The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/29516 |
Resumo: | One to 42-d-old (432) female broilers were fed different levels of inorganic selenium (ISe) and organic selenium (OSe), according to the following treatments: (1) 0.3 mg ISe; (2) 0.3 mg ISe + 0.2 mg OSe; (3) 0.5 mg ISe and (4) 0.3 mg OSe/ kg of feed. All birds were vaccinated against infectious bursal disease (IBD) at 19d of age and three birds/replicate (R) were inoculated with sheep red blood cells (SRBC) at 32d. Three other birds/R received Freund’s adjuvant at 37d and avian tuberculin (AT) in the wattle at 47d of age. All birds were submitted to heat stress after 21d. Performance parameters, bursa and spleen weights, lymphocyte bursa depletion, antibody (Ab) production against IBD and SRBC, hematocrit, leukocytes, heterophil/lymphocyte ratio (H/L), and cellular reaction to AT were evaluated. The contrast analysis showed that OSe has improved feed intake (FI) between day 1 and 42 (p<0.10). Birds fed ISe presented worse H/L ratio (p<0.10), but higher Ab titers against IBD (p<0.04) and SRBC (p<0.05) than birds fed OSe, but OSe supplemented birds showed lower lymphocyte depletion scores in the bursa. The higher FI promoted by OSe may be beneficial when rearing broilers in hot weather. The use of ISe induced higher humoral immune response. |
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Silva, Isabel Cristina Mello daRibeiro, Andrea Machado LealCanal, Cláudio WageckTrevizan, LucianoMacagnan, MarisaGonçalves, Thomas AguiarHlavac, Nicole Regina CapacchiAlmeida, Laura Lopes dePereira, Rosecler Alves2011-06-10T06:00:23Z20101516-635Xhttp://hdl.handle.net/10183/29516000772867One to 42-d-old (432) female broilers were fed different levels of inorganic selenium (ISe) and organic selenium (OSe), according to the following treatments: (1) 0.3 mg ISe; (2) 0.3 mg ISe + 0.2 mg OSe; (3) 0.5 mg ISe and (4) 0.3 mg OSe/ kg of feed. All birds were vaccinated against infectious bursal disease (IBD) at 19d of age and three birds/replicate (R) were inoculated with sheep red blood cells (SRBC) at 32d. Three other birds/R received Freund’s adjuvant at 37d and avian tuberculin (AT) in the wattle at 47d of age. All birds were submitted to heat stress after 21d. Performance parameters, bursa and spleen weights, lymphocyte bursa depletion, antibody (Ab) production against IBD and SRBC, hematocrit, leukocytes, heterophil/lymphocyte ratio (H/L), and cellular reaction to AT were evaluated. The contrast analysis showed that OSe has improved feed intake (FI) between day 1 and 42 (p<0.10). Birds fed ISe presented worse H/L ratio (p<0.10), but higher Ab titers against IBD (p<0.04) and SRBC (p<0.05) than birds fed OSe, but OSe supplemented birds showed lower lymphocyte depletion scores in the bursa. The higher FI promoted by OSe may be beneficial when rearing broilers in hot weather. The use of ISe induced higher humoral immune response.application/pdfengRevista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 12, n. 4 (out.-dez. 2010), p. 247-254Frango de corteStress térmicoThe impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stressinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT000772867.pdf.txt000772867.pdf.txtExtracted Texttext/plain37597http://www.lume.ufrgs.br/bitstream/10183/29516/2/000772867.pdf.txt9bc19cbbe5eeea5536f056ae96bb6574MD52ORIGINAL000772867.pdf000772867.pdfTexto completo (inglês)application/pdf497430http://www.lume.ufrgs.br/bitstream/10183/29516/1/000772867.pdfefd89799c8409d523bd741e1cc6e9d00MD51THUMBNAIL000772867.pdf.jpg000772867.pdf.jpgGenerated Thumbnailimage/jpeg1825http://www.lume.ufrgs.br/bitstream/10183/29516/3/000772867.pdf.jpg2d3af6b2d175437a3ad8314916df8e72MD5310183/295162021-08-18 04:42:39.849352oai:www.lume.ufrgs.br:10183/29516Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2021-08-18T07:42:39Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
title |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
spellingShingle |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress Silva, Isabel Cristina Mello da Frango de corte Stress térmico |
title_short |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
title_full |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
title_fullStr |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
title_full_unstemmed |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
title_sort |
The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress |
author |
Silva, Isabel Cristina Mello da |
author_facet |
Silva, Isabel Cristina Mello da Ribeiro, Andrea Machado Leal Canal, Cláudio Wageck Trevizan, Luciano Macagnan, Marisa Gonçalves, Thomas Aguiar Hlavac, Nicole Regina Capacchi Almeida, Laura Lopes de Pereira, Rosecler Alves |
author_role |
author |
author2 |
Ribeiro, Andrea Machado Leal Canal, Cláudio Wageck Trevizan, Luciano Macagnan, Marisa Gonçalves, Thomas Aguiar Hlavac, Nicole Regina Capacchi Almeida, Laura Lopes de Pereira, Rosecler Alves |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Isabel Cristina Mello da Ribeiro, Andrea Machado Leal Canal, Cláudio Wageck Trevizan, Luciano Macagnan, Marisa Gonçalves, Thomas Aguiar Hlavac, Nicole Regina Capacchi Almeida, Laura Lopes de Pereira, Rosecler Alves |
dc.subject.por.fl_str_mv |
Frango de corte Stress térmico |
topic |
Frango de corte Stress térmico |
description |
One to 42-d-old (432) female broilers were fed different levels of inorganic selenium (ISe) and organic selenium (OSe), according to the following treatments: (1) 0.3 mg ISe; (2) 0.3 mg ISe + 0.2 mg OSe; (3) 0.5 mg ISe and (4) 0.3 mg OSe/ kg of feed. All birds were vaccinated against infectious bursal disease (IBD) at 19d of age and three birds/replicate (R) were inoculated with sheep red blood cells (SRBC) at 32d. Three other birds/R received Freund’s adjuvant at 37d and avian tuberculin (AT) in the wattle at 47d of age. All birds were submitted to heat stress after 21d. Performance parameters, bursa and spleen weights, lymphocyte bursa depletion, antibody (Ab) production against IBD and SRBC, hematocrit, leukocytes, heterophil/lymphocyte ratio (H/L), and cellular reaction to AT were evaluated. The contrast analysis showed that OSe has improved feed intake (FI) between day 1 and 42 (p<0.10). Birds fed ISe presented worse H/L ratio (p<0.10), but higher Ab titers against IBD (p<0.04) and SRBC (p<0.05) than birds fed OSe, but OSe supplemented birds showed lower lymphocyte depletion scores in the bursa. The higher FI promoted by OSe may be beneficial when rearing broilers in hot weather. The use of ISe induced higher humoral immune response. |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010 |
dc.date.accessioned.fl_str_mv |
2011-06-10T06:00:23Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/29516 |
dc.identifier.issn.pt_BR.fl_str_mv |
1516-635X |
dc.identifier.nrb.pt_BR.fl_str_mv |
000772867 |
identifier_str_mv |
1516-635X 000772867 |
url |
http://hdl.handle.net/10183/29516 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 12, n. 4 (out.-dez. 2010), p. 247-254 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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