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Use of different doses of estradiol benzoate in synchronization and resynchronization at 14 days after FTAI in Bos indicus beef cows

Grant number: 19/07805-0
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): May 01, 2019
Effective date (End): November 30, 2020
Field of knowledge:Agronomical Sciences - Veterinary Medicine - Animal Reproduction
Principal Investigator:Guilherme Pugliesi
Grantee:Amanda Guimarães da Silva
Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/10606-9 - Innovations in the early pregnancy diagnosis in cattle, AP.JP

Abstract

The purpose of the present proposal is to identify the effect of 3 different doses of estradiol benzoate (EB, 1, 1,5 and 2 mg) on the follicular dynamics of Zebu cows. In a second experiment, the effects of previously mentioned doses of EB on luteal dynamics when used in a resynchronization protocol at 14 days after IATF will be evaluated by B-mode and Color-Doppler ultrasonography and plasma progesterone dosage. In a third experiment, the dose of better performance in the two previous experiments will be selected to evaluate its efficiency in resynchronization protocols at 14 days post-TAI associated with the use of early diagnosis of pregnancy with Doppler ultrasonography in zebu beef cows. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SILVA, AMANDA GUIMARAES; PINTO, LEONARDO MARIN FERREIRA; SILVA, NADARK DE AMORIM; MATTOS, ANA CLARA DEGAN; AMBROSIO, PABLO HENRIQUE; DUARTE, KEILA MARIA RONCATO; ALVAREZ, RAFAEL HERRERA; PUGLIESI, GUILHERME. Comparison of three doses of estradiol benzoate for synchronization of follicular wave emergence in suckled Bos indicus beef cows. ANIMAL REPRODUCTION, v. 18, n. 3, . (15/10606-9, 19/07805-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SILVA, Amanda Guimarães da. Comparison of estradiol benzoate doses at beginning of the synchronization and early resynchronization of ovulation for timed- insemination in Bos indicus beef cows. 2021. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD) Pirassununga.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.