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dc.contributor.advisorÁlava Cobeña, Jorge
dc.contributor.authorRizzo Jordán, Katherine Jetzabel
dc.date.accessioned2023-11-01T15:41:55Z
dc.date.available2023-11-01T15:41:55Z
dc.date.issued2023
dc.identifier.urihttp://dspace.utb.edu.ec/handle/49000/14962
dc.descriptionPractically the support of animal production is reproduction, which is why several assisted reproduction techniques have been perfected and developed, such as embryo transfer. Through this biotechnology it is possible to increase the economic performance of farms, since it allows obtaining a large number of calves from genetically superior animals. The purpose of embryo transfer programs is to obtain the greatest number of embryos in a single estrous cycle, for which ovarian stimulation of the donor cow is carried out with the objective of producing several oocytes, compared to the first ovulation characteristic of the species. For ET to be successful, it is important to select and manage the animals that will fulfill their function as donors, recipients and studs, which is why the manager must be trained in the correct selection. To carry out the ET process, there are several protocols that are used for the superovulation of donors, with which the aim is to obtain the greatest number of viable oocytes to be fertilized, then collect transferable embryos with a high chance of producing pregnancy. Embryo transfer through the surgical method has stopped being carried out, since the non-surgical method is the one chosen, this being where the embryo is deposited in the upper portion of the uterine horn and ipsilateral to the ovary in which it is located. The corpus luteum. The percentage of pregnancy rate in recipient cows with frozen embryos was deduced that 33.33% remained pregnant, while 66.66% did not respond to the embryo transfer.es_ES
dc.descriptionPractically the support of animal production is reproduction, which is why several assisted reproduction techniques have been perfected and developed, such as embryo transfer. Through this biotechnology it is possible to increase the economic performance of farms, since it allows obtaining a large number of calves from genetically superior animals. The purpose of embryo transfer programs is to obtain the greatest number of embryos in a single estrous cycle, for which ovarian stimulation of the donor cow is carried out with the objective of producing several oocytes, compared to the first ovulation characteristic of the species. For ET to be successful, it is important to select and manage the animals that will fulfill their function as donors, recipients and studs, which is why the manager must be trained in the correct selection. To carry out the ET process, there are several protocols that are used for the superovulation of donors, with which the aim is to obtain the greatest number of viable oocytes to be fertilized, then collect transferable embryos with a high chance of producing pregnancy. Embryo transfer through the surgical method has stopped being carried out, since the non-surgical method is the one chosen, this being where the embryo is deposited in the upper portion of the uterine horn and ipsilateral to the ovary in which it is located. The corpus luteum. The percentage of pregnancy rate in recipient cows with frozen embryos was deduced that 33.33% remained pregnant, while 66.66% did not respond to the embryo transfer.es_ES
dc.description.abstractPrácticamente el sustento de la producción animal es la reproducción, es por esto que se han perfeccionado y desarrollado varias técnicas de reproducción asistida, tal es el caso de la transferencia de embriones. Por medio de esta biotecnología es posible el poder incrementar el rendimiento económico de las explotaciones, ya que permite conseguir un gran número de terneros de animales genéticamente superior. La finalidad que tiene los programas de transferencia de embriones es obtener la mayor cantidad de embriones en un solo ciclo estral, por lo cual se lleva a cabo la estimulación ovárica de la vaca donante con el objetivo de la producción de varios ovocitos, en comparación de la primera ovulación característica de la especie. Para que la TE tenga éxito es importante la selección y el manejo de los animales que cumplirán su función como donadoras, receptoras y semental, es por eso que el encargado debe estar capacitado para la correcta elección. Para llevar a cabo el proceso de TE existen varios protocolos que se usan para la superovulación de las donadoras, con el cual se busca obtener la mayor cantidad de ovocitos viables para ser fertilizados, luego recolectar embriones transferibles con elevadas posibilidades de producir preñez. La transferencia embrionaria a través del método quirúrgico se ha dejado de llevar a cabo, pues el método no quirúrgico es el elegido, siendo en este en donde el embrión es depositado en la porción superior del cuerno uterino e ipsilateral al ovario en el que se encuentra el cuerpo lúteo. El porcentaje de la taza de preñez en vacas receptoras con embriones congelados se dedujo que el 33.33 % quedaron en gestación, mientras que un 66.66 % no respondieron a la transferencia de embriones.es_ES
dc.format.extent26 p.es_ES
dc.language.isoeses_ES
dc.publisherBABAHOYO: UTB, 2023es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Ecuador*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/ec/*
dc.subjectTransferencia de embrioneses_ES
dc.subjectMejoramiento genéticoes_ES
dc.subjectGanado bovinoes_ES
dc.subjectDonanteses_ES
dc.titleLa transferencia de embriones para el mejoramiento genético en Ganado Bovinoes_ES
dc.typebachelorThesises_ES


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