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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
28/09/2020 |
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Actualizado : |
28/09/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FERNÁNDEZ ,S.; FRAGA, M.; CASTELLS, M.; COLINA, R.; ZUNINO,P. |
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Afiliación : |
MARTIN FRAGA COTELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO ZUNINO. |
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Título : |
Effect of the administration of Lactobacillus spp. strains on neonatal diarrhoea, immune parameters and pathogen abundance in pre-weaned calves. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Beneficial Microbes, 1 September 2020, Volume 11, Issue 5, Pages 477-488. Doi: https://doi.org/10.3920/BM2019.0167 |
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DOI : |
10.3920/BM2019.0167 |
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Idioma : |
Inglés |
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Contenido : |
Abstract:
Neonatal calf diarrhoea is one of the challenges faced by intensive farming, and probiotics are considered a promising approach to improve calves' health. The objective of this study was to evaluate the effect of potential probiotic lactobacilli on new-born dairy calves' growth, diarrhoea incidence, faecal score, cytokine expression in blood cells, immunoglobulin A (IgA) levels in plasma and faeces, and pathogen abundance in faeces. Two in vivo assays were conducted at the same farm in two annual calving seasons. Treated calves received one daily dose of the selected lactobacilli (Lactobacillus reuteri TP1.3B or Lactobacillus johnsonii TP1.6) for 10 consecutive days. A faecal score was recorded daily, average daily gain (ADG) was calculated, and blood and faeces samples were collected. Pathogen abundance was analysed by absolute qPCR in faeces using primers directed at Salmonella enterica, rotavirus, coronavirus, Cryptosporidium parvum and three Escherichia coli virulence genes (eae, clpG and Stx1). The faecal score was positively affected by the administration of both lactobacilli strains, and diarrhoea incidence was significantly lower in treated calves. No differences were found regarding ADG, cytokine expression, IgA levels and pathogen abundance. Our findings showed that oral administration of these strains could improve gastrointestinal health, but results could vary depending on the calving season, which may be related to pathogen seasonality and other environmental effects. MenosAbstract:
Neonatal calf diarrhoea is one of the challenges faced by intensive farming, and probiotics are considered a promising approach to improve calves' health. The objective of this study was to evaluate the effect of potential probiotic lactobacilli on new-born dairy calves' growth, diarrhoea incidence, faecal score, cytokine expression in blood cells, immunoglobulin A (IgA) levels in plasma and faeces, and pathogen abundance in faeces. Two in vivo assays were conducted at the same farm in two annual calving seasons. Treated calves received one daily dose of the selected lactobacilli (Lactobacillus reuteri TP1.3B or Lactobacillus johnsonii TP1.6) for 10 consecutive days. A faecal score was recorded daily, average daily gain (ADG) was calculated, and blood and faeces samples were collected. Pathogen abundance was analysed by absolute qPCR in faeces using primers directed at Salmonella enterica, rotavirus, coronavirus, Cryptosporidium parvum and three Escherichia coli virulence genes (eae, clpG and Stx1). The faecal score was positively affected by the administration of both lactobacilli strains, and diarrhoea incidence was significantly lower in treated calves. No differences were found regarding ADG, cytokine expression, IgA levels and pathogen abundance. Our findings showed that oral administration of these strains could improve gastrointestinal health, but results could vary depending on the calving season, which may be related to pathogen seasonality and other envir... Presentar Todo |
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Palabras claves : |
CALVES; DIARREA; DIARREA NEONATAL; DIARRHOEA; LACTOBACILLUS SPP; PLATAFORMA SALUD ANIMAL; PROBIÓTICOS; PROBIOTICS. |
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Asunto categoría : |
E16 Enfermedades de los animales |
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Marc : |
LEADER 02407naa a2200277 a 4500
001 1061350
005 2020-09-28
008 2020 bl uuuu u00u1 u #d
024 7 $a10.3920/BM2019.0167$2DOI
100 1 $aFERNÁNDEZ ,S.
245 $aEffect of the administration of Lactobacillus spp. strains on neonatal diarrhoea, immune parameters and pathogen abundance in pre-weaned calves.$h[electronic resource]
260 $c2020
520 $aAbstract: Neonatal calf diarrhoea is one of the challenges faced by intensive farming, and probiotics are considered a promising approach to improve calves' health. The objective of this study was to evaluate the effect of potential probiotic lactobacilli on new-born dairy calves' growth, diarrhoea incidence, faecal score, cytokine expression in blood cells, immunoglobulin A (IgA) levels in plasma and faeces, and pathogen abundance in faeces. Two in vivo assays were conducted at the same farm in two annual calving seasons. Treated calves received one daily dose of the selected lactobacilli (Lactobacillus reuteri TP1.3B or Lactobacillus johnsonii TP1.6) for 10 consecutive days. A faecal score was recorded daily, average daily gain (ADG) was calculated, and blood and faeces samples were collected. Pathogen abundance was analysed by absolute qPCR in faeces using primers directed at Salmonella enterica, rotavirus, coronavirus, Cryptosporidium parvum and three Escherichia coli virulence genes (eae, clpG and Stx1). The faecal score was positively affected by the administration of both lactobacilli strains, and diarrhoea incidence was significantly lower in treated calves. No differences were found regarding ADG, cytokine expression, IgA levels and pathogen abundance. Our findings showed that oral administration of these strains could improve gastrointestinal health, but results could vary depending on the calving season, which may be related to pathogen seasonality and other environmental effects.
653 $aCALVES
653 $aDIARREA
653 $aDIARREA NEONATAL
653 $aDIARRHOEA
653 $aLACTOBACILLUS SPP
653 $aPLATAFORMA SALUD ANIMAL
653 $aPROBIÓTICOS
653 $aPROBIOTICS
700 1 $aFRAGA, M.
700 1 $aCASTELLS, M.
700 1 $aCOLINA, R.
700 1 $aZUNINO,P.
773 $tBeneficial Microbes, 1 September 2020, Volume 11, Issue 5, Pages 477-488. Doi: https://doi.org/10.3920/BM2019.0167
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Registro original : |
INIA La Estanzuela (LE) |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
09/04/2021 |
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Actualizado : |
09/04/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GLARE, T.T.; SCHOLTE OP REIMERA, Y.; CUMMINGS, N.; RIVAS, F.; NELSON, T.L.; ZIMMERMANN, G. |
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Afiliación : |
TRAVIS R. GLARE, Bio-Protection Research Centre, Lincoln University, Christchurch, New Zealand; YVONNE SCHOLTE OP REIMERA, Bio-Protection Research Centre, Lincoln University, Christchurch, New Zealand; Academie Life Science, Engineering Design, University of Applied Sciences, Saxion, Netherlands; NICHOLAS CUMMINGS, Bio-Protection Research Centre, Lincoln University, Christchurch, New Zealand; AsureQuality Plant Health Laboratory, Lincoln, New Zealand; FEDERICO RIVAS FRANCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Bio-Protection Research Centre, Lincoln University, Christchurch, New Zealand; TRACEY L. NELSON, Bio-Protection Research Centre, Lincoln University, Christchurch, New Zealand; AgResearch, Christchurch, New Zealand; GISBERT ZIMMERMANN, Julius Kühn-Institut, Darmstadt, Germany. |
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Título : |
Diversity of the insect pathogenic fungi in the genus Metarhizium in New Zealand. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
New Zealand Journal of Botany, 2021. Doi: https://doi.org/10.1080/0028825X.2021.1890155 |
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ISSN : |
0028-825X |
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DOI : |
10.1080/0028825X.2021.1890155 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 19 October 2020; Accepted 8 February 2021.
Handling editor: Eric McKenzie. |
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Contenido : |
ABSTRACT.
Invertebrate-pathogenic fungi in the genus Metarhizium are commonly found throughout the world on a wide range of different arthropod hosts. Some strains have been developed as biopesticides and many others have shown potential for controlling important insect pests. Given the current interest in using these fungi, precise identification at species level is crucial, both for understanding their diversity and ecology and for regulatory approval and monitoring of new biopesticides. Metarhizium has undergone extensive systematic revision over the last decade, resulting in a large number of name changes and new species. This has created regulatory issues in New Zealand and importation of biocontrol strains has become difficult due to a lack of knowledge of which Metarhizium species are present in the country. This study identified Metarhizium isolates held in culture collections in New Zealand following analysis of sequence data from the ef-1α, β-tubulin, rpb1, and ITS regions. Our results show that M. anisopliae, M. brunneum, M. frigidum, M. novozealandicum, M. pemphigi, M. rileyi and M. robertsii occur naturally in New Zealand on native and introduced insect hosts. Exotic Metarhizium species from several countries, stored in New Zealand collections, include M. acridum, M. lepidiotae, M. majus and M. pingshaense.
© 2021 The Royal Society of New Zealand |
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Palabras claves : |
Biocontrol; Diversity; Entomopathogenic fungi; Fungi; Hypocreales; Metarhizium spp. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02327naa a2200289 a 4500
001 1061970
005 2021-04-09
008 2021 bl uuuu u00u1 u #d
022 $a0028-825X
024 7 $a10.1080/0028825X.2021.1890155$2DOI
100 1 $aGLARE, T.T.
245 $aDiversity of the insect pathogenic fungi in the genus Metarhizium in New Zealand.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 19 October 2020; Accepted 8 February 2021. Handling editor: Eric McKenzie.
520 $aABSTRACT. Invertebrate-pathogenic fungi in the genus Metarhizium are commonly found throughout the world on a wide range of different arthropod hosts. Some strains have been developed as biopesticides and many others have shown potential for controlling important insect pests. Given the current interest in using these fungi, precise identification at species level is crucial, both for understanding their diversity and ecology and for regulatory approval and monitoring of new biopesticides. Metarhizium has undergone extensive systematic revision over the last decade, resulting in a large number of name changes and new species. This has created regulatory issues in New Zealand and importation of biocontrol strains has become difficult due to a lack of knowledge of which Metarhizium species are present in the country. This study identified Metarhizium isolates held in culture collections in New Zealand following analysis of sequence data from the ef-1α, β-tubulin, rpb1, and ITS regions. Our results show that M. anisopliae, M. brunneum, M. frigidum, M. novozealandicum, M. pemphigi, M. rileyi and M. robertsii occur naturally in New Zealand on native and introduced insect hosts. Exotic Metarhizium species from several countries, stored in New Zealand collections, include M. acridum, M. lepidiotae, M. majus and M. pingshaense. © 2021 The Royal Society of New Zealand
653 $aBiocontrol
653 $aDiversity
653 $aEntomopathogenic fungi
653 $aFungi
653 $aHypocreales
653 $aMetarhizium spp
700 1 $aSCHOLTE OP REIMERA, Y.
700 1 $aCUMMINGS, N.
700 1 $aRIVAS, F.
700 1 $aNELSON, T.L.
700 1 $aZIMMERMANN, G.
773 $tNew Zealand Journal of Botany, 2021. Doi: https://doi.org/10.1080/0028825X.2021.1890155
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