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Abstract

The objective was to evaluate the effect of injectable progesterone previous to the timed artificial insemination (TAI) protocol on follicular growth, ovulation and pregnancy rate of suckled Bos indicus cows. In experiment 1, 10 days before the beginning to TAI protocol (D-10), 431 suckled-anestrus ...

Author(s)
Simões, L. M. S.; Orlandi, R. E.; Massoneto, J. P. M.; Scandiuzzi, L. A.; Freitas, B. G.; Bastos, M. R.; Souza, J. C.; Sales, J. N. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 116, pp 28-33
Abstract

The objectives were to evaluate the effects of the administration of either eCG or progesterone (P4) alone or combined on endogenous P4 concentrations and pregnancy per AI in lactating dairy cows. Cows received a P4-releasing intravaginal device (PRID) and estradiol benzoate on D-8. The PRID was...

Author(s)
Sampaio, P. C.; Alves, N. G.; Souza, J. C.; Sales, J. N. S.; Carvalho, R. J.; Lima, R. R.; Teixeira, A. A.; Nogueira, G. P.; Ascari, I. J.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2015, 162, pp 88-94
Abstract

Four experiments were designed to evaluate the effect of different circulating progesterone (P4) concentrations during a synchronization of ovulation protocol for the timed artificial insemination (TAI) of Bos indicus (Nelore) beef cattle. In the first trial, 13 ovariectomized Nelore heifers were...

Author(s)
Sales, J. N. S.; Carvalho, J. B. P.; Crepaldi, G. A.; Soares, J. G.; Girotto, R. W.; Maio, J. R. G.; Souza, J. C.; Baruselli, P. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 83, 6, pp 1093-1100
Abstract

The abilities of two different estradiol esters to induce ovulation in a timed AI (TAI) synchronization protocol in suckled Bos indicus cows were evaluated. In Experiment 1 (synchrony of ovulation), 31 cows were submitted to an estradiol/progestin-based synchronization protocol (Day 0) and randomly ...

Author(s)
Torres Júnior, J. R. S.; Penteado, L.; Sales, J. N. S.; SáFilho, M. F.; Ayres, H.; Baruselli, P. S.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2014, 151, 1/2, pp 9-14
Abstract

The hypotheses of this study were (1) that the administration of 400 IU eCG in a TAI protocol would increase ovarian follicular growth and diameter of the largest follicle (LF), volume of the CL, and produce an earlier rise on serum concentration of progesterone (P4) to ultimately improve P/AI...

Author(s)
Ferreira, R. M.; Ayres, H.; Sales, J. N. S.; Souza, A. H.; Rodrigues, C. A.; Baruselli, P. S.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2013, 140, 1/2, pp 26-33
Abstract

The objective of this study was to evaluate the effects of an exogenous administration of equine chorionic gonadotrophin (eCG) and eCG plus estradiol cypionate (eCG+ECP) during the proestrous period on the occurrence of estrus (based on the activation of a self-adhesive heat detection patch), on...

Author(s)
Pitaluga, P. C. S. F.; SáFilho, M. F.; Sales, J. N. S.; Baruselli, P. S.; Vincenti, L.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Livestock Science, 2013, 154, 1/3, pp 229-234
Abstract

Currently, timed artificial insemination (TAI) can be applied routinely in the reproductive programs on farms. TAI protocols are designed to promote control of both luteal and follicular function, permitting the TAI with satisfactory pregnancy per AI (P/AI). A variety of protocols for TAI have been ...

Author(s)
Baruselli, S.; Sales, J. N. S.; Sala, R. V.; Vieira, L. M.; SáFilho, M. F.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Animal Reproduction (Belo Horizonte), 2012, 9, 3, pp 139-152
Abstract

The effects of estradiol benzoate (EB) and estradiol cypionate (EC) on induction of ovulation after a synchronized LH surge and on fertility of Bos indicus females submitted to timed AI (TAI) were evaluated. In Experiment 1, ovariectomized Nelore heifers were used to evaluate the effect of EB (n=5) ...

Author(s)
Sales, J. N. S.; Carvalho, J. B. P.; Crepaldi, G. A.; Cipriano, R. S.; Jacomini, J. O.; Maio, J. R. G.; Souza, J. C.; Nogueira, G. P.; Baruselli, P. S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2012, 78, 3, pp 510-516
Abstract

The present study aimed to evaluate the efficacy of different inducers of new follicular wave emergence (FWE) and ovulation in fixed-time artificial insemination (FTAI) synchronization protocols using norgestomet ear implants (NORG) in Bos indicus cattle. In Experiment 1, the synchronization of FWE ...

Author(s)
SáFilho, M. F.; Baldrighi, J. M.; Sales, J. N. S.; Crepaldi, G. A.; Carvalho, J. B. P.; Bó, G. A.; Baruselli, P. S.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2011, 129, 3/4, pp 132-139
Abstract

Currently, timed ovulation induction and fixed-time artificial insemination (FTAI) in superstimulated donors and synchronization protocols for fixed-time embryo transfer (FTET) in recipients can be performed using GnRH or estradiol plus progesterone/progestin (P4)-releasing devices and...

Author(s)
Baruselli, P. S.; Ferreira, R. M.; Sales, J. N. S.; Gimenes, L. U.; SáFilho, M. F.; Martins, C. M.; Rodrigues, C. A.; Bó, G. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2011, 76, 9, pp 1583-1593

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