Effect of heat stress on follicular development and luteolysis in Honstein cows, role of LH during induced luteolysis and characterization of luteal sensitivity to PGF2± during the estrous cycle

• Grant number: 12/18297-7
• Support Opportunities: Regular Research Grants
• Duration: March 01, 2013 - February 29, 2016
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Animal Reproduction
• Principal Investigator: João Carlos Pinheiro Ferreira
• Grantee: João Carlos Pinheiro Ferreira
• Host Institution: Faculdade de Medicina Veterinária e Zootecnia (FMVZ). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

This project will be divided into four experiments. In the study I will be assessed the effects of heat stress on follicular development during the first two follicular waves in Holstein cows and the expression of fibroblast growth factors (FGFs) associated with survival (dominance - FGFs 1 e 2) and follicular regression (atresia - FGFs 16, 17, 18 e 20) during these waves, in study II will be investigated the role of LH in the recovery of P4 luteal secretion capacity after the onset of luteolysis with cloprostenol in D6 of the estrous cycle. In the Study III will be studied the sensitivity of the CL during its early development (D7) and maturity (D12) to the action of sub-doses of cloprostenol and in the study IV will be monitored the effect of heat stress on intraluteal gene expression during cloprostenol-induced luteolysis in Holstein cows. In all studies the animals are subjected to estrus synchronization and later accompanied by transrectal ultrasonography, hormonal assays and gene expression investigation of factors related to follicular development and luteolysis. (AU)

Scientific publications

(6)

(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)

TREVISOL, EDUARDO; FERREIRA, JAIR CAMARGO; ACKERMANN, CAMILA LOUISE; DESTRO, FLAVIA CAROLINE; MARQUES FILHO, WOLFF CAMARGO; CARMAGOS, ALINE SOUZA; BIEHL, MARCOS VINICIUS; DO AMARAL, JACKSON BARROS; DE FIGUEIREDO PANTOJA, JOSE CARLOS; SARTORI, ROBERTO; et al. Luteal changes after treatment with sub-luteolytic doses of prostaglandin (cloprostenol sodium) in cattle. Animal Reproduction Science, v. 153, p. 8-12, FEB 2015. (12/18297-7, 11/20449-7)

FERRAZZA, RODRIGO DE ANDRADE; MOGOLLON GARCIA, HENRY DAVID; VALLEJO ARISTIZABAL, VIVIANA HELENA; NOGUEIRA, CAMILLA DE SOUZA; VERISSIMO, CECILIA JOSE; SARTORI, JOSE ROBERTO; SARTORI, ROBERTO; PINHEIRO FERREIR, JOAO CARLOS. Thermoregulatory responses of Holstein cows exposed to experimentally induced heat stress. Journal of Thermal Biology, v. 66, p. 68-80, MAY 2017. (12/18297-7, 13/20083-8)

DALANEZI, FELIPE MORALES; MOGOLLON GARCIA, HENRY DAVID; FERRAZZA, RODRIGO DE ANDRADE; FRANCHI, FERNANDA FAGALI; FONTES, PATRICIA KUBO; DE SOUZA CASTILHO, ANTHONY CESAR; GOUVEIA NOGUEIRA, MARCELO FABIO; DOS SANTOS SCHMIDT, ELIZABETH MOREIRA; SARTORI, ROBERTO; PINHEIRO FERREIRA, JOAO CARLOS. Extracellular vesicles of follicular fluid from heat-stressed cows modify the gene expression of in vitro-matured oocytes. Animal Reproduction Science, v. 205, p. 94-104, JUN 2019. (12/18297-7)

FERRAZZA, RODRIGO DE ANDRADE; MOGOLLON GARCIA, HENRY DAVID; DOS SANTOS SCHMIDT, ELIZABETH MOREIRA; CARMICHAEL, MONIKA MIHM; DE SOUZA, FABIANA FERREIRA; BURCHMORE, RICHARD; SARTORI, ROBERTO; ECKERSALL, PETER DAVID; PINHEIRO FERREIRA, JOAO CARLOS. Quantitative proteomic profiling of bovine follicular fluid during follicle development. BIOLOGY OF REPRODUCTION, v. 97, n. 6, p. 835-849, DEC 2017. (12/18297-7, 13/20083-8, 14/21257-2)

TREVISOL, E.; MOGOLLON GARCIA, H. D.; ACKERMANN, C. L.; LACERDA, W.; PIRES, R. M. L.; LAUFER-AMORIN, R.; CARVALHO, R. F.; FRANCHI, F. F.; CASTILHO, A. C. S.; RIZZOTO, G.; et al. Partial luteolysis during early diestrus in cattle downregulates VEGFA expression and reduces large luteal cell and corpus luteum sizes and plasma progesterone concentration. Theriogenology, v. 158, p. 188-195, DEC 2020. (11/20449-7, 12/18297-7)

MOGOLLON, H. D. G.; FERRAZZA, R. A.; VALLEJO, V. H.; DESTRO, F. C.; OCHOA, J. C.; NOGUEIRA, C.; CARVALHO, R. F.; MORAES, L. N.; RIZZOTO, G.; SARTORI, R.; et al. Short communication: Heat stress does not affect induced luteolysis in Holstein cows. JOURNAL OF DAIRY SCIENCE, v. 103, n. 6, p. 5629-5633, JUN 2020. (12/18297-7, 11/20449-7)