Consanguinidad en toros Nelore comercializados por catálogo en Ecuador
The objective was to evaluate the inbreeding and relationship coefficients in Nelore bulls marketed by catalog in Ecuador between 2017 and 2022. A total of 39 bulls were analyzed, supplemented with 1868 data points from their offspring. Using the software PedigreeViewer and Endogv4.8, the pedigree o...
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| Format: | bachelorThesis |
| Jezik: | spa |
| Izdano: |
2024
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| Online pristup: | http://repositorio.espam.edu.ec/handle/42000/2464 |
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Dodaj oznaku | _version_ | 1856532496842227712 |
|---|---|
| author | García Valuarte, Damián Andrés |
| author2 | Santana Bravo, Joel Damián |
| author2_role | author |
| author_facet | García Valuarte, Damián Andrés Santana Bravo, Joel Damián |
| author_role | author |
| collection | Repositorio Escuela Superior Politécnica Agropecuaria de Manabí |
| dc.contributor.none.fl_str_mv | Larrea Izurieta, Carlos Octavio |
| dc.creator.none.fl_str_mv | García Valuarte, Damián Andrés Santana Bravo, Joel Damián |
| dc.date.none.fl_str_mv | 2024-07-16T20:50:49Z 2024-07-16T20:50:49Z 2024-07 |
| dc.format.none.fl_str_mv | 48 p. application/pdf |
| dc.identifier.none.fl_str_mv | http://repositorio.espam.edu.ec/handle/42000/2464 |
| dc.language.none.fl_str_mv | spa |
| dc.publisher.none.fl_str_mv | Calceta: ESPAM MFL |
| dc.rights.none.fl_str_mv | Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositorio Escuela Superior Politécnica Agropecuaria de Manabí instname:Escuela Superior Politécnica Agropecuaria de Manabí instacron:ESPAM |
| dc.subject.none.fl_str_mv | Endogamia Parentesco Valor genético Tendencia genética |
| dc.title.none.fl_str_mv | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/bachelorThesis |
| description | The objective was to evaluate the inbreeding and relationship coefficients in Nelore bulls marketed by catalog in Ecuador between 2017 and 2022. A total of 39 bulls were analyzed, supplemented with 1868 data points from their offspring. Using the software PedigreeViewer and Endogv4.8, the pedigree of the animals under study was constructed, and a linear regression analysis was performed using InfoStat software to evaluate the trend of breeding values based on the level of inbreeding. The average inbreeding coefficient of the animals under study was 2.03% (±2.14), and the average relationship coefficient was 1.35% (±0.18), with an annual inbreeding increase of 0.015%. Positive relationships were observed in age at first calving (0.27 days), scrotal circumference at 450 days (0.07 cm), and carcass finish (0.84). Additionally, negative relationships were observed in birth weight (-0.032 kg), weaning weight (-0.13 kg), yearling weight (-0.45 kg), post-yearling weight (-0.64 kg), maternal stage weight (-0.11 kg), total maternal weaning weight (-0.24 kg), marbling (-0.03), scrotal circumference at 365 days (-0.23), precocity (-0.007), ribeye area (-0.50), body structure (-0.19), musculature (-0.03), and longevity (-1.29). The need to improve mating plans is highlighted as inbreeding affects animal performance. |
| eu_rights_str_mv | openAccess |
| format | bachelorThesis |
| id | ESPAM_459cbc4b0952278b137df345c1faf5e9 |
| instacron_str | ESPAM |
| institution | ESPAM |
| instname_str | Escuela Superior Politécnica Agropecuaria de Manabí |
| language | spa |
| network_acronym_str | ESPAM |
| network_name_str | Repositorio Escuela Superior Politécnica Agropecuaria de Manabí |
| oai_identifier_str | oai:null:42000/2464 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | Calceta: ESPAM MFL |
| reponame_str | Repositorio Escuela Superior Politécnica Agropecuaria de Manabí |
| repository.mail.fl_str_mv | . |
| repository.name.fl_str_mv | Repositorio Escuela Superior Politécnica Agropecuaria de Manabí - Escuela Superior Politécnica Agropecuaria de Manabí |
| repository_id_str | 0 |
| rights_invalid_str_mv | Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ |
| spelling | Consanguinidad en toros Nelore comercializados por catálogo en EcuadorGarcía Valuarte, Damián AndrésSantana Bravo, Joel DamiánEndogamiaParentescoValor genéticoTendencia genéticaThe objective was to evaluate the inbreeding and relationship coefficients in Nelore bulls marketed by catalog in Ecuador between 2017 and 2022. A total of 39 bulls were analyzed, supplemented with 1868 data points from their offspring. Using the software PedigreeViewer and Endogv4.8, the pedigree of the animals under study was constructed, and a linear regression analysis was performed using InfoStat software to evaluate the trend of breeding values based on the level of inbreeding. The average inbreeding coefficient of the animals under study was 2.03% (±2.14), and the average relationship coefficient was 1.35% (±0.18), with an annual inbreeding increase of 0.015%. Positive relationships were observed in age at first calving (0.27 days), scrotal circumference at 450 days (0.07 cm), and carcass finish (0.84). Additionally, negative relationships were observed in birth weight (-0.032 kg), weaning weight (-0.13 kg), yearling weight (-0.45 kg), post-yearling weight (-0.64 kg), maternal stage weight (-0.11 kg), total maternal weaning weight (-0.24 kg), marbling (-0.03), scrotal circumference at 365 days (-0.23), precocity (-0.007), ribeye area (-0.50), body structure (-0.19), musculature (-0.03), and longevity (-1.29). The need to improve mating plans is highlighted as inbreeding affects animal performance.El objetivo fue evaluar el coeficiente de consanguinidad y parentesco en toros de la raza Nelore comercializados por catálogo en Ecuador entre el 2017 y el 2022. Se analizaron 39 toros y se completó con 1868 datos de su descendencia. Utilizando los softwares PedigreeViewer y Endogv4.8 se construyó el árbol genealógico de los animales en estudio y se realizó el análisis de regresión lineal en el software InfoStat para evaluar la tendencia de los valores de cría en función del nivel de consanguinidad. El coeficiente de consanguinidad promedio de los animales en estudio fue de 2.03% (±2.14) y el parentesco promedio fue de 1.35% (±0.18) con incremento de consanguinidad anual de 0.015%. Se observaron relaciones positivas en edad al primer parto (0.27 días), circunferencia escrotal a los 450 días (0.07 cm) y acabado a la canal (0.84). Además, se observó relaciones negativas en peso al nacimiento (-0.032 Kg), peso al destete (-0.13 Kg), peso al año (-0.45 Kg), peso al sobreaño (-0.64 Kg), peso en etapa materna (-0.11 Kg), Peso materno total al destete (-0.24 Kg), marmoleo (-0, 03), circunferencia escrotal a los 365 días (-0,23), precocidad (-0,007), zona de chuletón (-0,50), estructura corporal (-0,19), musculatura (-0,03), longevidad (-1,29). Se destaca la necesidad de mejorar los planes de apareamiento ya que la endogamia afecta al rendimiento de los animales.Calceta: ESPAM MFLLarrea Izurieta, Carlos Octavio2024-07-16T20:50:49Z2024-07-16T20:50:49Z2024-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesis48 p.application/pdfhttp://repositorio.espam.edu.ec/handle/42000/2464spaAtribución-NoComercial-SinDerivadas 3.0 Ecuadorhttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/info:eu-repo/semantics/openAccessreponame:Repositorio Escuela Superior Politécnica Agropecuaria de Manabíinstname:Escuela Superior Politécnica Agropecuaria de Manabíinstacron:ESPAM2025-12-30T06:39:15Zoai:null:42000/2464Institucionalhttps://repositorio.espam.edu.ec/Universidad públicahttp://www.espam.edu.ec/https://repositorio.espam.edu.ec/oai.Ecuador...opendoar:02025-12-30T06:39:15Repositorio Escuela Superior Politécnica Agropecuaria de Manabí - Escuela Superior Politécnica Agropecuaria de Manabífalse |
| spellingShingle | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador García Valuarte, Damián Andrés Endogamia Parentesco Valor genético Tendencia genética |
| status_str | publishedVersion |
| title | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| title_full | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| title_fullStr | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| title_full_unstemmed | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| title_short | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| title_sort | Consanguinidad en toros Nelore comercializados por catálogo en Ecuador |
| topic | Endogamia Parentesco Valor genético Tendencia genética |
| url | http://repositorio.espam.edu.ec/handle/42000/2464 |