Immunocastration and its effects on carcass and meat traits of male pigs

Detalhes bibliográficos
Autor(a) principal: Andreo, Nayara
Data de Publicação: 2018
Outros Autores: Bridi, Ana Maria, Silva, Caio Abércio da, Peres, Louise Manha, Giangareli, Barbara de Lima, Santos, Évelyn Rangel dos, Rogel, Camila Piechnicki, Vero, Jéssica Gonçalves, Ferreira, Guilherme Agostinis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/30216
Resumo: To compose the experiment, 160 male Topgen pigs - 80 surgically castrated (treatment 1) and 80 immunocastrated (treatment 2) - were randomly selected from a commercial swine farm at the moment of slaughter. Surgical castration was performed when the animals were seven days of age and immunocastration was performed by administering two doses (2 mL each) of immunocastration vaccine (analogue of GnRF linked to a carrier protein, development of anti-GnRF antibodies, 200 mg of a GnRF-protein conjugate/mL) when they were 104 and 132 days of age. Animals from both treatments were maintained in masonry stalls, where they received water and ad libitum diet (the same feed for both groups). The animals were slaughtered at 160 days of age, and the length and width of the testicles of immunocastrated animals were evaluated, along with the degree and number of carcass lesions, carcass traits and meat quality of both treatments. The means of these measurements were calculated and compared by Student´s t-test. For the immunocastrated treatment, Pearson´s correlation coefficients were also calculated for testicle length and width with backfat thickness. Approximately 80% of the immunocastrated animals had testicle widths of 11 cm or less. Immunocastrated animals showed higher degrees of lesions, pH (initial and 8 hours), hue, muscle depth and loin eye area and lower brightness, redness, chroma and backfat thickness than the surgically castrated animals. The correlation between testicle length and width with backfat thickness was inverse. Immunocastration can be an alternative to improve the proportion of lean meat (longissimus thoracis) instead of fat (backfat thickness) leading to better carcass and meat quality, since fat has become undesirable from a nutritional point of view in swine.
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spelling Immunocastration and its effects on carcass and meat traits of male pigsImunocastração e seus efeitos nas características de carcaça e carne de suínos machosBackfat thicknessColorGonadotropin-hormoneImprovac®Testicle size.CorEspessura de gorduraHormônio liberador de gonadotropinasVivax®Tamanho dos testículos.To compose the experiment, 160 male Topgen pigs - 80 surgically castrated (treatment 1) and 80 immunocastrated (treatment 2) - were randomly selected from a commercial swine farm at the moment of slaughter. Surgical castration was performed when the animals were seven days of age and immunocastration was performed by administering two doses (2 mL each) of immunocastration vaccine (analogue of GnRF linked to a carrier protein, development of anti-GnRF antibodies, 200 mg of a GnRF-protein conjugate/mL) when they were 104 and 132 days of age. Animals from both treatments were maintained in masonry stalls, where they received water and ad libitum diet (the same feed for both groups). The animals were slaughtered at 160 days of age, and the length and width of the testicles of immunocastrated animals were evaluated, along with the degree and number of carcass lesions, carcass traits and meat quality of both treatments. The means of these measurements were calculated and compared by Student´s t-test. For the immunocastrated treatment, Pearson´s correlation coefficients were also calculated for testicle length and width with backfat thickness. Approximately 80% of the immunocastrated animals had testicle widths of 11 cm or less. Immunocastrated animals showed higher degrees of lesions, pH (initial and 8 hours), hue, muscle depth and loin eye area and lower brightness, redness, chroma and backfat thickness than the surgically castrated animals. The correlation between testicle length and width with backfat thickness was inverse. Immunocastration can be an alternative to improve the proportion of lean meat (longissimus thoracis) instead of fat (backfat thickness) leading to better carcass and meat quality, since fat has become undesirable from a nutritional point of view in swine.Para compor o experimento, 160 suínos machos (Topgen) - 80 castrados cirurgicamente (tratamento 1) e 80 imunocastrados (tratamento 2) - foram selecionados aleatoriamente de uma granja comercial de suínos no momento do abate. A castração cirúrgica foi realizada quando os animais tinham sete dias de idade e a imunocastração realizada através da administração de duas doses (2 mL cada) da vacina de imunocastração (análogo do GnRH ligado a uma proteína carreadora, desenvolvimento de anticorpos anti-GnRH, 200 mg de um conjugado de proteína GnRH/mL) quando os animais tinham 104 e 132 dias de idade. Os animais de ambos os tratamentos foram mantidos em baias de alvenaria, onde receberam água e ração ad libitum (a mesma dieta para ambos os grupos). Os animais foram abatidos com 160 dias de idade e foram avaliados o comprimento e largura dos testículos dos animais imunocastrados, e o grau e número de lesões na carcaça, características de carcaça e qualidade da carne de ambos os tratamentos. As médias para essas avaliações foram calculadas e comparadas com o teste t. Para o tratamento imunocastrado foi também calculado o coeficiente de correlação de Pearson´s do comprimento e largura dos testículos com a espessura de gordura. Aproximadamente 80% dos animais tiveram largura dos testículos igual ou menor que 11 cm. Os animais imunocastrados mostraram maior grau de lesão, pH (inicial e 8 horas), tonalidade, profundidade de músculo e área de olho de lombo e menor luminosidade, intensidade de vermelho, croma e espessura de gordura do que os animais castrados cirurgicamente. A correlação entre comprimento e largura dos testículos com a espessura de gordura foi negativa. A imunocastração pode ser uma alternativa para aumentar a proporção de carne magra (longissimus thoracis) em detrimento de gordura (espessura de gordura), levando a uma carcaça de melhor qualidade desde que a gordura suína se tornou indesejável do ponto de vista nutricional.UEL2018-11-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3021610.5433/1679-0359.2018v39n6p2531Semina: Ciências Agrárias; Vol. 39 No. 6 (2018); 2531-2540Semina: Ciências Agrárias; v. 39 n. 6 (2018); 2531-25401679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/30216/24573Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAndreo, NayaraBridi, Ana MariaSilva, Caio Abércio daPeres, Louise ManhaGiangareli, Barbara de LimaSantos, Évelyn Rangel dosRogel, Camila PiechnickiVero, Jéssica GonçalvesFerreira, Guilherme Agostinis2022-10-20T16:13:58Zoai:ojs.pkp.sfu.ca:article/30216Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T16:13:58Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Immunocastration and its effects on carcass and meat traits of male pigs
Imunocastração e seus efeitos nas características de carcaça e carne de suínos machos
title Immunocastration and its effects on carcass and meat traits of male pigs
spellingShingle Immunocastration and its effects on carcass and meat traits of male pigs
Andreo, Nayara
Backfat thickness
Color
Gonadotropin-hormone
Improvac®
Testicle size.
Cor
Espessura de gordura
Hormônio liberador de gonadotropinas
Vivax®
Tamanho dos testículos.
title_short Immunocastration and its effects on carcass and meat traits of male pigs
title_full Immunocastration and its effects on carcass and meat traits of male pigs
title_fullStr Immunocastration and its effects on carcass and meat traits of male pigs
title_full_unstemmed Immunocastration and its effects on carcass and meat traits of male pigs
title_sort Immunocastration and its effects on carcass and meat traits of male pigs
author Andreo, Nayara
author_facet Andreo, Nayara
Bridi, Ana Maria
Silva, Caio Abércio da
Peres, Louise Manha
Giangareli, Barbara de Lima
Santos, Évelyn Rangel dos
Rogel, Camila Piechnicki
Vero, Jéssica Gonçalves
Ferreira, Guilherme Agostinis
author_role author
author2 Bridi, Ana Maria
Silva, Caio Abércio da
Peres, Louise Manha
Giangareli, Barbara de Lima
Santos, Évelyn Rangel dos
Rogel, Camila Piechnicki
Vero, Jéssica Gonçalves
Ferreira, Guilherme Agostinis
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Andreo, Nayara
Bridi, Ana Maria
Silva, Caio Abércio da
Peres, Louise Manha
Giangareli, Barbara de Lima
Santos, Évelyn Rangel dos
Rogel, Camila Piechnicki
Vero, Jéssica Gonçalves
Ferreira, Guilherme Agostinis
dc.subject.por.fl_str_mv Backfat thickness
Color
Gonadotropin-hormone
Improvac®
Testicle size.
Cor
Espessura de gordura
Hormônio liberador de gonadotropinas
Vivax®
Tamanho dos testículos.
topic Backfat thickness
Color
Gonadotropin-hormone
Improvac®
Testicle size.
Cor
Espessura de gordura
Hormônio liberador de gonadotropinas
Vivax®
Tamanho dos testículos.
description To compose the experiment, 160 male Topgen pigs - 80 surgically castrated (treatment 1) and 80 immunocastrated (treatment 2) - were randomly selected from a commercial swine farm at the moment of slaughter. Surgical castration was performed when the animals were seven days of age and immunocastration was performed by administering two doses (2 mL each) of immunocastration vaccine (analogue of GnRF linked to a carrier protein, development of anti-GnRF antibodies, 200 mg of a GnRF-protein conjugate/mL) when they were 104 and 132 days of age. Animals from both treatments were maintained in masonry stalls, where they received water and ad libitum diet (the same feed for both groups). The animals were slaughtered at 160 days of age, and the length and width of the testicles of immunocastrated animals were evaluated, along with the degree and number of carcass lesions, carcass traits and meat quality of both treatments. The means of these measurements were calculated and compared by Student´s t-test. For the immunocastrated treatment, Pearson´s correlation coefficients were also calculated for testicle length and width with backfat thickness. Approximately 80% of the immunocastrated animals had testicle widths of 11 cm or less. Immunocastrated animals showed higher degrees of lesions, pH (initial and 8 hours), hue, muscle depth and loin eye area and lower brightness, redness, chroma and backfat thickness than the surgically castrated animals. The correlation between testicle length and width with backfat thickness was inverse. Immunocastration can be an alternative to improve the proportion of lean meat (longissimus thoracis) instead of fat (backfat thickness) leading to better carcass and meat quality, since fat has become undesirable from a nutritional point of view in swine.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/30216
10.5433/1679-0359.2018v39n6p2531
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/30216
identifier_str_mv 10.5433/1679-0359.2018v39n6p2531
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/30216/24573
dc.rights.driver.fl_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 39 No. 6 (2018); 2531-2540
Semina: Ciências Agrárias; v. 39 n. 6 (2018); 2531-2540
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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