective was to evaluate the fit of the Logistical, Gompertz, von Bertalanffy and Brody models for the withers height and live weight variables for males and females in data obtained by the transversal method. Higher order derivatives of these growth models were also studied, aiming to identify relevant points of the growth curve such as MAP, IP, MDP and ADP. The experimental data were obtained from an agricultural exhibition in Belo Horizonte / MG, in 2012. A total of 356 animals were measured, 114 males and 242 females of the Campolina breed, which were divided into 16 age classes (7 to 203 months) and sex. The models were compared according to the following criteria for quality of fit: R2, AICC and MAPE. All adjustments, intervals and graphs made were analyzed by the statistical software R. The transversal method of obtaining data can be applied in the study of growth curves, in live weight and withers height for the Campolina breed. The Gompertz model was chosen as the best representative for the animal growth curve in both sexes, as it presents better quality evaluators and captures more influential points from its 1st to 4th order derivatives. The adult withers height value was estimated to be around 160 cm in both sexes and for the variable live weight, 530 kg for females and 494 kg for males. The maturity index of males was higher than that of females, suggesting that the growth of males is more accelerated for withers height. Development in height is more accelerated than in weight, with some important points of growth still occurring in the prenatal phase.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-15T12:16:09Z
2020-07-15T12:16:09Z
2020-07-15
2020-02-27
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv TEIXEIRA, G. L. Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares. 2020. 84 p. Dissertação (Mestrado em Estatística e Experimentação Agropecuária) – Universidade Federal de Lavras, Lavras, 2020.
http://repositorio.ufla.br/jspui/handle/1/41941
identifier_str_mv TEIXEIRA, G. L. Avaliação das curvas de crescimento de equinos da raça Campolina utilizando modelos não lineares. 2020. 84 p. Dissertação (Mestrado em Estatística e Experimentação Agropecuária) – Universidade Federal de Lavras, Lavras, 2020.
url http://repositorio.ufla.br/jspui/handle/1/41941
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras
Programa de Pós-Graduação em Estatística e Experimentação Agropecuária
UFLA
brasil
Departamento de Ciências Exatas
publisher.none.fl_str_mv Universidade Federal de Lavras
Programa de Pós-Graduação em Estatística e Experimentação Agropecuária
UFLA
brasil
Departamento de Ciências Exatas
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815438975098159104

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