IDADE, PESO, MORFOMETRIA CORPORAL E PRENHEZ EM NOVILHAS NELORE DOS 16 AOS 32 MESES

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dc.contributor.advisor-co1FIORAVANTI, Maria Clorinda Soares
dc.contributor.advisor-co1Latteshttp://lattes.cnpq.br/8772502020076257por
dc.contributor.advisor1SERENO, José Robson Bezerra
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0848686465662209por
dc.creatorAbud, Lucas Jacomini
dc.creator.Latteshttp://lattes.cnpq.br/1051306458178928por
dc.date.accessioned2014-07-29T15:07:56Z
dc.date.available2010-08-09
dc.date.issued2010-02-22
dc.description.abstractThe objective of this study was to characterize the age, weight and body morphometric measurements of Nellore heifers reared in Cerrado biome. Fifty-six heifers were experimentally exposed with bulls for determining the onset of their reproductive life. Body weight, condition and measurements of the heifers were evaluated every 60 days between 16 and 32 months of age. The following body measurements were registered: withers height, rump height, body length, head length, rump length, ear length, distance between ribs, distance from dorsal spine to belly, distance from ground to belly, head width, rump width, width between ischiums, ear width, cannon bone perimeter, tail implantation perimeter and thoracic perimeter. The average age at the onset of their reproductive life and the mean body weight were 28,74±2,81 months and 333,83±39,13 kg, respectively. Significant difference were observed for the following measurements: withers height, rump height, body length, rump length, head width, rump width, width between ischiums, tail implantation perimeter, thoracic perimeter and body condition score. Higher morphometric measurement values were observed in pregnant animals. The age in which the animals achieved the onset of their reproductive life in this study was similar to the ones described for Zebu females in the literature. In this case, more studies on genetic improvement and management alternatives are needed to anticipate the onset of the heifers´ reproductive life. The body morphometric mensuraments were higher in the pregnant heifers, indicating that the morphometric records can be an important tool to identify precocious Nellore females. The objective of this study was to characterize the age, weight and body morphometric measurements of Nellore heifers reared in Cerrado biome. Fifty-six heifers were experimentally exposed with bulls for determining the onset of their reproductive life. Body weight, condition and measurements of the heifers were evaluated every 60 days between 16 and 32 months of age. The following body measurements were registered: withers height, rump height, body length, head length, rump length, ear length, distance between ribs, distance from dorsal spine to belly, distance from ground to belly, head width, rump width, width between ischiums, ear width, cannon bone perimeter, tail implantation perimeter and thoracic perimeter. The average age at the onset of their reproductive life and the mean body weight were 28,74±2,81 months and 333,83±39,13 kg, respectively. Significant difference were observed for the following measurements: withers height, rump height, body length, rump length, head width, rump width, width between ischiums, tail implantation perimeter, thoracic perimeter and body condition score. Higher morphometric measurement values were observed in pregnant animals. The age in which the animals achieved the onset of their reproductive life in this study was similar to the ones described for Zebu females in the literature. In this case, more studies on genetic improvement and management alternatives are needed to anticipate the onset of the heifers´ reproductive life. The body morphometric mensuraments were higher in the pregnant heifers, indicating that the morphometric records can be an important tool to identify precocious Nellore females.eng
dc.description.provenanceMade available in DSpace on 2014-07-29T15:07:56Z (GMT). No. of bitstreams: 1 Lucas Jacomini.pdf: 1839805 bytes, checksum: 1969be815165b4eb0a4afeeae7f84141 (MD5) Previous issue date: 2010-02-22eng
dc.description.resumoEste trabalho teve como objetivo caracterizar o peso, as medidas morfométricas do corpo e prenhez em novilhas Nelore dos 16 aos 32 meses criadas no bioma Cerrado. Foram utilizadas 56 novilhas da raça Nelore, expostas com touros para a determinação da idade a primeira prenhez. As novilhas foram avaliadas quanto ao peso, condição corporal e morfometria corporal a cada dois meses dos 16 aos 32 meses de idade. Tomaram-se as seguintes medidas corporais: altura da cernelha, altura do posterior, comprimento do corpo, comprimento da cabeça, comprimento da garupa, comprimento da orelha, distância entre costelas, distância dorso ventre, distância ventre solo, largura da cabeça, largura da garupa, largura entre ísquios, largura da orelha, perímetro da canela, perímetro da rabada, perímetro torácico. Os resultados evidenciaram idade aproximada a primeira prenhez de 28,74±2,81 meses com peso médio de 333,83±39,13 kg. Com relação às medidas morfométricas observaram-se diferenças significativas na altura da cernelha, altura do posterior, comprimento do corpo, comprimento da garupa, largura da cabeça, largura da garupa, largura entre ísquios, perímetro da rabada e perímetro torácico, sendo estas maiores nos animais gestantes. Concluiu-se que a idade a primeira gestação das novilhas Nelore observada neste experimento encontra-se próxima ao descrito na literatura para fêmeas zebuínas. Este fato indica haver a necessidade de maiores estudos, relacionados ao melhoramento genético e/ou alternativas de manejo, a fim de antecipar o início da vida reprodutiva. As medidas morfométricas foram maiores nas novilhas gestantes, sugerindo que esta abordagem de mensuração corporal pode ser uma ferramenta auxiliar na identificação de animais precoces.por
dc.formatapplication/pdfpor
dc.identifier.citationABUD, Lucas Jacomini. Age, weight, body morphology and pregnancy in heifers from 16 to 32 months of age. 2010. 54 f. Dissertação (Mestrado em Ciências Agrárias - Veterinaria) - Universidade Federal de Goiás, Goiânia, 2010.por
dc.identifier.urihttp://repositorio.bc.ufg.br/tede/handle/tde/948
dc.languageporpor
dc.publisherUniversidade Federal de Goiáspor
dc.publisher.countryBRpor
dc.publisher.departmentCiências Agrárias - Veterinariapor
dc.publisher.initialsUFGpor
dc.publisher.programMestrado em Ciência Animalpor
dc.rightsAcesso Abertopor
dc.subject1. Bovino de corte - gravidez - pesos e medidaspor
dc.subject2. Bovinos de corte - pesos e medidaspor
dc.subject3. Bovino de corte - melhoramento genético - gravidez - pesos e medidaspor
dc.subject1. Bovino de cortepor
dc.subject2. Bos indicuspor
dc.subject3. Medidas morfométricaspor
dc.subject4. Nelore Mochopor
dc.subject5. Precocidade sexualpor
dc.subject1. Beef cattleeng
dc.subject2. Bos indicuseng
dc.subject3. Morphometric measureseng
dc.subject4. Nelore Mochoeng
dc.subject5. Sexual precocityeng
dc.subject.cnpqCNPQ::OUTROS::CIENCIASpor
dc.thumbnail.urlhttp://repositorio.bc.ufg.br/TEDE/retrieve/2965/Lucas%20Jacomini.pdf.jpg*
dc.titleIDADE, PESO, MORFOMETRIA CORPORAL E PRENHEZ EM NOVILHAS NELORE DOS 16 AOS 32 MESESpor
dc.title.alternativeAge, weight, body morphology and pregnancy in heifers from 16 to 32 months of ageeng
dc.typeDissertaçãopor

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