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Caracterización bibliográfica de Escherichia coli asociada a muerte de terneros en bovinos lecheros.
| dc.contributor.advisor | Sánchez Morán, Sara Susana | |
| dc.contributor.author | De La Gala Moreira, Tamar Melissa | |
| dc.date.accessioned | 2022-05-02T20:53:12Z | |
| dc.date.available | 2022-05-02T20:53:12Z | |
| dc.date.issued | 2022 | |
| dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/11424 | |
| dc.description | Bovine diarrhea is a limiting factor for livestock development in Ecuador and worldwide. The most important infectious agent of colibacillosis with the greatest influence in cattle ranches is the bacterium Echerichia coli, Echerichia coli is a large negative bacterium that was described for the first time in 1885 by the German bacteriologist Theodore von Escherich. It is a bacillus that reacts negatively to Gram stain (gram-negative), is facultatively anaerobic, motile by peritrichous flagella and is a microorganism that ferments glucose and lactose, is catalase positive, oxidase negative and reduces nitrates to nitrites. This described agent causes in the calf different affectations such as dehydration, alterations in its gastrointestinal tissues, weight loss, delays in puberty and reproduction, and in its development stage. If it is not treated in time by taking a protocol, the bacteria will cause the death of the calf, all due to the toxins secreted by the bacteria in the intestinal flora of the bovine, therefore, the losses can be very high for the cattle community and low calf production in Ecuador. This research is able to determine the antigenic infection process and the biochemical structure of Escherichia coli bacteria, the pathological effect and the preventive measures for its propagation based on articles and studies carried out. Taking into account the importance of the bacterium that affects other animal species including humans, it is highly zoonotic and the concern for the causes that it presents in the host and its consequence will be certain diseases, therefore, for the control of the bacterium will have to be considered by each country. | es_ES |
| dc.description | Bovine diarrhea is a limiting factor for livestock development in Ecuador and worldwide. The most important infectious agent of colibacillosis with the greatest influence in cattle ranches is the bacterium Echerichia coli, Echerichia coli is a large negative bacterium that was described for the first time in 1885 by the German bacteriologist Theodore von Escherich. It is a bacillus that reacts negatively to Gram stain (gram-negative), is facultatively anaerobic, motile by peritrichous flagella and is a microorganism that ferments glucose and lactose, is catalase positive, oxidase negative and reduces nitrates to nitrites. This described agent causes in the calf different affectations such as dehydration, alterations in its gastrointestinal tissues, weight loss, delays in puberty and reproduction, and in its development stage. If it is not treated in time by taking a protocol, the bacteria will cause the death of the calf, all due to the toxins secreted by the bacteria in the intestinal flora of the bovine, therefore, the losses can be very high for the cattle community and low calf production in Ecuador. This research is able to determine the antigenic infection process and the biochemical structure of Escherichia coli bacteria, the pathological effect and the preventive measures for its propagation based on articles and studies carried out. Taking into account the importance of the bacterium that affects other animal species including humans, it is highly zoonotic and the concern for the causes that it presents in the host and its consequence will be certain diseases, therefore, for the control of the bacterium will have to be considered by each country. | es_ES |
| dc.description.abstract | La diarrea bovina es un factor limitante del desarrollo ganadero en el Ecuador y a nivel mundial, el agente infeccioso más importante de la colibacilosis de mayor influencia en las ganaderías es la bacteria Echerichia coli, La Escherichia coli es una bacteria gran negativa que fue descrita por primea vez en 1885 por el bacteriólogo alemán Theodore von Escherich Esta bacteria produce vitaminas B y K. Es un bacilo que reacciona negativamente a la tinción de Gram (gramnegativo), es anaeróbico facultativo, móvil por flagelos peritricos y es un microorganismo que fermenta la glucosa y lactosa, son catalasa positiva, oxidasa negativa y reduce los nitratos a nitritos. Este agente descrito causa en el ternero diferentes afectaciones tales como la deshidratación, alteraciones en sus tejidos gastrointestinales, pérdida de peso, retrasos en pubertad y reproducción, y en su etapa de desarrollo. Si no es tratada a tiempo tomando un protocolo, la bacteria causará la muerte del ternero, todo se debe por las toxinas que secreta la bacteria en la flora intestinal del bovino, por ende, las perdidas pueden ser muy elevadas para la comunidad ganadera y baja producción de terneros en el Ecuador. Esta investigación logra determinar el proceso de infección antigénica y la estructura bioquímica de la bacteria Escherichia coli, el efecto patológico y las medidas preventivas para su propagación en base a artículos y estudios realizados. Tomando en cuenta la importante que tiene la bacteria que afecta hacia otras especies animales incluyendo a los humanos, es altamente zoonótica y la preocupación por las causas que presenta en el hospedador y su consecuencia serán ciertas enfermedades, por ende, para el control de la bacteria tendrán que ser consideras por cada País. | es_ES |
| dc.format.extent | 23 p. | es_ES |
| dc.language.iso | es | es_ES |
| dc.publisher | BABAHOYO: UTB, 2022 | es_ES |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | * |
| dc.subject | Escherichia coli | es_ES |
| dc.subject | Colibacilosis | es_ES |
| dc.subject | Ternero | es_ES |
| dc.subject | Bacteria | es_ES |
| dc.subject | Toxina | es_ES |
| dc.title | Caracterización bibliográfica de Escherichia coli asociada a muerte de terneros en bovinos lecheros. | es_ES |
| dc.type | bachelorThesis | es_ES |
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