Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/45528 |
Resumo: | It was evaluated the effect of diets supplemented or not supplemented with ractopamine and digestible lysine on the performance and carcass characteristics of finishing pigs. A total of 50 barrows and 50 gilts (90.2 kg ± 3.5 kg) were used. In the growth performance trial, a randomized block design was utilized in a 5 x 2 factorial arrangement, consisting of five levels of digestible lysine (0.68; 0.78; 0.88; 0.98 and 1.08%) and two levels of ractopamine (0 and 5 ppm), totaling ten diets and five replications. In a study of carcass characteristics, the same design and levels of lysine and ractopamine were used, but another factor (sex of animals- female and male) was included, totaling 20 treatments, each one with five replicates. Except for lysine daily intake, it was not observed effect of levels of digestible lysine. The supplementation with ractopamine improved daily weight gain and feed conversion but it did not affect the average feed intake. A greater loin depth and higher yield of carcass meat was obtained in gilts, regardless to supplementation with ractopamine, and also in the males fed ractopamine. The ractopamine improved the rib-eye area but it did not affect the yield and carcass length neither thickness of subcutaneous fat. The levels of digestible lysine did not affect carcass characteristics in either sex. It was found that sex had effect on backfat thickness, which was lower in the carcasses of gilts. The use of 5 ppm ractopamine improves animal performance and carcass characteristics of barrows. The level of 0.68% digestible lysine is sufficient for pigs of both sexes fed diets supplemented with or without ractopamine to show maximal performance and a good carcass composition. |
id |
UFLA_0c1821f1459e0dc4dee588a8b9087489 |
---|---|
oai_identifier_str |
oai:localhost:1/45528 |
network_acronym_str |
UFLA |
network_name_str |
Repositório Institucional da UFLA |
repository_id_str |
|
spelling |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigsRactopamina e níveis de lisina no desempenho e nas características de carcaça de suínos em terminaçãoAdditivesAmino acidCarcass modifierNutritionAditivosAminoácidoModificador de carcaçaNutriçãoIt was evaluated the effect of diets supplemented or not supplemented with ractopamine and digestible lysine on the performance and carcass characteristics of finishing pigs. A total of 50 barrows and 50 gilts (90.2 kg ± 3.5 kg) were used. In the growth performance trial, a randomized block design was utilized in a 5 x 2 factorial arrangement, consisting of five levels of digestible lysine (0.68; 0.78; 0.88; 0.98 and 1.08%) and two levels of ractopamine (0 and 5 ppm), totaling ten diets and five replications. In a study of carcass characteristics, the same design and levels of lysine and ractopamine were used, but another factor (sex of animals- female and male) was included, totaling 20 treatments, each one with five replicates. Except for lysine daily intake, it was not observed effect of levels of digestible lysine. The supplementation with ractopamine improved daily weight gain and feed conversion but it did not affect the average feed intake. A greater loin depth and higher yield of carcass meat was obtained in gilts, regardless to supplementation with ractopamine, and also in the males fed ractopamine. The ractopamine improved the rib-eye area but it did not affect the yield and carcass length neither thickness of subcutaneous fat. The levels of digestible lysine did not affect carcass characteristics in either sex. It was found that sex had effect on backfat thickness, which was lower in the carcasses of gilts. The use of 5 ppm ractopamine improves animal performance and carcass characteristics of barrows. The level of 0.68% digestible lysine is sufficient for pigs of both sexes fed diets supplemented with or without ractopamine to show maximal performance and a good carcass composition.Avaliou-se o efeito de rações suplementadas ou não com ractopamina e lisina digestível sobre o desempenho e as características de carcaça de suínos em terminação. Foram utilizados 50 suínos machos castrados e 50 fêmeas (90,2 kg ± 3,5 kg). No ensaio para avaliação do desempenho, adotou-se o delineamento de blocos casualizados em arranjo fatorial 5 x 2, composto de cinco níveis de lisina digestível (0,68, 0,78, 0,88, 0,98, 1,08%) e dois níveis de ractopamina (0 e 5 ppm), totalizando dez dietas e cinco repetições. No estudo das características de carcaça, adotou-se mesmo delineamento, e mesmos níveis de lisina e ractopamina, porém com mais um fator (o sexo dos animais – macho e fêmea), totalizando 20 dietas, cada uma com cinco repetições. Com exceção do consumo diário de lisina, não foi observado efeito dos níveis de lisina digestível. A suplementação com ractopamina melhorou o ganho de peso médio diario e a conversão alimentar, mas não afetou o consumo médio de ração. A maior profundidade de lombo e o maior rendimento de carne na carcaça foram obtidos nas fêmeas, independente da suplementação com ractopamina, e nos machos que receberam ractopamina. A ractopamina melhorou a área de olho-de-lombo, porém não influenciou o rendimento e o comprimento da carcaça nem a espessura de toucinho. Os níveis de lisina digestível não influenciaram as características de carcaça em nenhum dos sexos. O sexo teve efeito na espessura de toucinho, que foi menor nas carcaças de fêmeas. A utilização de 5 ppm de ractopamina melhora o desempenho dos animais e as características de carcaça de suínos machos castrados. O nível de 0,68% de lisina digestível é suficiente para que suínos de ambos os sexos recebendo rações suplementadas ou não com ractopamina expressem máximo desempenho e adequada composição de carcaça.Sociedade Brasileira de Zootecnia2020-11-17T17:04:25Z2020-11-17T17:04:25Z2010-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfALMEIDA, E. C. de et al. Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs. Revista Brasileira de Zootecnia, Viçosa, MG, v. 39, n. 9, p.1961-1968, 2010. DOI: https://doi.org/10.1590/S1516-35982010000900014.http://repositorio.ufla.br/jspui/handle/1/45528Revista Brasileira de Zootecniareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessAlmeida, Erin Caperuto deFialho, Elias TadeuRodrigues, Paulo BorgesZangeronimo, Márcio GilbertoLima, José Augusto de FreitasFontes, Dalton de Oliveiraeng2020-11-17T17:05:52Zoai:localhost:1/45528Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-11-17T17:05:52Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs Ractopamina e níveis de lisina no desempenho e nas características de carcaça de suínos em terminação |
title |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
spellingShingle |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs Almeida, Erin Caperuto de Additives Amino acid Carcass modifier Nutrition Aditivos Aminoácido Modificador de carcaça Nutrição |
title_short |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
title_full |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
title_fullStr |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
title_full_unstemmed |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
title_sort |
Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs |
author |
Almeida, Erin Caperuto de |
author_facet |
Almeida, Erin Caperuto de Fialho, Elias Tadeu Rodrigues, Paulo Borges Zangeronimo, Márcio Gilberto Lima, José Augusto de Freitas Fontes, Dalton de Oliveira |
author_role |
author |
author2 |
Fialho, Elias Tadeu Rodrigues, Paulo Borges Zangeronimo, Márcio Gilberto Lima, José Augusto de Freitas Fontes, Dalton de Oliveira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Almeida, Erin Caperuto de Fialho, Elias Tadeu Rodrigues, Paulo Borges Zangeronimo, Márcio Gilberto Lima, José Augusto de Freitas Fontes, Dalton de Oliveira |
dc.subject.por.fl_str_mv |
Additives Amino acid Carcass modifier Nutrition Aditivos Aminoácido Modificador de carcaça Nutrição |
topic |
Additives Amino acid Carcass modifier Nutrition Aditivos Aminoácido Modificador de carcaça Nutrição |
description |
It was evaluated the effect of diets supplemented or not supplemented with ractopamine and digestible lysine on the performance and carcass characteristics of finishing pigs. A total of 50 barrows and 50 gilts (90.2 kg ± 3.5 kg) were used. In the growth performance trial, a randomized block design was utilized in a 5 x 2 factorial arrangement, consisting of five levels of digestible lysine (0.68; 0.78; 0.88; 0.98 and 1.08%) and two levels of ractopamine (0 and 5 ppm), totaling ten diets and five replications. In a study of carcass characteristics, the same design and levels of lysine and ractopamine were used, but another factor (sex of animals- female and male) was included, totaling 20 treatments, each one with five replicates. Except for lysine daily intake, it was not observed effect of levels of digestible lysine. The supplementation with ractopamine improved daily weight gain and feed conversion but it did not affect the average feed intake. A greater loin depth and higher yield of carcass meat was obtained in gilts, regardless to supplementation with ractopamine, and also in the males fed ractopamine. The ractopamine improved the rib-eye area but it did not affect the yield and carcass length neither thickness of subcutaneous fat. The levels of digestible lysine did not affect carcass characteristics in either sex. It was found that sex had effect on backfat thickness, which was lower in the carcasses of gilts. The use of 5 ppm ractopamine improves animal performance and carcass characteristics of barrows. The level of 0.68% digestible lysine is sufficient for pigs of both sexes fed diets supplemented with or without ractopamine to show maximal performance and a good carcass composition. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-09 2020-11-17T17:04:25Z 2020-11-17T17:04:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
ALMEIDA, E. C. de et al. Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs. Revista Brasileira de Zootecnia, Viçosa, MG, v. 39, n. 9, p.1961-1968, 2010. DOI: https://doi.org/10.1590/S1516-35982010000900014. http://repositorio.ufla.br/jspui/handle/1/45528 |
identifier_str_mv |
ALMEIDA, E. C. de et al. Ractopamine and lysine levels on performance and carcass characteristics of finishing pigs. Revista Brasileira de Zootecnia, Viçosa, MG, v. 39, n. 9, p.1961-1968, 2010. DOI: https://doi.org/10.1590/S1516-35982010000900014. |
url |
http://repositorio.ufla.br/jspui/handle/1/45528 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
Revista Brasileira de Zootecnia 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_ |
1807835054406107136 |