Análisis de la sincronización de celo con benzoato de estradiol y progesterona en hembras bovinas para carnes
| dc.contributor.advisor | Zambrano Moreira, Ricardo Ramón | |
| dc.contributor.author | Villota Ruiz, Kevin Joel | |
| dc.date.accessioned | 2022-04-29T21:37:15Z | |
| dc.date.available | 2022-04-29T21:37:15Z | |
| dc.date.issued | 2022 | |
| dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/11351 | |
| dc.description | The purpose of this bibliographic work was to analyze the estrus synchronization methods with the use of estradiol benzoate and progesterone in beef cattle. The qualitative and exploratory method was used in databases published in indexed journals, scientific articles and web pages. Ecuador has a cattle herd of 4.5 million head of cattle of different breeds. the majority of heads corresponded to females older than 2 years (42%), followed by bulls between 1 and 2 years old (28%). The largest production of beef cattle is located in the provinces of Manabí, Esmeralda, Santo Domingo de los Tsáchilas and Guayas. The evaluation of the body condition must be carried out at weaning, 90 days before the calving of the cow and at the breeding season. In the bovine genetic improvement plan, developed by the Ministry of Agriculture, Livestock, Aquaculture and Fisheries of the province of Oro, year 2015, heat synchronizers (CIDR intravaginal device), prostaglandin and estradiol benzoate were used. 440 cows were inseminated at a fixed time, of which 198 became pregnant with 45% gestation. The synchronization of heat or estrus, using estradiol benzoate and progesterone in cattle for meat in artificial insemination programs, conception percentages of 51% and pregnancy rates of 60 and 70% are obtained. synchronization protocols with Co-Synch intravaginal devices, higher pregnancy rates (42%) are obtained. With estradiol cypionate, pregnancy rates are lower (39%). Estrus presentation in cows with estradiol is higher (95%) in relation to Co-Synch (85%). | es_ES |
| dc.description | The purpose of this bibliographic work was to analyze the estrus synchronization methods with the use of estradiol benzoate and progesterone in beef cattle. The qualitative and exploratory method was used in databases published in indexed journals, scientific articles and web pages. Ecuador has a cattle herd of 4.5 million head of cattle of different breeds. the majority of heads corresponded to females older than 2 years (42%), followed by bulls between 1 and 2 years old (28%). The largest production of beef cattle is located in the provinces of Manabí, Esmeralda, Santo Domingo de los Tsáchilas and Guayas. The evaluation of the body condition must be carried out at weaning, 90 days before the calving of the cow and at the breeding season. In the bovine genetic improvement plan, developed by the Ministry of Agriculture, Livestock, Aquaculture and Fisheries of the province of Oro, year 2015, heat synchronizers (CIDR intravaginal device), prostaglandin and estradiol benzoate were used. 440 cows were inseminated at a fixed time, of which 198 became pregnant with 45% gestation. The synchronization of heat or estrus, using estradiol benzoate and progesterone in cattle for meat in artificial insemination programs, conception percentages of 51% and pregnancy rates of 60 and 70% are obtained. synchronization protocols with Co-Synch intravaginal devices, higher pregnancy rates (42%) are obtained. With estradiol cypionate, pregnancy rates are lower (39%). Estrus presentation in cows with estradiol is higher (95%) in relation to Co-Synch (85%). | es_ES |
| dc.description.abstract | El propósito de este trabajo bibliográfico fue analizar los métodos de sincronización de celo con el uso de benzoato de estradiol y progesterona en bovinos para carne. Se utilizo el método cualitativo y exploratorio en bases de datos publicados en revistas indexadas, artículos científicos y páginas web. Ecuador cuenta con un hato ganadero de 4,5 millones de cabezas de ganado de diferentes razas. la mayor parte de cabezas correspondía a hembras mayores de 2 años (42%), seguido por toretes de 1 a 2 años (28%). La mayor producción de ganado de carne se sitúa en la provincia de Manabí, Esmeralda, Santo Domingo de los Tsáchilas y Guayas. La evaluación de la condición corporal, debe realizarse al destete, 90 días al preparto de la vaca y a la época de empadre. En el plan de mejoramiento genético bovino, desarrollado por el Ministerio de Agricultura, Ganadería, Acuacultura y Pesca de la provincia del Oro, año 2015. Se utilizo sincronizadores de celo (dispositivo intravaginal CIDR), prostaglandina y benzoato de estradiol. 440 vacas fueron inseminadas a tiempo fijo, de la cuales 198 quedaron preñadas con un 45 % de gestación. La sincronización de celo o estro, utilizando benzoato de estradiol y progesterona en bovinos para carne en los programas de inseminación artificial, se obtienen porcentajes de concepción del 51 % y preñes del 60 y 70 %. los protocolos de sincronización con dispositivos intravaginales Co-Synch, se obtienen mayores tasas de preñez (42%). Con cipionato de estradiol los porcentajes de preñez es menor (39%). La presentación de celo en las vacas con estradiol es mayor (95%) en relación al de Co-Synch (85%). | es_ES |
| dc.format.extent | 42 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 | Bovinos | es_ES |
| dc.subject | Sincronizante | es_ES |
| dc.subject | Protocolos | es_ES |
| dc.subject | Estradiol | es_ES |
| dc.subject | Preñez | es_ES |
| dc.title | Análisis de la sincronización de celo con benzoato de estradiol y progesterona en hembras bovinas para carnes | es_ES |
| dc.type | bachelorThesis | es_ES |
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Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 Ecuador