Search Results - "Palhão, M."

Necessity of Sequential Pulses of Prostaglandin F2alpha for Complete Physiologic Luteolysis in Cattle by Ginther, O.J, Araujo, R.R, Palhão, M.P, Rodrigues, B.L, Beg, M.A

“…The luteolytic effects of exogenous prostaglandin F2alpha (PGF) that did and did not simulate natural 13,14-dihydro-15-keto-PGF (PGFM) pulses were studied…”
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Differential expression of insulin‐like growth factor family members in immature cumulus–oocyte complexes from dairy cows with different genotypes by Lopes, AC, Palhão, MP, Fernandes, CAC, Sudano, MJ, Castilho, ACS, Caixeta, ES

“…Contents It has been evident the improvement of in vitro embryo production (IVEP) in dairy cows. Nevertheless, it is known that differences in the number and…”
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Early resynchronization of non-pregnant beef cows based in corpus luteum blood flow evaluation 21 days after Timed-AI by Palhão, M.P., Ribeiro, A.C., Martins, A.B., Guimarães, C.R.B., Alvarez, R.D., Seber, M.F., Fernandes, C.A.C., Neves, J.P., Viana, J.H.M.

“…The study aimed to verify whether a hormone protocol started at Day 13 (D13) after Timed Artificial Insemination (TAI) influences the conception rate. Nelore…”
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Occurrence and characteristics of residual follicles formed after transvaginal ultrasound-guided follicle aspiration in cattle by Viana, J.H.M, Dorea, M.D, Siqueira, L.G.B, Arashiro, E.K.N, Camargo, L.S.A, Fernandes, C.A.C, Palhão, M.P

“…Ultrasound-guided transvaginal follicle aspiration is used to recover cumulus-oocyte complexes (for IVF) and to synchronize follicular wave emergence (ablation…”
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Color Doppler flow imaging for the early detection of nonpregnant cattle at 20 days after timed artificial insemination by Siqueira, L G B, Areas, V S, Ghetti, A M, Fonseca, J F, Palhao, M P, Fernandes, C A C, Viana, J H M

“…The objective was to determine the accuracy of a pregnancy test for predicting nonpregnant cattle based on the evaluation of corpus luteum (CL) blood flow at…”
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Short communication: Does previous superovulation affect fertility in dairy heifers? by Fernandes, C A C, Pereira, G H S, Siqueira, L G B, Neri, H L D H, Viana, J H M, Palhao, M P, Teodoro, R A S

“…The aim of this study was to evaluate the potential negative effects of superovulation on subsequent fertility of dairy heifers. Holstein heifers (n = 1,783),…”
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Role of Follicular Estradiol-17beta in Timing of Luteolysis in Heifers by Araujo, Reno R, Ginther, O.J, Ferreira, Jair C, Palhão, Miller M, Beg, Mohd A, Wiltbank, Milo C

“…The hypothesis was tested that estradiol (E2) from the ovarian follicles controls time of luteolysis. Time of luteolysis was evaluated by multiple measures of…”
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Corpus luteum blood flow evaluation on Day 21 to improve the management of embryo recipient herds by Guimarães, C.R.B., Oliveira, M.E., Rossi, J.R., Fernandes, C.A.C., Viana, J.H.M., Palhao, M.P.

“…The aim of the present study was to use blood flow evaluation of the CL at 14 days after embryo transfer to detect nonpregnant animals and optimize the…”
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Redução da resposta superovulatória de fêmeas bovinas superestimuladas com FSH em doses split by Tirapelli, A.C.N., Fernandes, C.A.C., Gioso, M.M., Varago, F.C., Palhão, M., Rossi, T.C., Garcia, J.A.D.

“…Objetivou-se avaliar a superovulação (SOV) de vacas zebuínas, utilizando protocolo convencional ou protocolo com número menor de aplicações e similar dosagem…”
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Follicle and hormone dynamics in single versus double ovulating heifers by Palhao, M P, Beg, M A, Rodrigues, M T, Ginther, O J

“…Follicles ≥5 mm were ablated at 4 day post-ovulation in heifers to induce a follicular wave, and prostaglandin F2α was given at day 6 to increase the incidence…”
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Efficacy of induction of luteolysis in superovulated cows is dependent on time of prostaglandin F2alpha analog treatment: effects on plasma progesterone and luteinizing hormone profiles by Viana, J.H.M., Vargas, M.S.B., Siqueira, L.G.B., Camargo, L.S.A., Figueiredo, A.C.S., Fernandes, C.A.C., Palhao, M.P.

“…The objectives were to (1) evaluate the effectiveness of induction of luteolysis in superovulated (SOV) cows at two distinct time points after embryo flushing;…”
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Intrafollicular oestradiol production, expression of the LH receptor (LHR) gene and its isoforms, and early follicular deviation in Bos indicus by Wohlres-Viana, S, Arashiro, E K N, Machado, M A, Camargo, L S A, Siqueira, L G B, Palhao, M P, Viana, J H M

“…The aim of the present study was to characterise the roles of intrafollicular oestradiol production and granulosa cell (GC) expression of the LH receptor (LHR)…”
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Ovarian follicular dynamics, follicle deviation, and oocyte yield in Gyr breed ( Bos indicus) cows undergoing repeated ovum pick-up by Viana, J.H.M., Palhao, M.P., Siqueira, L.G.B., Fonseca, J.F., Camargo, L.S.A.

“…The objective of this study was to evaluate ovarian follicular dynamics during intervals between successive ovum pick-up (OPU) and determine its effects on the…”
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Efficacy and limitations of different approaches to anticipate the diagnosis of pregnancy in cattle by Palhão, M.P., Guimarães, C.R.B., Lima, J.F.J.F.M., Mendonça, M.R., Fernandes, C.A.C., Neves, J.P., Garcia, J.A.D., Gioso, M.M., Miglino, M.A., Viana, J.H.M.

“…ABSTRACT The study evaluated sonographic and serologic exams performed for early (20 to 30d) diagnosis of pregnancy. One hundred-twenty (n= 120) bovine…”
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Endogenous Progesterone Concentrations Affect Progesterone Release from Intravaginal Devices Used for Oestrous Synchronization in Cattle by Neri, HL, Palhao, MP, Costa, DS, Viana, JHM, Fernandes, CAC

“…Intravaginal progesterone‐releasing devices are largely used both as contraceptives in humans and as a component of oestrous synchronization protocols in…”
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Role of increased estradiol on altering the follicle diameters and gonadotropin concentrations that have been reported for double-ovulating heifers by Palhao, M.P., Beg, M.A., Rodrigues, M.T., Ginther, O.J.

“…During the preovulatory period in heifers that ovulate from two compared to one follicle, circulating concentrations of estradiol-17β (E2) are greater,…”
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Stimulation of the largest subordinate follicle by intrafollicular treatment with insulin-like growth factor 1 is associated with inhibition of the dominant follicle in heifers by Shahiduzzaman, A.K.M., Beg, M.A., Palhao, M.P., Siddiqui, M.A.R., Shamsuddin, M., Ginther, O.J.

“…The effect of intrafollicular treatment of the second-largest follicle (F2) with insulin-like growth factor (IGF) 1 on the largest follicle (F1) and F2 was…”
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Role of Follicular Estradiol-17beta in Timing of Luteolysis in Heifers1 by Araujo, Reno R, Ginther, O. J, Ferreira, Jair C, Palhão, Miller M, Beg, Mohd A, Wiltbank, Milo C

“…The hypothesis was tested that estradiol (E2) from the ovarian follicles controls time of luteolysis. Time of luteolysis was evaluated by multiple measures of…”
Get full text

Redução da resposta superovulatória de fêmeas bovinas superestimuladas com FSH em doses split by Tirapelli, A.C.N., Fernandes, C.A.C., Gioso, M.M., Varago, F.C., Palhão, M., Rossi, T.C., Garcia, J.A.D.

“…Objetivou-se avaliar a superovulação (SOV) de vacas zebuínas, utilizando protocolo convencional ou protocolo com número menor de aplicações e similar dosagem…”
Get full text

Necessity of Sequential Pulses of Prostaglandin F2alpha for Complete Physiologic Luteolysis in Cattle1 by Ginther, O. J, Araujo, R. R, Palhão, M. P, Rodrigues, B. L, Beg, M. A

“…The luteolytic effects of exogenous prostaglandin F2alpha (PGF) that did and did not simulate natural 13,14-dihydro-15-keto-PGF (PGFM) pulses were studied…”
Get full text