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A review of the ovarian synchronization programs based on the use of gonadotrophin releasing hormone and prostaglandin F2α for dairy and beef heifers

Publicado en:Itea-Informacion Tecnica Economica Agraria. 115 (4): 326-341 - 2019-12-01 115(4), doi: 10.12706/itea.2019.002

Sanz A;

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Alberta Agr & Forestry, Livestock Syst Sect, Edmonton, AB, Canada - Autor o Coautor
Alberta Agriculture and Rural Development - Autor o Coautor
Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
Total - Financiador
Univ Zaragoza, Ctr Invest & Tecnol Agroalimentaria Aragon CITA, IA2, CITA, Zaragoza, Spain - Autor o Coautor
Universidad de Zaragoza - Autor o Coautor
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Resúmen

Resúmen: © 2019, Asociacion Interprofesional para el Desarrollo Agrario. All rights reserved. Artificial insemination has been utilized in dairy cattle for decades, but the adoption of this technique has been low in the beef industry. Ovarian synchronization protocols that allow for timed artificial insemination are attractive because estrus detection is not required, becoming a very useful tool to improve the overall reproductive efficiency of commercial herds. Producers should seek advice from a specialist, who can recommend the most appropriate protocols for each category of animal and for each herd, taking into account that the results obtained in heifers have been more variable than in adult cows. In this publication, we review the ovarian synchronization protocols based on gonadotrophin releasing hormone (GnRH) and prostaglandin F2α (PGF) for dairy and beef heifers, as well as several modifications that have been proposed, to enhance pregnancy rates.

Palabras clave: 1st insemination; 5-day; Cattle; Estrus detection; Fixed-time; Gnrh; Ovulation; Pregnancy rates; Protocol; Rearing; Reproduction; Reproductive-performance; Time artificial-insemination; Timed artificial insemination

Indicios de calidad

WoS Scopus by Scimago
Best Categ.AgronomyVeterinary (Miscellaneous)
WoSScopus by ScimagoSPIFecytAgaurDialnetCircCapesMiar
IF0.5630.183-0.0011.000
Rank77/89132/157
QQ4Q3-Q1-Q4BB2
DD9D9-
TT3T3
PP14P85
Index ERIC-
Index Emergin-
Index AHCI-