A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms
- Autores
- Vega, Celina Guadalupe; Bok, Marina; Ebinger, Maren; Rocha, Lucia Alejandra; Rivolta, Alejandra Antonella; González Thomas, Valeria; Muntadas, Pilar; D´Aloia, Ricardo; Pinto, Verónica; Parreño, Gladys Viviana; Wigdorovitz, Andrés
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Background: Neonatal diarrhea remains one of the main causes of morbi-mortality in dairy calves under artificial rearing. It is often caused by infectious agents of viral, bacterial, or parasitic origin. Cows vaccination and colostrum intake by calves during the first 6 h of life are critical strategies to prevent severe diarrhea but these are still insufficient. Here we report the field evaluation of a product based on IgY antibodies against group A rotavirus (RVA), coronavirus (CoV), enterotoxigenic Escherichia coli, and Salmonella sp. This product, named IgY DNT, has been designed as a complementary passive immunization strategy to prevent neonatal calf diarrhea. The quality of the product depends on the titers of specific IgY antibodies to each antigen evaluated by ELISA. In the case of the viral antigens, ELISA antibody (Ab) titers are correlated with protection against infection in calves experimentally challenged with RVA and CoV (Bok M, et al., Passive immunity to control bovine coronavirus diarrhea in a dairy herd in Argentina, 2017), (Vega C, et al., Vet Immunol Immunopathol, 142:156-69, 2011), (Vega C, et al., Res Vet Sci, 103:1-10, 2015). To evaluate the efficiency in dairy farms, thirty newborn Holstein calves were randomly assigned to IgY DNT or control groups and treatment initiated after colostrum intake and gut closure. Calves in the IgY DNT group received 20 g of the oral passive treatment in 2 L of milk twice a day during the first 2 weeks of life. Animals were followed until 3 weeks of age and diarrhea due to natural exposure to infectious agents was recorded during all the experimental time. Results: Results demonstrate that the oral administration of IgY DNT during the first 2 weeks of life to newborn calves caused a delay in diarrhea onset and significantly reduced its severity and duration compared with untreated calves. Animals treated with IgY DNT showed a trend towards a delay in RVA infection with significantly shorter duration and virus shedding compared to control calves. Conclusions: This indicates that IgY DNT is an effective product to complement current preventive strategies against neonatal calf diarrhea in dairy farms. Furthermore, to our knowledge, this is the only biological product available for the prevention of virus-associated neonatal calf diarrhea.
Fil: Vega, Celina Guadalupe. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina
Fil: Bok, Marina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina
Fil: Ebinger, Maren. No especifíca;
Fil: Rocha, Lucia Alejandra. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina
Fil: Rivolta, Alejandra Antonella. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina
Fil: González Thomas, Valeria. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina
Fil: Muntadas, Pilar. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina
Fil: D´Aloia, Ricardo. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina
Fil: Pinto, Verónica. No especifíca;
Fil: Parreño, Gladys Viviana. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina
Fil: Wigdorovitz, Andrés. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina - Materia
-
IGY ANTIBODY
INFECTIOUS NEONATAL CALF DIARRHEA
PASSIVE TREATMENT
ROTAVIRUS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/145962
Ver los metadatos del registro completo
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A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farmsVega, Celina GuadalupeBok, MarinaEbinger, MarenRocha, Lucia AlejandraRivolta, Alejandra AntonellaGonzález Thomas, ValeriaMuntadas, PilarD´Aloia, RicardoPinto, VerónicaParreño, Gladys VivianaWigdorovitz, AndrésIGY ANTIBODYINFECTIOUS NEONATAL CALF DIARRHEAPASSIVE TREATMENTROTAVIRUShttps://purl.org/becyt/ford/4.4https://purl.org/becyt/ford/4Background: Neonatal diarrhea remains one of the main causes of morbi-mortality in dairy calves under artificial rearing. It is often caused by infectious agents of viral, bacterial, or parasitic origin. Cows vaccination and colostrum intake by calves during the first 6 h of life are critical strategies to prevent severe diarrhea but these are still insufficient. Here we report the field evaluation of a product based on IgY antibodies against group A rotavirus (RVA), coronavirus (CoV), enterotoxigenic Escherichia coli, and Salmonella sp. This product, named IgY DNT, has been designed as a complementary passive immunization strategy to prevent neonatal calf diarrhea. The quality of the product depends on the titers of specific IgY antibodies to each antigen evaluated by ELISA. In the case of the viral antigens, ELISA antibody (Ab) titers are correlated with protection against infection in calves experimentally challenged with RVA and CoV (Bok M, et al., Passive immunity to control bovine coronavirus diarrhea in a dairy herd in Argentina, 2017), (Vega C, et al., Vet Immunol Immunopathol, 142:156-69, 2011), (Vega C, et al., Res Vet Sci, 103:1-10, 2015). To evaluate the efficiency in dairy farms, thirty newborn Holstein calves were randomly assigned to IgY DNT or control groups and treatment initiated after colostrum intake and gut closure. Calves in the IgY DNT group received 20 g of the oral passive treatment in 2 L of milk twice a day during the first 2 weeks of life. Animals were followed until 3 weeks of age and diarrhea due to natural exposure to infectious agents was recorded during all the experimental time. Results: Results demonstrate that the oral administration of IgY DNT during the first 2 weeks of life to newborn calves caused a delay in diarrhea onset and significantly reduced its severity and duration compared with untreated calves. Animals treated with IgY DNT showed a trend towards a delay in RVA infection with significantly shorter duration and virus shedding compared to control calves. Conclusions: This indicates that IgY DNT is an effective product to complement current preventive strategies against neonatal calf diarrhea in dairy farms. Furthermore, to our knowledge, this is the only biological product available for the prevention of virus-associated neonatal calf diarrhea.Fil: Vega, Celina Guadalupe. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaFil: Bok, Marina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaFil: Ebinger, Maren. No especifíca;Fil: Rocha, Lucia Alejandra. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaFil: Rivolta, Alejandra Antonella. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaFil: González Thomas, Valeria. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; ArgentinaFil: Muntadas, Pilar. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; ArgentinaFil: D´Aloia, Ricardo. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; ArgentinaFil: Pinto, Verónica. No especifíca;Fil: Parreño, Gladys Viviana. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaFil: Wigdorovitz, Andrés. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; ArgentinaBioMed Central2020-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/145962Vega, Celina Guadalupe; Bok, Marina; Ebinger, Maren; Rocha, Lucia Alejandra; Rivolta, Alejandra Antonella; et al.; A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms; BioMed Central; BMC Veterinary Research; 16; 1; 7-2020; 1-91746-6148CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bmcvetres.biomedcentral.com/articles/10.1186/s12917-020-02476-3info:eu-repo/semantics/altIdentifier/doi/10.1186/s12917-020-02476-3info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:03Zoai:ri.conicet.gov.ar:11336/145962instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:09:03.869CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
title |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
spellingShingle |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms Vega, Celina Guadalupe IGY ANTIBODY INFECTIOUS NEONATAL CALF DIARRHEA PASSIVE TREATMENT ROTAVIRUS |
title_short |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
title_full |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
title_fullStr |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
title_full_unstemmed |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
title_sort |
A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms |
dc.creator.none.fl_str_mv |
Vega, Celina Guadalupe Bok, Marina Ebinger, Maren Rocha, Lucia Alejandra Rivolta, Alejandra Antonella González Thomas, Valeria Muntadas, Pilar D´Aloia, Ricardo Pinto, Verónica Parreño, Gladys Viviana Wigdorovitz, Andrés |
author |
Vega, Celina Guadalupe |
author_facet |
Vega, Celina Guadalupe Bok, Marina Ebinger, Maren Rocha, Lucia Alejandra Rivolta, Alejandra Antonella González Thomas, Valeria Muntadas, Pilar D´Aloia, Ricardo Pinto, Verónica Parreño, Gladys Viviana Wigdorovitz, Andrés |
author_role |
author |
author2 |
Bok, Marina Ebinger, Maren Rocha, Lucia Alejandra Rivolta, Alejandra Antonella González Thomas, Valeria Muntadas, Pilar D´Aloia, Ricardo Pinto, Verónica Parreño, Gladys Viviana Wigdorovitz, Andrés |
author2_role |
author author author author author author author author author author |
dc.subject.none.fl_str_mv |
IGY ANTIBODY INFECTIOUS NEONATAL CALF DIARRHEA PASSIVE TREATMENT ROTAVIRUS |
topic |
IGY ANTIBODY INFECTIOUS NEONATAL CALF DIARRHEA PASSIVE TREATMENT ROTAVIRUS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.4 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
Background: Neonatal diarrhea remains one of the main causes of morbi-mortality in dairy calves under artificial rearing. It is often caused by infectious agents of viral, bacterial, or parasitic origin. Cows vaccination and colostrum intake by calves during the first 6 h of life are critical strategies to prevent severe diarrhea but these are still insufficient. Here we report the field evaluation of a product based on IgY antibodies against group A rotavirus (RVA), coronavirus (CoV), enterotoxigenic Escherichia coli, and Salmonella sp. This product, named IgY DNT, has been designed as a complementary passive immunization strategy to prevent neonatal calf diarrhea. The quality of the product depends on the titers of specific IgY antibodies to each antigen evaluated by ELISA. In the case of the viral antigens, ELISA antibody (Ab) titers are correlated with protection against infection in calves experimentally challenged with RVA and CoV (Bok M, et al., Passive immunity to control bovine coronavirus diarrhea in a dairy herd in Argentina, 2017), (Vega C, et al., Vet Immunol Immunopathol, 142:156-69, 2011), (Vega C, et al., Res Vet Sci, 103:1-10, 2015). To evaluate the efficiency in dairy farms, thirty newborn Holstein calves were randomly assigned to IgY DNT or control groups and treatment initiated after colostrum intake and gut closure. Calves in the IgY DNT group received 20 g of the oral passive treatment in 2 L of milk twice a day during the first 2 weeks of life. Animals were followed until 3 weeks of age and diarrhea due to natural exposure to infectious agents was recorded during all the experimental time. Results: Results demonstrate that the oral administration of IgY DNT during the first 2 weeks of life to newborn calves caused a delay in diarrhea onset and significantly reduced its severity and duration compared with untreated calves. Animals treated with IgY DNT showed a trend towards a delay in RVA infection with significantly shorter duration and virus shedding compared to control calves. Conclusions: This indicates that IgY DNT is an effective product to complement current preventive strategies against neonatal calf diarrhea in dairy farms. Furthermore, to our knowledge, this is the only biological product available for the prevention of virus-associated neonatal calf diarrhea. Fil: Vega, Celina Guadalupe. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina Fil: Bok, Marina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina Fil: Ebinger, Maren. No especifíca; Fil: Rocha, Lucia Alejandra. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina Fil: Rivolta, Alejandra Antonella. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina Fil: González Thomas, Valeria. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina Fil: Muntadas, Pilar. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina Fil: D´Aloia, Ricardo. Ministerio de Agricultura, Ganadería, Pesca y Alimento. Servicio Nacional de Sanidad y Calidad Agroalimentaria; Argentina Fil: Pinto, Verónica. No especifíca; Fil: Parreño, Gladys Viviana. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina Fil: Wigdorovitz, Andrés. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigacion En Ciencias Veterinarias y Agronomicas. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit | Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Pque. Centenario. Instituto de Virologia E Innovaciones Tecnologicas. Grupo Vinculado Incuinta Al Ivit.; Argentina |
description |
Background: Neonatal diarrhea remains one of the main causes of morbi-mortality in dairy calves under artificial rearing. It is often caused by infectious agents of viral, bacterial, or parasitic origin. Cows vaccination and colostrum intake by calves during the first 6 h of life are critical strategies to prevent severe diarrhea but these are still insufficient. Here we report the field evaluation of a product based on IgY antibodies against group A rotavirus (RVA), coronavirus (CoV), enterotoxigenic Escherichia coli, and Salmonella sp. This product, named IgY DNT, has been designed as a complementary passive immunization strategy to prevent neonatal calf diarrhea. The quality of the product depends on the titers of specific IgY antibodies to each antigen evaluated by ELISA. In the case of the viral antigens, ELISA antibody (Ab) titers are correlated with protection against infection in calves experimentally challenged with RVA and CoV (Bok M, et al., Passive immunity to control bovine coronavirus diarrhea in a dairy herd in Argentina, 2017), (Vega C, et al., Vet Immunol Immunopathol, 142:156-69, 2011), (Vega C, et al., Res Vet Sci, 103:1-10, 2015). To evaluate the efficiency in dairy farms, thirty newborn Holstein calves were randomly assigned to IgY DNT or control groups and treatment initiated after colostrum intake and gut closure. Calves in the IgY DNT group received 20 g of the oral passive treatment in 2 L of milk twice a day during the first 2 weeks of life. Animals were followed until 3 weeks of age and diarrhea due to natural exposure to infectious agents was recorded during all the experimental time. Results: Results demonstrate that the oral administration of IgY DNT during the first 2 weeks of life to newborn calves caused a delay in diarrhea onset and significantly reduced its severity and duration compared with untreated calves. Animals treated with IgY DNT showed a trend towards a delay in RVA infection with significantly shorter duration and virus shedding compared to control calves. Conclusions: This indicates that IgY DNT is an effective product to complement current preventive strategies against neonatal calf diarrhea in dairy farms. Furthermore, to our knowledge, this is the only biological product available for the prevention of virus-associated neonatal calf diarrhea. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/145962 Vega, Celina Guadalupe; Bok, Marina; Ebinger, Maren; Rocha, Lucia Alejandra; Rivolta, Alejandra Antonella; et al.; A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms; BioMed Central; BMC Veterinary Research; 16; 1; 7-2020; 1-9 1746-6148 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/145962 |
identifier_str_mv |
Vega, Celina Guadalupe; Bok, Marina; Ebinger, Maren; Rocha, Lucia Alejandra; Rivolta, Alejandra Antonella; et al.; A new passive immune strategy based on IgY antibodies as a key element to control neonatal calf diarrhea in dairy farms; BioMed Central; BMC Veterinary Research; 16; 1; 7-2020; 1-9 1746-6148 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://bmcvetres.biomedcentral.com/articles/10.1186/s12917-020-02476-3 info:eu-repo/semantics/altIdentifier/doi/10.1186/s12917-020-02476-3 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
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BioMed Central |
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BioMed Central |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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