Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis
Campylobacter fetus is a gram-negative motile bacterium, with two subspecies relevant to cattle health: C. fetus subsp. venerealis (Cfv) and C. fetus subsp. fetus (Cff). Both subspecies are associated with reproductive losses in cattle. In this study, we evaluated the identification of C. fetus for...
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| Format: | Artículo |
| Language: | Inglés |
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Springer Nature
2023
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| Online Access: | http://hdl.handle.net/20.500.12123/14402 https://link.springer.com/article/10.1007/s42770-022-00892-1 https://doi.org/10.1007/s42770-022-00892-1 |
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| author | García, Juan Agustín Farace, Pablo Daniel Gioffre, Andrea Morsella, Claudia Graciela Mendez, Maria Alejandra Acuña, Joaquín Aller Atucha, Juan Florencio Signorini Porchiett, Marcelo Lisandro Paolicchi, Fernando |
| author_browse | Acuña, Joaquín Aller Atucha, Juan Florencio Farace, Pablo Daniel García, Juan Agustín Gioffre, Andrea Mendez, Maria Alejandra Morsella, Claudia Graciela Paolicchi, Fernando Signorini Porchiett, Marcelo Lisandro |
| author_facet | García, Juan Agustín Farace, Pablo Daniel Gioffre, Andrea Morsella, Claudia Graciela Mendez, Maria Alejandra Acuña, Joaquín Aller Atucha, Juan Florencio Signorini Porchiett, Marcelo Lisandro Paolicchi, Fernando |
| author_sort | García, Juan Agustín |
| collection | INTA Digital |
| description | Campylobacter fetus is a gram-negative motile bacterium, with two subspecies relevant to cattle health: C. fetus subsp. venerealis (Cfv) and C. fetus subsp. fetus (Cff). Both subspecies are associated with reproductive losses in cattle. In this study, we evaluated the identification of C. fetus for the diagnosis of bovine campylobacteriosis through bacteriological culture, direct immunofluorescence (DIF) and molecular tests in preputial smegma (PS) samples of three Angus bulls challenged with Cfv, Cfv biovar intermedius (Cfvi) or Cff, respectively, in an experiment imitating the natural infection. Two DNA extraction protocols were tested (in-house thermal extraction and commercial kit). Aspiration and scraping collection for PS were compared by conventional tests. Additionally, bacteremia was also evaluated in blood samples. Bulls were challenged by natural mating with heifers that had been experimentally infected with C. fetus subspecies; which led to infection. The Cfv- and Cfvi-bulls were positive for at least 9 months. Although Cff is not considered a venereal strain, in this study it was transmissible to bull from heifers experimentally infected, as evidenced by its colonization and persistence in the preputial cavity for 5 to 6 months. This finding suggests a potential risk of dissemination within herds. The results obtained by bacteriological culture or direct immunofluorescence (DIF) showed no significant differences, regardless the sampling device used (aspiration with Cassou pipette, metal and plastic scraper). C. fetus qPCR, on the other hand, yielded better results with an in-house DNA extraction method than with a commercial kit (75% vs 66.6%). Furthermore, qPCR diagnosis was more efficient than culture (66.6%) or DIF (56%). Bacteremia in whole blood samples was negative by qPCR and bacteriological culture in all samples. Altogether, this study demonstrated the transmission of Cff from heifers to bull and also showed that PCR-based methods are promising for the diagnosis of Bovine Genital Campylobacteriosis from clinical samples of PS. |
| format | Artículo |
| id | INTA14402 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer Nature |
| publisherStr | Springer Nature |
| record_format | dspace |
| spelling | INTA144022023-04-04T21:22:57Z Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis García, Juan Agustín Farace, Pablo Daniel Gioffre, Andrea Morsella, Claudia Graciela Mendez, Maria Alejandra Acuña, Joaquín Aller Atucha, Juan Florencio Signorini Porchiett, Marcelo Lisandro Paolicchi, Fernando Rumiante Toro Campilobacteriosis Diagnóstico Enfermedades de los Animales Ruminants Bulls Campylobacteriosis Diagnosis Animal Diseases Campylobacter fetus is a gram-negative motile bacterium, with two subspecies relevant to cattle health: C. fetus subsp. venerealis (Cfv) and C. fetus subsp. fetus (Cff). Both subspecies are associated with reproductive losses in cattle. In this study, we evaluated the identification of C. fetus for the diagnosis of bovine campylobacteriosis through bacteriological culture, direct immunofluorescence (DIF) and molecular tests in preputial smegma (PS) samples of three Angus bulls challenged with Cfv, Cfv biovar intermedius (Cfvi) or Cff, respectively, in an experiment imitating the natural infection. Two DNA extraction protocols were tested (in-house thermal extraction and commercial kit). Aspiration and scraping collection for PS were compared by conventional tests. Additionally, bacteremia was also evaluated in blood samples. Bulls were challenged by natural mating with heifers that had been experimentally infected with C. fetus subspecies; which led to infection. The Cfv- and Cfvi-bulls were positive for at least 9 months. Although Cff is not considered a venereal strain, in this study it was transmissible to bull from heifers experimentally infected, as evidenced by its colonization and persistence in the preputial cavity for 5 to 6 months. This finding suggests a potential risk of dissemination within herds. The results obtained by bacteriological culture or direct immunofluorescence (DIF) showed no significant differences, regardless the sampling device used (aspiration with Cassou pipette, metal and plastic scraper). C. fetus qPCR, on the other hand, yielded better results with an in-house DNA extraction method than with a commercial kit (75% vs 66.6%). Furthermore, qPCR diagnosis was more efficient than culture (66.6%) or DIF (56%). Bacteremia in whole blood samples was negative by qPCR and bacteriological culture in all samples. Altogether, this study demonstrated the transmission of Cff from heifers to bull and also showed that PCR-based methods are promising for the diagnosis of Bovine Genital Campylobacteriosis from clinical samples of PS. EEA Balcarce Fil: García, Juan A. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Farace, Pablo Daniel. Instituto Nacional de Tecnología Agropecuaria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Agrobiotecnología y Biología Molecular; Argentina. Fil: Gioffré, Andrea. Instituto Nacional de Tecnología Agropecuaria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Agrobiotecnología y Biología Molecular; Argentina. Fil: Morsella, Claudia Graciela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Méndez, María Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Acuña, Joaquín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Aller Atucha, Juan Florencio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Signorini Porchiett, Marcelo Lisandro. Instituto Nacional de Tecnología Agropecuaria (INTA); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Investigación de la Cadena Láctea; Argentina. Fil: Paolicchi, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina. Fil: Paolicchi, Fernando. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. 2023-04-04T21:13:44Z 2023-04-04T21:13:44Z 2023-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14402 https://link.springer.com/article/10.1007/s42770-022-00892-1 1678-4405 (online) 1517-8382(print) https://doi.org/10.1007/s42770-022-00892-1 eng info:eu-repograntAgreement/INTA/2019-PD-E5-I103-001/2019-PD-E5-I103-001/AR./Desarrollo de tecnologías diagnósticas y estudios epidemiológicos para el control de enfermedades que afectan la producción animal y la salud pública info:eu-repograntAgreement/INTA/2019-PD-E5-I105-001/2019-PD-E5-I105-001/AR./Patógenos animales: su interacción con el hospedador y el medio ambiente. Impacto en productividad, ecosistemas, sanidad animal y salud pública en el marco “Una Salud” info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Nature Brazilian Journal of Microbiology 54 : 459–467 (March 2023) |
| spellingShingle | Rumiante Toro Campilobacteriosis Diagnóstico Enfermedades de los Animales Ruminants Bulls Campylobacteriosis Diagnosis Animal Diseases García, Juan Agustín Farace, Pablo Daniel Gioffre, Andrea Morsella, Claudia Graciela Mendez, Maria Alejandra Acuña, Joaquín Aller Atucha, Juan Florencio Signorini Porchiett, Marcelo Lisandro Paolicchi, Fernando Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title | Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title_full | Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title_fullStr | Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title_full_unstemmed | Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title_short | Bovine campylobacteriosis in bulls: insights in the conventional and molecular diagnosis |
| title_sort | bovine campylobacteriosis in bulls insights in the conventional and molecular diagnosis |
| topic | Rumiante Toro Campilobacteriosis Diagnóstico Enfermedades de los Animales Ruminants Bulls Campylobacteriosis Diagnosis Animal Diseases |
| url | http://hdl.handle.net/20.500.12123/14402 https://link.springer.com/article/10.1007/s42770-022-00892-1 https://doi.org/10.1007/s42770-022-00892-1 |
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