Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/7187 |
Resumo: | It was aimed to verify the influence of genetics between Nelore or ½ Angus-Nelore animals and the finishing phase systems, pasture with protein-energy supplementation or feedlot, on the contents of moisture, ashes, proteins, fat, iron, zinc, calcium, potassium, pH, color, fatty acids composition, vitamin E, lipid oxidation and cholesterol of the meat of these animals, after reaching 480 kg body weight. It was adopted the completely randomized design, in 2x2 factorial arrangement, with two breeds and two finishing systems. Meat from feedlot finished ½ Angus-Nelore animals obtained higher protein content (P <0.05) than feedlot Nelore animals. The ½ Angus-Nelore animals finished on pasture with supplementation obtained meat with higher content (P <0.05) of zinc and lower content of linoleic acid (C18:2 n-6) compared to meat of Nelore steers finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. For myristic acid, one of the fatty acids considered to be hypocholesterolemic, the treatment with meat of feedlot finished Nelore showed a higher value (P <0.05) when compared to Nelore finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. Meat of Nelore steers finished on pasture with supplementation obtained higher values (P<0.05) for stearic (C18:0), linolenic (C18:3n-3), DHA and total polyunsaturated fatty acids when compared to feedlot finished Nelore. Isolatedly, (P <0.05), the feedlot system generated higher contents of C18:1 trans-10 cis-12 fat. The pasture combined with supplementation system contributed to higher values of calcium, potassium, trans-vaccenic acid (C18:1 trans-11 cis-9) and vitamin E. For the Nelore breed, they were found higher contents of fat and vitamin E, while the ½ Angus-Nelore showed higher amount of potassium. The analysis of moisture, ash, iron, pH, color, cholesterol, palmitic acid (C16:0), total saturated fatty acids and oleic acid (C18:1n-9) were not significant. According to the obtained results, it was concluded that, under the conditions of the present study, Nelore animals finished on pasture with supplementation resulted in meat with a higher content of polyunsaturated, mainly omega-3, fatty acids, when compared to feedlot finished Nelore, while the ½-Angus-Nelore finished on pasteure with supplementation, lower omega-6 content, whose characteristic is very important with regard to n-6 / n-3 ratio; and the pasture finishing system contributed, isolatedly, to higher contents of calcium, potassium, vitamin E and trans-vaccenic acid, which is an intermediate of the ruminal biohydrogenation process, shown to be beneficial to health, while the feedlot system contributed to an increased deposition of intramuscular fat and higher content of the trans isomer, which is harmful to health. |
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Lage, Moacir Evandrohttp://lattes.cnpq.br/2053334263459111Restle, Joãohttp://lattes.cnpq.br/7559938697233077Lage, Moacir EvandroBueno, Cláudia PeixotoOliveira, Raphael Rocha deRezende, Cíntia S. Minafra eNicolau, Edmar Soareshttp://lattes.cnpq.br/6916815253982317Reis, Renata Cunha dos2017-04-19T15:32:16Z2017-03-06REIS, R. C. Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação. 2017. 96 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2017.http://repositorio.bc.ufg.br/tede/handle/tede/7187ark:/38995/0013000000j90It was aimed to verify the influence of genetics between Nelore or ½ Angus-Nelore animals and the finishing phase systems, pasture with protein-energy supplementation or feedlot, on the contents of moisture, ashes, proteins, fat, iron, zinc, calcium, potassium, pH, color, fatty acids composition, vitamin E, lipid oxidation and cholesterol of the meat of these animals, after reaching 480 kg body weight. It was adopted the completely randomized design, in 2x2 factorial arrangement, with two breeds and two finishing systems. Meat from feedlot finished ½ Angus-Nelore animals obtained higher protein content (P <0.05) than feedlot Nelore animals. The ½ Angus-Nelore animals finished on pasture with supplementation obtained meat with higher content (P <0.05) of zinc and lower content of linoleic acid (C18:2 n-6) compared to meat of Nelore steers finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. For myristic acid, one of the fatty acids considered to be hypocholesterolemic, the treatment with meat of feedlot finished Nelore showed a higher value (P <0.05) when compared to Nelore finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. Meat of Nelore steers finished on pasture with supplementation obtained higher values (P<0.05) for stearic (C18:0), linolenic (C18:3n-3), DHA and total polyunsaturated fatty acids when compared to feedlot finished Nelore. Isolatedly, (P <0.05), the feedlot system generated higher contents of C18:1 trans-10 cis-12 fat. The pasture combined with supplementation system contributed to higher values of calcium, potassium, trans-vaccenic acid (C18:1 trans-11 cis-9) and vitamin E. For the Nelore breed, they were found higher contents of fat and vitamin E, while the ½ Angus-Nelore showed higher amount of potassium. The analysis of moisture, ash, iron, pH, color, cholesterol, palmitic acid (C16:0), total saturated fatty acids and oleic acid (C18:1n-9) were not significant. According to the obtained results, it was concluded that, under the conditions of the present study, Nelore animals finished on pasture with supplementation resulted in meat with a higher content of polyunsaturated, mainly omega-3, fatty acids, when compared to feedlot finished Nelore, while the ½-Angus-Nelore finished on pasteure with supplementation, lower omega-6 content, whose characteristic is very important with regard to n-6 / n-3 ratio; and the pasture finishing system contributed, isolatedly, to higher contents of calcium, potassium, vitamin E and trans-vaccenic acid, which is an intermediate of the ruminal biohydrogenation process, shown to be beneficial to health, while the feedlot system contributed to an increased deposition of intramuscular fat and higher content of the trans isomer, which is harmful to health.O objetivo deste estudo foi verificar a influência da genética entre animais Nelore ou ½ Angus-Nelore e do tipo de terminação, a pasto com suplementação proteico-energética ou confinamento, sobre os conteúdos de umidade, cinzas, proteínas, gordura, ferro, zinco, cálcio, potássio, pH, cor, composição de ácidos graxos, vitamina E, oxidação lipídica e colesterol das carnes destes animais, após atingirem 480 kg. O delineamento experimental utilizado foi o inteiramente ao acaso com arranjo fatorial 2x2, sendo duas raças e dois tipos de terminação. A carne de animais ½ Angus-Nelore quando terminados em confinamento obtiveram maior teor de proteína (P<0,05) em relação a de Nelore quando receberam confinamento. Animais ½ Angus-Nelore a pasto com suplementação obtiveram carnes com maior teor (P<0,05) de zinco e menor teor de ácido linoleico (C18:2 n-6) em relação a carne de animais Nelore terminados a pasto com suplementação e aos ½ Angus-Nelore terminados em confinamento. Para o ácido mirístico, um dos ácidos graxos considerados hipocolesterolêmicos, o tratamento com carne de animais Nelore terminados em confinamento adquiriu maior valor (P<0,05) quando comparado com Nelore terminado a pasto com suplementação e também ao ½ Angus-Nelore em confinamento. A carne de animais Nelore terminados a pasto com suplementação obteve maiores valores (P<0,05) para os ácidos esteárico (C18:0), linolênico (C18:3n-3), DHA e para o total de ácidos graxos poli-insaturados em relação ao Nelore terminado em confinamento. De forma isolada (P<0,05), o sistema de confinamento gerou maiores teores de gordura e C18:1 trans-10 cis-12. O sistema à pasto com suplementação contribuiu para maiores valores de cálcio, potássio, ácido trans-vacênico (C18:1 trans11 cis-9) e vitamina E. Para a raça Nelore foram encontrados maiores teores de gordura e vitamina E enquanto para os ½ Angus-Nelore maior quantidade de potássio. As análises de umidade, cinzas, ferro, pH, cor, colesterol, ácido palmítico (C16:0), total de ácidos graxos saturados e ácido oleico (C18:1n-9) não foram significativas. Dos resultados obtidos conclui-se que, nas condições do presente trabalho, animais Nelore terminados a pasto com suplementação gerou carne com maior composição de ácidos graxos poliinsaturados, principalmente de ômega-3, enquanto os ½ Angus-Nelore terminados a pasto com suplementação menor teor de ômega-6, cuja característica é muito importante no que se refere a relação n-6/n-3 e a terminação a pasto de forma isolada contribuiu para maior teor de cálcio, potássio, vitamina E e ácido trans-vacênico, intermediário do processo de biohidrogenação ruminal apontado como benéfico à saúde, enquanto o sistema de confinamento contribuiu para uma maior deposição de gordura intramuscular e maior teor do isômero trans apontado como maléfico à saúde.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-19T15:32:03Z No. of bitstreams: 2 Tese - Renata Cunha dos Reis - 2017.pdf: 1668710 bytes, checksum: 8747c25747ed19ebf2fa1aba8886ebd8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-19T15:32:16Z (GMT) No. of bitstreams: 2 Tese - Renata Cunha dos Reis - 2017.pdf: 1668710 bytes, checksum: 8747c25747ed19ebf2fa1aba8886ebd8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2017-04-19T15:32:16Z (GMT). No. of bitstreams: 2 Tese - Renata Cunha dos Reis - 2017.pdf: 1668710 bytes, checksum: 8747c25747ed19ebf2fa1aba8886ebd8 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-03-06Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEGapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Ciência Animal (EVZ)UFGBrasilEscola de Veterinária e Zootecnia - EVZ (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessÁcidos graxos saturadosAntioxidantesGenética bovinaÔmega-3ProteínaTerminaçãoAntioxidantsBovine geneticsFinishing phaseOmega-3ProteinSaturated fatty acidsCIENCIAS AGRARIAS::MEDICINA VETERINARIAQualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementaçãoNutritional quality of meat of nelore and ½ angus-nelore steers finished in feedlot or on pasture with supplementationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis4581960685150189167600600600600-6217552114249094582453670264235017319-961409807440757778reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
dc.title.alternative.eng.fl_str_mv |
Nutritional quality of meat of nelore and ½ angus-nelore steers finished in feedlot or on pasture with supplementation |
title |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
spellingShingle |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação Reis, Renata Cunha dos Ácidos graxos saturados Antioxidantes Genética bovina Ômega-3 Proteína Terminação Antioxidants Bovine genetics Finishing phase Omega-3 Protein Saturated fatty acids CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
title_full |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
title_fullStr |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
title_full_unstemmed |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
title_sort |
Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação |
author |
Reis, Renata Cunha dos |
author_facet |
Reis, Renata Cunha dos |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Lage, Moacir Evandro |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2053334263459111 |
dc.contributor.advisor-co1.fl_str_mv |
Restle, João |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/7559938697233077 |
dc.contributor.referee1.fl_str_mv |
Lage, Moacir Evandro |
dc.contributor.referee2.fl_str_mv |
Bueno, Cláudia Peixoto |
dc.contributor.referee3.fl_str_mv |
Oliveira, Raphael Rocha de |
dc.contributor.referee4.fl_str_mv |
Rezende, Cíntia S. Minafra e |
dc.contributor.referee5.fl_str_mv |
Nicolau, Edmar Soares |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6916815253982317 |
dc.contributor.author.fl_str_mv |
Reis, Renata Cunha dos |
contributor_str_mv |
Lage, Moacir Evandro Restle, João Lage, Moacir Evandro Bueno, Cláudia Peixoto Oliveira, Raphael Rocha de Rezende, Cíntia S. Minafra e Nicolau, Edmar Soares |
dc.subject.por.fl_str_mv |
Ácidos graxos saturados Antioxidantes Genética bovina Ômega-3 Proteína Terminação |
topic |
Ácidos graxos saturados Antioxidantes Genética bovina Ômega-3 Proteína Terminação Antioxidants Bovine genetics Finishing phase Omega-3 Protein Saturated fatty acids CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.eng.fl_str_mv |
Antioxidants Bovine genetics Finishing phase Omega-3 Protein Saturated fatty acids |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
It was aimed to verify the influence of genetics between Nelore or ½ Angus-Nelore animals and the finishing phase systems, pasture with protein-energy supplementation or feedlot, on the contents of moisture, ashes, proteins, fat, iron, zinc, calcium, potassium, pH, color, fatty acids composition, vitamin E, lipid oxidation and cholesterol of the meat of these animals, after reaching 480 kg body weight. It was adopted the completely randomized design, in 2x2 factorial arrangement, with two breeds and two finishing systems. Meat from feedlot finished ½ Angus-Nelore animals obtained higher protein content (P <0.05) than feedlot Nelore animals. The ½ Angus-Nelore animals finished on pasture with supplementation obtained meat with higher content (P <0.05) of zinc and lower content of linoleic acid (C18:2 n-6) compared to meat of Nelore steers finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. For myristic acid, one of the fatty acids considered to be hypocholesterolemic, the treatment with meat of feedlot finished Nelore showed a higher value (P <0.05) when compared to Nelore finished on pasture with supplementation and feedlot finished ½ Angus-Nelore. Meat of Nelore steers finished on pasture with supplementation obtained higher values (P<0.05) for stearic (C18:0), linolenic (C18:3n-3), DHA and total polyunsaturated fatty acids when compared to feedlot finished Nelore. Isolatedly, (P <0.05), the feedlot system generated higher contents of C18:1 trans-10 cis-12 fat. The pasture combined with supplementation system contributed to higher values of calcium, potassium, trans-vaccenic acid (C18:1 trans-11 cis-9) and vitamin E. For the Nelore breed, they were found higher contents of fat and vitamin E, while the ½ Angus-Nelore showed higher amount of potassium. The analysis of moisture, ash, iron, pH, color, cholesterol, palmitic acid (C16:0), total saturated fatty acids and oleic acid (C18:1n-9) were not significant. According to the obtained results, it was concluded that, under the conditions of the present study, Nelore animals finished on pasture with supplementation resulted in meat with a higher content of polyunsaturated, mainly omega-3, fatty acids, when compared to feedlot finished Nelore, while the ½-Angus-Nelore finished on pasteure with supplementation, lower omega-6 content, whose characteristic is very important with regard to n-6 / n-3 ratio; and the pasture finishing system contributed, isolatedly, to higher contents of calcium, potassium, vitamin E and trans-vaccenic acid, which is an intermediate of the ruminal biohydrogenation process, shown to be beneficial to health, while the feedlot system contributed to an increased deposition of intramuscular fat and higher content of the trans isomer, which is harmful to health. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-04-19T15:32:16Z |
dc.date.issued.fl_str_mv |
2017-03-06 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
REIS, R. C. Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação. 2017. 96 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2017. |
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http://repositorio.bc.ufg.br/tede/handle/tede/7187 |
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ark:/38995/0013000000j90 |
identifier_str_mv |
REIS, R. C. Qualidade nutricional da carne de tourinhos nelore e ½ angus-nelore terminados em confinamento ou em pastagem com suplementação. 2017. 96 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2017. ark:/38995/0013000000j90 |
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http://repositorio.bc.ufg.br/tede/handle/tede/7187 |
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Universidade Federal de Goiás |
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UFG |
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Brasil |
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Escola de Veterinária e Zootecnia - EVZ (RG) |
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Universidade Federal de Goiás |
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