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Biostimulation with the ram effect increases the embryo quality in superovulated ewes. Author(s): SCHMIDT, A. P. S.; ARRAIS, A. M.; BRANDÃO, F. Z.; BATISTA, R. I. T. P.; OLIVEIRA, M. E. F.; SOUZA-FABJAN, J. M. G.; FONSECA, J. F. da; UNGERFELD, R. The pulsatile release of luteinizing hormone (LH) induced by the male effect may play a beneficial role in embryonic viability during superovulation. The objective of the present study was to determin... ... Repository: BDPA Publication year: 2024
Duration of estrus and time of ovulation in superovulated Santa Inês ewes. Author(s): LIMA, J. T. M.; FONSECA, J. F. da; ESTEVES, L. V.; PENEIRAS, A. B. V.; LIMA, M. S. D.; BRANDÃO, F. Z. Abstract: The aim of this study was to determine the intervals between sponge removal and the onset of estrus, sponge removal and the first detected ovulation, and onset of estrus and the first ovulat... ... Repository: BDPA Publication year: 2013
Superovulation and transcervical embryo recovery in Lacaune ewes raised under tropical conditions. Author(s): SOUZA, G. N. de; FONSECA, J. F. da This study assessed two superovulatory treatments and the feasibility of transcervical embryo recovery in Lacaune ewes. Ewes (n=23) received medroxyprogesterone acetate sponges (60mg, Progespon®, Synt... ... Repository: BDPA Publication year: 2018
Transcervical embryo recovery in Lacaune ewes superovulated with different doses of FSH. Author(s): FONSECA, J. F. da This study assessed the effect of different FSH dosages for superovulation and the feasibility of transcervical embryo recovery in Lacaune ewes. Ewes (n = 2 5) received 60 mg medroxiprogesterone aceta... ... Repository: BDPA Publication year: 2018
Effect of superovulation protocol on quality and embryonic stage in Moxotó and Canindé goats. Author(s): SILVA, K. de M.; MONTEIRO, A. W. U.; FONSECA, J. F. da For the success of an embryo transfer program, it is necessary to achieve a great synchronization between the embryo donor and recipients. For this, hormonal protocols are commonly used, aiming at a g... ... Repository: BDPA Publication year: 2019
Three superovulation protocols for in vivo embryo production in Santa Inês sheep. Author(s): FONSECA, J. F. da Abstract: There is still no consensus regarding the best protocol for in vivo embryo production in sheep despite increasing studies in this area. Moreover, there is variability in the response of ewes... ... Repository: BDPA Publication year: 2022
Color Doppler ultrasound as a substitute to laparoscopy for the CL count in superovulated sheep. Author(s): PINTO, P. H. N.; BRAGANÇA, G. M.; LEITE, C. R.; SANTOS, G. B.; ALFRANDIQUE, V. A. P.; GONÇALVES, L. H. S.; BALARO, M. F. A.; FONSECA, J. F. da; BRANDÃO, F. Z. Abstract: This study aimed to evaluate the Color Doppler ultrasound as a substitute for laparoscopy for couting of corpora lutea (CL) in superovulated sheep. Twenty-five nulliparous Santa Ines ewes (1... ... Repository: BDPA Publication year: 2016
Correlations between biometrics parameteres and vascularization of corpora lutea and serum progesterone concentration in superovulated sheep. Author(s): FONSECA, J. F. da In vivo embryo production performs an important role in small ruminants, however the efficiency of this biotechnology has high variability. In this context, the occurrence of luteal dysfunction is exa... ... Repository: BDPA Publication year: 2020
Re-utilization of norgestomet implants in superovulated Nelore cows. Repository: BDPA Publication year: 2008
New approaches to superovulation in goats and sheep. Author(s): FONSECA, J. F. da Resumo: A superovulação é a principal tecnologia reprodutiva utilizada para a produção de embriões em ovinos e caprinos, mas a imprevisibilidade dos resultados continua sendo sua maior desvantagem. Vá... ... Repository: BDPA Publication year: 2021

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