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Color Doppler ultrasonography for early pregnancy diagnosis in goats. Author(s): COSENTINO, I. O.; BALARO, M. F. A.; LEAL, F. S. C.; BADE, A. L. C.; CÔRTES, L. R.; ARASHIRO, E. K. N.; FONSECA, J. F. da; BRANDÃO, F. Z. Abstract: Subjective luteal blood flow analysis by color Doppler ultrasonography (US) was previously demonstrated in cows and sheep as an early and accurate method for pregnancy diagnosis. This study... ... Repository: BDPA Publication year: 2018
Changes in maternal body composition and metabolism of dairy goats during pregnancy. Author(s): CASTAGNINO, D. de S.; HüRTER, C. J.; RIVERA, A. R.; LIMA, L. D. de; SILVA, H. G. de O.; BIAGIOLI, B.; RESENDE, K. T. de; TEIXEIRA, I. A. M. de A. Abstract: The objective of this study was to evaluate the mobilization of nutrients in goats of different gestation types and pregnancy stages. Forty-four Saanen and Oberhasli goats were studied. The... ... Repository: BDPA Publication year: 2015
Two ultrasonic methods for early detection of pregnancy in cattle. Author(s): FERNANDES, C.; FIGUEIREDO, A. C.; PALHÃO, M.; RAYMUNDY, A.; VIANA, J. H. M.; NEVES, J.; COSTA, D. Repository: BDPA Publication year: 2016
GnRH application in cows with low or no estrus expression evaluated with tail-chalk increases the pregnancy rate in beef cows submitted to TAI. Author(s): NOGUEIRA, E.; RODRIGUES, W. B.; SILVA, A. S.; SILVA, J. C. B.; SILVA, K. C.; ANACHE, N. A.; BEZERRA, A. O.; LEÃO, B. C. S.; ROCHA-FRIGONI, N. A. S.; MINGOTI, G. Z. The objective was to evaluate the GnRH application in cows with low or poor estrus expression evaluated using tail chalk removal Score (ESCT) to increase TAI pregnancy rates. Repository: BDPA Publication year: 2016
Effects of antral follicles count (AFC), weight and age on the pregnancy rate after FTAI of Nellore heifers. Author(s): SILVA, G. C.; CARDOSO, C. J. T.; PEREIRA, D. M.; ORTIZ, G. L.; SANTOS, M.; OLIVEIRA, S. S.; SILVA, A. F.; LIMA, A. C. B.; OLIVEIRA, D. P.; GHELLER, J. M.; NOGUEIRA, E.; MELO-STERZA, F. A. The aim of this study was to evaluate the effects of antral follicles count (AFC), weight and age on the pregnancy rate of Nellore heifers. The experiment was carried out at São Judas Farm, county of... ... Repository: BDPA Publication year: 2018
Intravaginal hCG administration increases pregnancy rate in artificially inseminated cyclic dairy goats subjected to estrous synchronization. Author(s): DIAS, J. H.; CORTÊS, L. R.; BRANDÃO, F. Z.; BONATO, G. C.; SOUZA-FABJAN, J. M. G.; ARRAIS, A. M.; OLIVEIRA, T. A.; MARTINS, B. B.; FACO, O.; FONSECA, J. F. da Pregnancy establishing after artificial insemination (AI) in goats depends on many important aspects, including time of AI, ovulation and premature luteal regression. The knowledge of ovulation in rel... ... Repository: BDPA Publication year: 2018
Effect of the calving-FTAI interval on pregnancy rate and gestational losses in primiparous beef cows. Author(s): CORDEIRO, D. A. G.; SILVA, L. G. da; MACHADO, J. V. B.; SANTOS, M.; SANTANA, T. dos S.; COSTA, W. C. C. da; FERREIRA, L. C. L; NOGUEIRA, E.; PFEIFER, L. F. M.; STERZA, F. de A. M. The aim of this study was to evaluate the influence of the FTAI-calving interval, according to animal category, on the fertility of beef cows. Early Nelore primiparous cows (n = 879; 24 ± 3.3 months;... ... Repository: BDPA Publication year: 2024
Heat score accessed with aid of tail-chalk influences pregnancy rate of suckled Bos indicus beef cows subjected to P4/estradiol TAI-based protocols. Author(s): SILVA, K. C.; RODRIGUES, W. B.; SILVA, A. S.; SILVA, J. C. B. da; ABREU, U. G. P. de; BATISTA, D. S. do N.; ANACHE, N. A.; BEZERRA, A. O.; JARA, J. do P.; NOGUEIRA, E. It is known that cows that express estrus submitted to TAI protocols, have better pregnancy rates (Borges et al. 2011). So the goal was to test alternative to visual estrus observation, evaluating the... ... Repository: BDPA Publication year: 2016
Luteal vascularization as a tool for early pregnancy diagnosis in sheep is more efficient from day 17 post-insemination. Author(s): ARASHIRO, E. K. N.; PINTO, P. H. N.; BRAGANÇA, G. M.; RIBEIRO, L. S.; BALARO, M. F. A.; FONSECA, J. F. da; BRANDÃO, F. Z. The objective of the present study was to determine the efficiency of luteal vascularization assessment using color Doppler ultrasonography (US) as a tool for predictive pregnancy diagnosis and at whi... ... Repository: BDPA Publication year: 2017
Effect of pregnancy on the genetic evaluation of dairy cattle. Author(s): PEREIRA, R. J.; SANTANA JUNIOR, M. L.; BIGNARDI, A. B.; VERNEQUE, R. da S.; EL FARO, L.; ALBUQUERQUE, L. G. de We investigated the effect of stage of pregnancy on estimates of breeding values for milk yield and milk persistency in Gyr and Holstein dairy cattle in Brazil. Test-day milk yield records were analyz... ... Repository: BDPA Publication year: 2011

Showing 1 - 10 of 173 results.

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