Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , |
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/39286 |
Resumo: | Although cattle feedlot presents productive advantages, this management generates stress, which may impact immunity and increase the incidence of respiratory diseases. Because the immunostimulatory potential of yeasts, this study aimed to verify whether supplementation of cattle with fresh yeast promotes an increase in innate immunity and, consequently, reduces the occurrence of respiratory diseases in heifers finished in feedlots. A total of 32 heifers, finished in feedlots, were randomly divided into two treatments and 16 repetitions: A control group (n=16; 7 g day -1 per animal of corn kernel) and a yeast group (n=16, 7 g day -1 per animal of the commercial product with fresh yeast additive). At day 0, 16 days after acclimatisation to the feedlot, and at days 28, 56 and 84, leukogram, serum haptoglobin, oxidative metabolism neutrophil, and indicators of respiratory diseases (nasal temperatures, nasal secretion score, and histopathological examination of lung) were evaluated. The yeast group had lower blood neutrophil counts (P = 0.02), higher neutrophil oxidative metabolism (P = 0.04) than the control group after 56 days of confinement. There was a lower frequency of animals from the yeast group with purulent nasal secretion on days 28 and 84 (P = 0.0001 and 0.008) and with histopathological lesion of pneumonia at slaughter day (P = 0.0001). The yeast group also presented lower nasal temperatures than the control group on days 28 and 84 (P = 0.02 and P= 0.08). Thus, fresh yeast additives attenuated the effects of the feedlot system in the heifer immune system and contributed to a reduction of respiratory diseases. |
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Semina. Ciências Agrárias (Online) |
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Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlotsAditivos de levedura viva melhoram parâmetros imunes e reduzem doenças respiratórias em novilhos terminados em confinamentoSaccharomyces cerevisiaeOxidative metabolismPneumoniaBovine.Saccharomyces cerevisiaeMetabolismo oxidativoPneumoniaBovinos.Although cattle feedlot presents productive advantages, this management generates stress, which may impact immunity and increase the incidence of respiratory diseases. Because the immunostimulatory potential of yeasts, this study aimed to verify whether supplementation of cattle with fresh yeast promotes an increase in innate immunity and, consequently, reduces the occurrence of respiratory diseases in heifers finished in feedlots. A total of 32 heifers, finished in feedlots, were randomly divided into two treatments and 16 repetitions: A control group (n=16; 7 g day -1 per animal of corn kernel) and a yeast group (n=16, 7 g day -1 per animal of the commercial product with fresh yeast additive). At day 0, 16 days after acclimatisation to the feedlot, and at days 28, 56 and 84, leukogram, serum haptoglobin, oxidative metabolism neutrophil, and indicators of respiratory diseases (nasal temperatures, nasal secretion score, and histopathological examination of lung) were evaluated. The yeast group had lower blood neutrophil counts (P = 0.02), higher neutrophil oxidative metabolism (P = 0.04) than the control group after 56 days of confinement. There was a lower frequency of animals from the yeast group with purulent nasal secretion on days 28 and 84 (P = 0.0001 and 0.008) and with histopathological lesion of pneumonia at slaughter day (P = 0.0001). The yeast group also presented lower nasal temperatures than the control group on days 28 and 84 (P = 0.02 and P= 0.08). Thus, fresh yeast additives attenuated the effects of the feedlot system in the heifer immune system and contributed to a reduction of respiratory diseases.Embora confinamento de bovinos apresente vantagens produtivas, este manejo gera estresse, podendo impactar a imunidade e aumentar a incidência de doenças respiratórias. Tendo em vista o potencial imunoestimulante das leveduras, este trabalho objetivou verificar se a suplementação de bovinos com levedura fresca promove incremento da imunidade inata e consequentemente, diminui a ocorrência de afecções respiratórias de novilhas terminados em confinamento. Para tanto 32 novilhas terminadas em confinamento, foram divididas aleatoriamente em dois tratamentos, com 16 repetições cada, formando o grupo controle (n = 16; 7 g dia -1 por animal de caroço de milho) e o grupo levedura (n = 16, 7 g dia -1 por animal do produto comercial com aditivo de levedura fresca). No dia 0, 16 dias após a aclimatação ao confinamento, e nos dias 28, 56 e 84, avaliou-se o leucograma, haptoglobina sérica, metabolismo oxidativo de leucócitos e indicadores de doenças respiratórias (temperatura nasal, escore de secreção nasal e exame histopatológico do pulmão). O grupo levedura apresentou menor contagem de neutrófilos no sangue (P = 0.02), maior metabolismo oxidativo dos neutrófilos (P = 0.02) e menores níveis séricos de haptoglobina (P = 0.04) do que o grupo controle após 56 dias de confinamento. Houve menor frequência de animais do grupo levedura com secreção nasal purulenta nos dias 28 e 84 (P = 0.0001 e 0,008) e com lesão histopatológica de pneumonia no dia do abate (P = 0.0001). O grupo levedura também apresentou temperaturas nasais mais baixas do que o grupo controle nos dias 28 e 84 (P = 0.02 e P = 0.08). Assim conclui-se que o aditivo de levedura fresca atenuou os efeitos do sistema de confinamento no sistema imunológico de novilhas e contribuíram para a redução de doenças respiratórias, o que traz impactos importantes na pecuária seja por reduzir custos com tratamento, evitar resistência bacteriana a antibióticos, como diminuir a morbidade de doenças respiratórias entre os animais .UEL2020-11-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionClinical experimental, 2 treatment and 16 repetitionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3928610.5433/1679-0359.2020v41n6Supl2p3177Semina: Ciências Agrárias; Vol. 41 No. 6Supl2 (2020); 3177-3188Semina: Ciências Agrárias; v. 41 n. 6Supl2 (2020); 3177-31881679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39286/28274Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessVirmond, Mauricio PauloRossi, Patricia SantosAntunes, Anna VictoriaMattei, Rafael IgorSchllemer, Natali ReginaThomaz, Gabriela RodriguesGarbossa, GabrielaNeumann, MikaelBertagnon, Heloisa Godoi2022-10-04T16:45:16Zoai:ojs.pkp.sfu.ca:article/39286Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-04T16:45:16Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots Aditivos de levedura viva melhoram parâmetros imunes e reduzem doenças respiratórias em novilhos terminados em confinamento |
title |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
spellingShingle |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots Virmond, Mauricio Paulo Saccharomyces cerevisiae Oxidative metabolism Pneumonia Bovine. Saccharomyces cerevisiae Metabolismo oxidativo Pneumonia Bovinos. |
title_short |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
title_full |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
title_fullStr |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
title_full_unstemmed |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
title_sort |
Fresh yeast additives improve immune parameters and reduce respiratory disease in heifers finished in feedlots |
author |
Virmond, Mauricio Paulo |
author_facet |
Virmond, Mauricio Paulo Rossi, Patricia Santos Antunes, Anna Victoria Mattei, Rafael Igor Schllemer, Natali Regina Thomaz, Gabriela Rodrigues Garbossa, Gabriela Neumann, Mikael Bertagnon, Heloisa Godoi |
author_role |
author |
author2 |
Rossi, Patricia Santos Antunes, Anna Victoria Mattei, Rafael Igor Schllemer, Natali Regina Thomaz, Gabriela Rodrigues Garbossa, Gabriela Neumann, Mikael Bertagnon, Heloisa Godoi |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Virmond, Mauricio Paulo Rossi, Patricia Santos Antunes, Anna Victoria Mattei, Rafael Igor Schllemer, Natali Regina Thomaz, Gabriela Rodrigues Garbossa, Gabriela Neumann, Mikael Bertagnon, Heloisa Godoi |
dc.subject.por.fl_str_mv |
Saccharomyces cerevisiae Oxidative metabolism Pneumonia Bovine. Saccharomyces cerevisiae Metabolismo oxidativo Pneumonia Bovinos. |
topic |
Saccharomyces cerevisiae Oxidative metabolism Pneumonia Bovine. Saccharomyces cerevisiae Metabolismo oxidativo Pneumonia Bovinos. |
description |
Although cattle feedlot presents productive advantages, this management generates stress, which may impact immunity and increase the incidence of respiratory diseases. Because the immunostimulatory potential of yeasts, this study aimed to verify whether supplementation of cattle with fresh yeast promotes an increase in innate immunity and, consequently, reduces the occurrence of respiratory diseases in heifers finished in feedlots. A total of 32 heifers, finished in feedlots, were randomly divided into two treatments and 16 repetitions: A control group (n=16; 7 g day -1 per animal of corn kernel) and a yeast group (n=16, 7 g day -1 per animal of the commercial product with fresh yeast additive). At day 0, 16 days after acclimatisation to the feedlot, and at days 28, 56 and 84, leukogram, serum haptoglobin, oxidative metabolism neutrophil, and indicators of respiratory diseases (nasal temperatures, nasal secretion score, and histopathological examination of lung) were evaluated. The yeast group had lower blood neutrophil counts (P = 0.02), higher neutrophil oxidative metabolism (P = 0.04) than the control group after 56 days of confinement. There was a lower frequency of animals from the yeast group with purulent nasal secretion on days 28 and 84 (P = 0.0001 and 0.008) and with histopathological lesion of pneumonia at slaughter day (P = 0.0001). The yeast group also presented lower nasal temperatures than the control group on days 28 and 84 (P = 0.02 and P= 0.08). Thus, fresh yeast additives attenuated the effects of the feedlot system in the heifer immune system and contributed to a reduction of respiratory diseases. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Clinical experimental, 2 treatment and 16 repetition |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39286 10.5433/1679-0359.2020v41n6Supl2p3177 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39286 |
identifier_str_mv |
10.5433/1679-0359.2020v41n6Supl2p3177 |
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/39286/28274 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 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. 41 No. 6Supl2 (2020); 3177-3188 Semina: Ciências Agrárias; v. 41 n. 6Supl2 (2020); 3177-3188 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 |
_version_ |
1799306082704687104 |