The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress

Detalhes bibliográficos
Autor(a) principal: Silva, Isabel Cristina Mello da
Data de Publicação: 2010
Outros Autores: 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
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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spelling 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
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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
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