Search Results - "Barbas, J.P."

Evaluation of two methods of in vitro production of ovine embryos using fresh or cryopreserved semen by Romão, R., Marques, C.C., Baptista, M.C., Vasques, M.I., Barbas, J.P., Horta, A.E.M., Carolino, N., Bettencourt, E., Plancha, C., Rodrigues, P., Pereira, R.M.

“…Successful production of high quality blastocysts depends on the use of a culture system that ensures the acquisition of developmental competence by the…”
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The fertility increase after misoprostol administration is differently expressed when sheep are inseminated with chilled or frozen–thawed semen by Barbas, J.P., Horta, A.E.M., Marques, C.C., Baptista, M.C., Mascarenhas, R.D., Martins, D.O., Vasques, M.I., Pereira, R.M., Cavaco-Gonçalves, S.

“…The effect of vaginal administration of misoprostol 6h prior to artificial insemination (AI) with chilled (CS-AI, n=95) or frozen–thawed (FTS-AI, n=163) semen…”
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In vitro and in vivo fertility of ram semen cryopreserved in different extenders by Valente, S.S., Pereira, R.M., Baptista, M.C., Marques, C.C., Vasques, M.I., Pereira, M.V.C. Silva, Horta, A.E.M., Barbas, J.P.

“…Seminal traits of frozen-thawed (FT) ram semen and in vitro and field fertility in native Portuguese breeds were evaluated in 4 experiments. In exp. 1 and 2…”
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Doppel gene polymorphisms in Portuguese sheep breeds: Insights on ram fertility by Pereira, R.M., Mesquita, P., Batista, M., Baptista, M.C., Barbas, J.P., Pimenta, J., Santos, I.C., Marques, M.R., Vasques, M.I., Silva Pereira, M., Santos Silva, F., Oliveira Sousa, M.C., Fontes, C.M.G., Horta, A.E.M., Prates, J.A.M., Marques, C.C.

“…Transgenic knockout of the gene encoding the prion-like protein Doppel leads to male infertility in mice. The precise role of Doppel in male fertility is still…”
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Sperm kinematics and subpopulational responses during the cryopreservation process in caprine ejaculates by Barbas, J.P., Leahy, T., Horta, A.E., García-Herreros, M.

“…Sperm cryopreservation in goats has been a challenge for many years due to the detrimental effects of seminal plasma enzymes produced by the bulbo-urethral…”
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Prion protein testis specific (PRNT) gene polymorphisms and transcript level in ovine spermatozoa: Implications in freezability, fertilization and embryo production by Pereira, R.M., Mesquita, P., Pires, V.M.R., Baptista, M.C., Barbas, J.P., Pimenta, J., Horta, A.E.M., Prates, J.A.M., Marques, C.C.

“…An essential role of prion protein testis specific (PRNT) and prion protein 2 dublet (PRND) genes in the male reproductive function has been highlighted,…”
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Cryopreservation of in vitro–produced sheep embryos: Effects of different protocols of lipid reduction by Romão, R., Marques, C.C., Baptista, M.C., Barbas, J.P., Horta, A.E.M., Carolino, N., Bettencourt, E., Pereira, R.M.

“…The low survival of sheep in vitro–produced (IVP) embryos after cryopreservation is a key limiting step to the widespread of this technology. In the present…”
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Impairment of ram sperm-hyaluronan binding ability by the freezing extender by Marques, C.C., Barbas, J.P., Horta, A.E.M., Baptista, M.C., Pereira, R.M., Cavaco-Gonçalves, S.

“…The ability of ram sperm to bind to hyaluronan coated slides (HBS, %) was tested on fresh (FS) and chilled semen (CS) diluted with skimmed- milk based extender…”
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