Superovulation and embryo transfer in Bos indicus cattle

dc.creatorBaruselli, Pietro
dc.creatorDe Sá Filho, Manoel
dc.creatorMartins, Claudiney M.
dc.creatorNasser, Luiz F.
dc.creatorNogueira, Marcelo F.G.
dc.creatorBarros, Ciro M.
dc.creatorBó, Gabriel A.
dc.date2006-01-31
dc.date.accessioned2023-08-30T17:09:19Z
dc.date.available2023-08-30T17:09:19Z
dc.identifierhttp://pa.bibdigital.ucc.edu.ar/4006/1/A_Baruselli_DeSaFilho_Martins_Nasser_Nogueira_Barros_B%C3%B3.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8539735
dc.descriptionCompared to Bos taurus breeds, Bos indicus breeds of cattle present several differences in reproductive physiology. Follicular diameter at deviation and at the time of ovulatory capability are smaller in B. indicus breeds. Furthermore, B. indicus breeds have a greater sensitivity to gonadotropins, a shorter duration of estrus, and more often express estrus during the night. These differences must be considered when setting up embryo transfer programs for B. indicus cattle. In recent studies, we evaluated follicular dynamics and superovulatory responses in B. indicus donors with the objective of implementing fixed-time AI protocols in superstimulated donors. Protocols using estradiol and progesterone/progestrogen releasing devices to control follicular wave emergence were as efficacious as in B. taurus cattle, allowing the initiation of superstimulatory treatments (with lower dosages of FSH than in B. taurus donors) at a self-appointed time. Furthermore, results presented herein indicate that delaying the removal of progesterone/progestogen-releasing devices, combined with the administration of GnRH or pLH 12 h after the last FSH injection, results in synchronous ovulations, permitting the application of fixed-time AI of donors without the necessity of estrus detection and without compromising the results.
dc.descriptionFil: Baruselli, Pietro. Departament of Animal Reproduction, FMVZ-USP, CEP 05508-000, Sao Paulo-SP, R. Prof. Orlando Marques Paiva, 87, Brazil
dc.descriptionFil: De Sá Filho, Manoel. Departament of Animal Reproduction, FMVZ-USP, CEP 05508-000, Sao Paulo-SP, R. Prof. Orlando Marques Paiva, 87, Brazil
dc.descriptionFil: Martins, Claudiney M. Departament of Animal Reproduction, FMVZ-USP, CEP 05508-000, Sao Paulo-SP, R. Prof. Orlando Marques Paiva, 87, Brazil
dc.descriptionFil: Nasser, Luiz F. Departament of Animal Reproduction, FMVZ-USP, CEP 05508-000, Sao Paulo-SP, R. Prof. Orlando Marques Paiva, 87, Brazil
dc.descriptionFil: Nogueira, Marcelo F.G. Departamento de Farmacología, Instituto de Biociências, UNESP, Botucatu-SP, Brazil
dc.descriptionFil: Barros, Ciro M. Departamento de Farmacología, Instituto de Biociências, UNESP, Botucatu-SP, Brazil
dc.descriptionFil: Bó, Gabriel A.Universidad Católica de Córdoba. Facultad de Ciencias Agropecuarias; Argentina
dc.formatapplication/pdf
dc.languagespa
dc.relationhttp://pa.bibdigital.ucc.edu.ar/4006/
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.theriogenology.2005.10.006
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.sourceBaruselli, Pietro ORCID: https://orcid.org/0000-0002-6773-4450 <https://orcid.org/0000-0002-6773-4450>, De Sá Filho, Manoel, Martins, Claudiney M., Nasser, Luiz F., Nogueira, Marcelo F.G., Barros, Ciro M. and Bó, Gabriel A. (2006) Superovulation and embryo transfer in Bos indicus cattle. Theriogenology, 65 (1). pp. 77-88. ISSN 0093-691X
dc.subjectSF Cultura de los animales
dc.titleSuperovulation and embryo transfer in Bos indicus cattle
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/acceptedVersion


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