Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng spa |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/220756 |
Resumo: | A 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. |
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Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis)Pregnancy rate obtained with four hormonal protocols for fixed-Time artificial insemination in nulliparous water buffaloes (Bubalus bubalis)Fixed-Time artificial inseminationHormonal protocolsNulliparous buffaloesA 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.Instituto de Ciencia Animal, Apartado Postal 24Carretera de Tapaste y Autopista Nacional Universidad Agraria de la HabanaEmpresa Pecuaria Genética Bubalina El Cangre, El Cangre km 6 1/2Universidad Estatal Paulista. Campus de BotucatuInstituto de Ciencia AnimalUniversidad Agraria de la HabanaEmpresa Pecuaria Genética Bubalina El CangreUniversidad Estatal Paulista. Campus de BotucatuGallego, C.Alonso, J. C.López, R. GarcíaPadrón, E.Fraga, L. M.Méndez, MildredOba, Eunice2022-04-28T19:05:20Z2022-04-28T19:05:20Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article321-327Cuban Journal of Agricultural Science, v. 49, n. 3, p. 321-327, 2015.0864-0408http://hdl.handle.net/11449/2207562-s2.0-85007378367Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengspaCuban Journal of Agricultural Scienceinfo:eu-repo/semantics/openAccess2022-04-28T19:05:20Zoai:repositorio.unesp.br:11449/220756Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:38:30.398573Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) Pregnancy rate obtained with four hormonal protocols for fixed-Time artificial insemination in nulliparous water buffaloes (Bubalus bubalis) |
title |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
spellingShingle |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) Gallego, C. Fixed-Time artificial insemination Hormonal protocols Nulliparous buffaloes |
title_short |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
title_full |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
title_fullStr |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
title_full_unstemmed |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
title_sort |
Tasa de gestación obtenida con cuatro protocolos hormonales para la inseminación artificial a tiempo fijo en búfalas de río nulíparas (Bubalus bubalis) |
author |
Gallego, C. |
author_facet |
Gallego, C. Alonso, J. C. López, R. García Padrón, E. Fraga, L. M. Méndez, Mildred Oba, Eunice |
author_role |
author |
author2 |
Alonso, J. C. López, R. García Padrón, E. Fraga, L. M. Méndez, Mildred Oba, Eunice |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Instituto de Ciencia Animal Universidad Agraria de la Habana Empresa Pecuaria Genética Bubalina El Cangre Universidad Estatal Paulista. Campus de Botucatu |
dc.contributor.author.fl_str_mv |
Gallego, C. Alonso, J. C. López, R. García Padrón, E. Fraga, L. M. Méndez, Mildred Oba, Eunice |
dc.subject.por.fl_str_mv |
Fixed-Time artificial insemination Hormonal protocols Nulliparous buffaloes |
topic |
Fixed-Time artificial insemination Hormonal protocols Nulliparous buffaloes |
description |
A 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. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2022-04-28T19:05:20Z 2022-04-28T19:05:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Cuban Journal of Agricultural Science, v. 49, n. 3, p. 321-327, 2015. 0864-0408 http://hdl.handle.net/11449/220756 2-s2.0-85007378367 |
identifier_str_mv |
Cuban Journal of Agricultural Science, v. 49, n. 3, p. 321-327, 2015. 0864-0408 2-s2.0-85007378367 |
url |
http://hdl.handle.net/11449/220756 |
dc.language.iso.fl_str_mv |
eng spa |
language |
eng spa |
dc.relation.none.fl_str_mv |
Cuban Journal of Agricultural Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
321-327 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128957861593088 |