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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
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
Does GnRH treatment at TAI regardless of estrus occurrence increase pregnancy rate in crossbred Bos taurus suckled cows? Author(s): FERNANDES, V. S.; VELHO, G. dos S.; SANTOS, M. F. O. dos; EVANGELISTA, K. A.; GASPERIN, B. G.; PFEIFER, L. F. M.; FERREIRA, R.; GONÇALVES, P. B. D; GASTAL, G. D. A.; DALTO, A. G. C.; ROVANI, M. T. The impact of GnRH treatment on the day of TAI in beef cows has received limited investigation, especially concerning its association with estrus expression. Consequently, two experiments were conduct... ... 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
Supplementation with protected FAT in the dairy buffalo cows pregnancy rate. Author(s): CARDOSO, C. J. T.; SILVA, K. C. da; ANACHE, N. A.; RODRIGUES, W. B.; LIMA, A. C. B. de; FERREIRA, M. G. C. R.; STERZA, F. de A. M.; NOGUEIRA, E. The objective of this study was to evaluate the effect of supplementation with rumen-protected fat source (RPF, palm oil) on the pregnancy rate of dairy buffalo cows submitted to FTAI. Repository: BDPA Publication year: 2017
Pregnancy rates and corpus luteum-related factors affecting pregnancy establishment in bovine recipients synchronized for fixed-time embryo transfer. Author(s): SIQUEIRA, L. G. B.; TORRES, C. A. A.; SOUZA, E. D.; MONTEIRO JUNIOR, P. L. J.; ARASHIRO, E. K. N.; CAMARGO, L. S. A.; FERNANDES, C. A. C.; VIANA, J. H. M. The objective was to investigate the influence of corpora lutea physical and functional characteristics on pregnancy rates in bovine recipients synchronized for fixed-time embryo transfer (FTET). Cros... ... Repository: BDPA Publication year: 2009
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
Effects of flunixin meglumine, recombinant bovine somatotropin and/or human chorionic gonadotropin on pregnancy rates in Nelore cows. Author(s): ROSSETTI, R. C.; PERDIGÃO, A.; SÁ FILHO, M.; NOGUEIRA, G. P.; MACHADO, R.; MEMBRIVE, C. M. B.; BINELLI, M. The objective was to compare pharmacological strategies aiming to inhibit prostaglandin F2 alpha (PGF2) synthesis (flunixin meglumine; FM), stimulate growth of the conceptus (recombinant bovine somato... ... Repository: BDPA Publication year: 2011
Effects of narasin on the pregnancy rate of Nellore cows maintained under grazing and performance of calves - preliminary results. Author(s): CARDOSO, C. J. T.; LIMA, A. C. B.; PEREIRA, D. M.; SILVA, G. C.; SILVA, K. C.; ANACHE, N. A.; RODRIGUES, W. B.; MARQUES JÚNIOR, H. R.; MELO-STERZA, F. A.; NOGUEIRA, E. Ionophores have been used to improve forage conversion in animal protein and to increase nutrient utilization efficiency in cattle. The effects of the mineral mix (MM) with addition of narasin (Zimpro... ... Repository: BDPA Publication year: 2018

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