Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis)

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Autor(es): dc.contributorInstituto de Ciencia Animal-
Autor(es): dc.contributorUniversidad Agraria de la Habana-
Autor(es): dc.contributorEmpresa Pecuaria Genética Bubalina El Cangre-
Autor(es): dc.contributorUniversidad Estatal Paulista. Campus de Botucatu-
Autor(es): dc.creatorGallego, C.-
Autor(es): dc.creatorAlonso, J. C.-
Autor(es): dc.creatorLópez, R. García-
Autor(es): dc.creatorPadrón, E.-
Autor(es): dc.creatorFraga, L. M.-
Autor(es): dc.creatorMéndez, Mildred-
Autor(es): dc.creatorOba, Eunice-
Data de aceite: dc.date.accessioned2022-08-04T22:06:05Z-
Data de disponibilização: dc.date.available2022-08-04T22:06:05Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2015-01-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/220756-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/220756-
Descrição: dc.descriptionA total of 120 nulliparous water buffaloes were used to evaluate the effect of different hormonal protocols with fixedtime artificial insemination on the pregnancy rate. Protocol 1 received 2.0 mg of estradiol benzoate and a progesterone intravaginal device for nine days. After the device removal, 0.5 mg of Prostaglandin F2α, 500 UI of equine chorionic gonadotropin and 0.5 mg of estradiol cypionate were applied. Protocol 2 was similar to 1, but without the chorionic gonadotrophin. In protocol 3, two doses of 0.5 mg of Prostaglandin F2α were injected, with an interval of 11d, and 0.5 mg of estradiol cypionate was added to the last dose. Protocol 4 was similar to 3, but, after 48h of the last Prostaglandin F2α, 0.01 mg of Buserelin Acetate was injected. Time-fixed artificial inseminations were performed between 56 and 58 h (protocols 1, 2 and 3) and between 20 and 24 h (protocol 4) after the last hormonal application. Pregnancy rates in protocol 1 (60.8%), 2 (50. 3 %) and 4 (57.3 %) were superior (P<0.05) to those of protocol 3 (16.0 %). The equine chorionic gonadotrophin had no influence on the increase or decrease of fertility. In the protocol with double doses of Prostaglandin F2α and estradiol cypionate, fertility decreased, but increased when the estradiol was substituted by Buserelin Acetate. It can be concluded that protocols 1, 2 and 3 synchronize the estrum and ovulation with good pregnancy rates, and it is possible to apply fixed-Time artificial insemination for increasing birth rate in herds and achieving economic benefits.-
Descrição: dc.descriptionInstituto de Ciencia Animal, Apartado Postal 24-
Descrição: dc.descriptionCarretera de Tapaste y Autopista Nacional Universidad Agraria de la Habana-
Descrição: dc.descriptionEmpresa Pecuaria Genética Bubalina El Cangre, El Cangre km 6 1/2-
Descrição: dc.descriptionUniversidad Estatal Paulista. Campus de Botucatu-
Formato: dc.format321-327-
Idioma: dc.languageen-
Idioma: dc.languagees-
Relação: dc.relationCuban Journal of Agricultural Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFixed-Time artificial insemination-
Palavras-chave: dc.subjectHormonal protocols-
Palavras-chave: dc.subjectNulliparous buffaloes-
Título: dc.titleTasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis)-
Título: dc.titlePregnancy rate obtained with four hormonal protocols for fixed-Time artificial insemination in nulliparous water buffaloes (Bubalus bubalis)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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