Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana

Detalhes bibliográficos
Autor(a) principal: Teixeira, Odilene de Souza
Data de Publicação: 2016
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
dARK ID: ark:/26339/0013000018ngv
Texto Completo: http://repositorio.ufsm.br/handle/1/10917
Resumo: This study aimed to evaluate performance, behavior as well as meat and carcass characteristics of beef cattle with different sexual conditions, finished at 18 months, raised on Aruana (Panicum maximum Jacq cv. Aruana) pasture, receiving energy supplementation. The treatments consisted of surgically castrated, immunocastrated or non-castrated animals. The experiment consisted of 39 contemporary male bovine animals with initial body weight of 284.1 ± 31.4 kg and average age of 14 months. Chemical composition analysis and patterns of pasture production did not differ among treatments. Average daily gain, final weight and live weight gain per hectare, were not influenced by the sexual condition. In assessing the agonistic behavior of the animals, non-castrated animals more often displayed aggressive activities such as threats and fights when compared to immunocastrated animals. Feeding behavior, grazing time, rumination and idleness were not affected by treatments. Non-castrated animals spent more time at the feeder (56.20 minutes) than either surgically castrated (41.43 minutes) or immunocastrated, (32.38 minutes).. As for carcass attributes, no difference was found for slaughter weight, hot and cold carcass weight and their respective yields. Regarding Muscle and fat yield per 100 kg of cold casting, non-castrated animals had higher muscle ratio (67.9%) vs. castrated calves (65.1%) or immunocastrated (64,1%) in detriment of the greater proportion of fat found in castrated animals. Regarding meat characteristics, meat from immunocastrated and surgically castrated animals demonstrated color with greater intensity of red and yellow hues. The characteristics evaluated by the taste panel did not differ for any of the evaluated sexual conditions and were classified as "slightly above average". The combination of the correct handling of Aruana grazing and the use of supplementation was promising for finishing cattle with different sexual conditions at 18 months of age, considering that there was no difference in average daily gain, final weight and gain liveweight per hectare. Castrates both surgically as immunocastrated obtained higher yield of fat in the carcass while uncastrated animals have higher muscle performance. In the flesh, there was difference in the color, and steers (surgically or immunocastrated) produced meat prone to lighter red color compared to uncastrated cattle. In choosing the method recommended castration this latter, to be a less invasive method for cattle, which determines greater preservation of animal welfare.
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spelling Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruanaTermination of pasture-fed beef cattle at 18 months with different sexual conditionsCastraçãoColoração da carneComportamento agonísticoGorduraNão castraçãoMúsculoCastrationFatMeat colorAgonistic behaviorNon-castrationMuscleCNPQ::CIENCIAS AGRARIAS::ZOOTECNIAThis study aimed to evaluate performance, behavior as well as meat and carcass characteristics of beef cattle with different sexual conditions, finished at 18 months, raised on Aruana (Panicum maximum Jacq cv. Aruana) pasture, receiving energy supplementation. The treatments consisted of surgically castrated, immunocastrated or non-castrated animals. The experiment consisted of 39 contemporary male bovine animals with initial body weight of 284.1 ± 31.4 kg and average age of 14 months. Chemical composition analysis and patterns of pasture production did not differ among treatments. Average daily gain, final weight and live weight gain per hectare, were not influenced by the sexual condition. In assessing the agonistic behavior of the animals, non-castrated animals more often displayed aggressive activities such as threats and fights when compared to immunocastrated animals. Feeding behavior, grazing time, rumination and idleness were not affected by treatments. Non-castrated animals spent more time at the feeder (56.20 minutes) than either surgically castrated (41.43 minutes) or immunocastrated, (32.38 minutes).. As for carcass attributes, no difference was found for slaughter weight, hot and cold carcass weight and their respective yields. Regarding Muscle and fat yield per 100 kg of cold casting, non-castrated animals had higher muscle ratio (67.9%) vs. castrated calves (65.1%) or immunocastrated (64,1%) in detriment of the greater proportion of fat found in castrated animals. Regarding meat characteristics, meat from immunocastrated and surgically castrated animals demonstrated color with greater intensity of red and yellow hues. The characteristics evaluated by the taste panel did not differ for any of the evaluated sexual conditions and were classified as "slightly above average". The combination of the correct handling of Aruana grazing and the use of supplementation was promising for finishing cattle with different sexual conditions at 18 months of age, considering that there was no difference in average daily gain, final weight and gain liveweight per hectare. Castrates both surgically as immunocastrated obtained higher yield of fat in the carcass while uncastrated animals have higher muscle performance. In the flesh, there was difference in the color, and steers (surgically or immunocastrated) produced meat prone to lighter red color compared to uncastrated cattle. In choosing the method recommended castration this latter, to be a less invasive method for cattle, which determines greater preservation of animal welfare.Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorObjetivou-se, mensurar o desempenho, o comportamento e as características de carcaça e carne de bovinos de corte com diferentes condições sexuais, terminados aos 18 meses em pastagem de Aruana, recebendo suplementação energética. Os tratamentos consistiram em novilhos castrados cirurgicamente, imunocastrados ou não castrados. Foram utilizados, para o experimento, 39 bovinos machos, contemporâneos, com peso corporal e idade inicial média de 284,1 ± 31,4 kg e 14 meses, respectivamente. Os resultados referentes à análise da composição bromatológica e os parâmetros produtivos da pastagem não diferiram para os tratamentos. As variáveis, ganho médio diário, peso final e ganho de peso vivo por hectare, não sofreram influência da condição sexual. Ao avaliar o comportamento agonístico dos novilhos verifica-se que os não castrados apresentaram maior número de atividades como ameaças e brigas em relação aos imunocastrados. No comportamento ingestivo, os tempos de pastejo, ócio e ruminação não foram influenciados pelos tratamentos. O tempo de permanência no comedouro dos animais não castrados, 56,20 minutos, foi superior ao detectado para castrados cirurgicamente ou imunocastrados, 41,43 e 32,38 minutos. Nos atributos de carcaça, não foi encontrada diferença para peso de abate, peso de carcaça quente e fria, bem como para seus respectivos rendimentos. No que se refere aos rendimentos de músculo e gordura por 100 kg de carcaça fria, os novilhos não castrados obtiveram maior proporção de músculo (67,9%) ao comparar com novilhos castrados cirurgicamente (65,1%) ou imunocastrados (64,1%), em detrimento da maior proporção de gordura dos animais castrados. Para as características de carne, os novilhos castrados cirurgicamente e imunocastrados dispuseram de carnes com maior intensidade de vermelho e amarelo. As características avaliadas pelo painel de degustadores não diferiram para nenhuma das condições sexuais trabalhadas neste ensaio, sendo classificadas como levemente acima da média . A combinação entre o correto manejo da pastagem de Aruana e o uso de suplementação se mostrou promissora para a terminação de bovinos com diferentes condições sexuais aos 18 meses de idade, considerando-se que não houve diferença para ganho médio diário, peso final e ganho de peso vivo por hectare. Animais castrados tanto cirurgicamente quanto imunocastrados obtiveram maior rendimento de gordura na carcaça, enquanto, animais não castrados apresentam maior rendimento de músculo. Na carne, observou-se diferença para a cor, sendo que novilhos castrados (cirurgicamente ou imunocastrados) produziram carne com tendência a coloração vermelho mais claro, comparado aos bovinos não castrados. Na escolha do método de castração se recomenda essa última, por ser um método menos invasivo para o bovino, o que determina maior preservação do bem- estar animal.Universidade Federal de Santa MariaBRZootecniaUFSMPrograma de Pós-Graduação em ZootecniaBrondani, Ivan Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0Alves Filho, Dari Celestinohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5Souza, Alexandre Nunes Motta dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4764557J9Teixeira, Odilene de Souza2016-08-302016-08-302016-02-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfTEIXEIRA, Odilene de Souza. TERMINATION OF PASTURE-FED BEEF CATTLE AT 18 MONTHS WITH DIFFERENT SEXUAL CONDITIONS. 2016. 91 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2016.http://repositorio.ufsm.br/handle/1/10917ark:/26339/0013000018ngvporinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2020-11-27T11:46:26Zoai:repositorio.ufsm.br:1/10917Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2020-11-27T11:46:26Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
Termination of pasture-fed beef cattle at 18 months with different sexual conditions
title Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
spellingShingle Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
Teixeira, Odilene de Souza
Castração
Coloração da carne
Comportamento agonístico
Gordura
Não castração
Músculo
Castration
Fat
Meat color
Agonistic behavior
Non-castration
Muscle
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
title_short Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
title_full Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
title_fullStr Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
title_full_unstemmed Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
title_sort Terminação de bovinos aos 18 meses com diferentes condições sexuais suplementados em pastagem de aruana
author Teixeira, Odilene de Souza
author_facet Teixeira, Odilene de Souza
author_role author
dc.contributor.none.fl_str_mv Brondani, Ivan Luiz
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0
Alves Filho, Dari Celestino
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5
Souza, Alexandre Nunes Motta de
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4764557J9
dc.contributor.author.fl_str_mv Teixeira, Odilene de Souza
dc.subject.por.fl_str_mv Castração
Coloração da carne
Comportamento agonístico
Gordura
Não castração
Músculo
Castration
Fat
Meat color
Agonistic behavior
Non-castration
Muscle
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
topic Castração
Coloração da carne
Comportamento agonístico
Gordura
Não castração
Músculo
Castration
Fat
Meat color
Agonistic behavior
Non-castration
Muscle
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
description This study aimed to evaluate performance, behavior as well as meat and carcass characteristics of beef cattle with different sexual conditions, finished at 18 months, raised on Aruana (Panicum maximum Jacq cv. Aruana) pasture, receiving energy supplementation. The treatments consisted of surgically castrated, immunocastrated or non-castrated animals. The experiment consisted of 39 contemporary male bovine animals with initial body weight of 284.1 ± 31.4 kg and average age of 14 months. Chemical composition analysis and patterns of pasture production did not differ among treatments. Average daily gain, final weight and live weight gain per hectare, were not influenced by the sexual condition. In assessing the agonistic behavior of the animals, non-castrated animals more often displayed aggressive activities such as threats and fights when compared to immunocastrated animals. Feeding behavior, grazing time, rumination and idleness were not affected by treatments. Non-castrated animals spent more time at the feeder (56.20 minutes) than either surgically castrated (41.43 minutes) or immunocastrated, (32.38 minutes).. As for carcass attributes, no difference was found for slaughter weight, hot and cold carcass weight and their respective yields. Regarding Muscle and fat yield per 100 kg of cold casting, non-castrated animals had higher muscle ratio (67.9%) vs. castrated calves (65.1%) or immunocastrated (64,1%) in detriment of the greater proportion of fat found in castrated animals. Regarding meat characteristics, meat from immunocastrated and surgically castrated animals demonstrated color with greater intensity of red and yellow hues. The characteristics evaluated by the taste panel did not differ for any of the evaluated sexual conditions and were classified as "slightly above average". The combination of the correct handling of Aruana grazing and the use of supplementation was promising for finishing cattle with different sexual conditions at 18 months of age, considering that there was no difference in average daily gain, final weight and gain liveweight per hectare. Castrates both surgically as immunocastrated obtained higher yield of fat in the carcass while uncastrated animals have higher muscle performance. In the flesh, there was difference in the color, and steers (surgically or immunocastrated) produced meat prone to lighter red color compared to uncastrated cattle. In choosing the method recommended castration this latter, to be a less invasive method for cattle, which determines greater preservation of animal welfare.
publishDate 2016
dc.date.none.fl_str_mv 2016-08-30
2016-08-30
2016-02-22
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, Odilene de Souza. TERMINATION OF PASTURE-FED BEEF CATTLE AT 18 MONTHS WITH DIFFERENT SEXUAL CONDITIONS. 2016. 91 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2016.
http://repositorio.ufsm.br/handle/1/10917
dc.identifier.dark.fl_str_mv ark:/26339/0013000018ngv
identifier_str_mv TEIXEIRA, Odilene de Souza. TERMINATION OF PASTURE-FED BEEF CATTLE AT 18 MONTHS WITH DIFFERENT SEXUAL CONDITIONS. 2016. 91 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2016.
ark:/26339/0013000018ngv
url http://repositorio.ufsm.br/handle/1/10917
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
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Zootecnia
UFSM
Programa de Pós-Graduação em Zootecnia
publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Zootecnia
UFSM
Programa de Pós-Graduação em Zootecnia
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da UFSM
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Manancial - Repositório Digital da UFSM
collection Manancial - Repositório Digital da UFSM
repository.name.fl_str_mv Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv atendimento.sib@ufsm.br||tedebc@gmail.com
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