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Abstract

Two experiments were conducted with the aim of determining the effect of equine chorionic gonadotropin (eCG) administration on day 14 after insemination on ovarian response and pregnancy establishment in postpartum anestrous beef cows. In both experiments, cows were subjected to a progesterone- and ...

Author(s)
Núñez-Olivera, R.; Castro, T. de; Bó, G. A.; Piaggio, J.; Menchaca, A.
Publisher
Elsevier Inc, New York, USA
Citation
Domestic Animal Endocrinology, 2018, 62, pp 24-31
Abstract

Fixed-time artificial insemination (FTAI) has been regarded as the most useful method to increase the number of cows inseminated in a given herd. The main treatments for FTAI in beef cattle are based on the use of progesterone-releasing devices and GnRH or estradiol to synchronize follicle wave...

Author(s)
Bó, G. A.; Mata, J. J. de la; Baruselli, P. S.; Menchaca, A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 86, 1, pp 388-396
Abstract

The association of heat detection and IATF are an interesting option to improve performance when using J-Synch treatment in heifers. Although the treatments seem to affect the reproductive capacity of the heifers, it is important not to forget other factors having an impact on results such as...

Author(s)
Javier de la Mata, J.; Núñez-Olivera, R.; Menchaca, A.; Bó, G. A.
Publisher
Point Vétérinaire Italie s.r.l., Milano, Italy
Citation
Summa, Animali da Reddito, 2017, 12, 4, pp 53-62
Abstract

Protocols designed to control follicular wave dynamics and ovulation in cattle have reduced, and even eliminated, the need for estrus detection. The addition of progestin-releasing devices and gonadotropin treatments, such as equine chorionic gonadotropin, have provided possibilities for increased...

Author(s)
Mapletoft, R. J.; Bó, G. A.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the 45th Annual Conference of the American Association of Bovine Practitioners, Montreal, Canada, 20-22 September, 2012, 2012, pp 40-48
Abstract

The aim of this review is to compare the performance of different reproductive programs using natural service, estrus synchronization treatment before natural service (timed natural breeding (TNB)), artificial insemination (AI) following estrus detection and timed artificial insemination (TAI) in...

Author(s)
Baruselli, P. S.; Ferreira, R. M.; SáFilho, M. F.; Bó, G. A.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2018, 12, s1, pp s45-s52
Abstract

The main objective of the implementation of artificial insemination (AI) in cattle is to produce a sustained genetic progress in the herd. Although AI is an old reproductive biotechnology, its widespread implementation is very recent and is mainly because of the use of protocols that allows AI...

Author(s)
Bó, G. A.; Baruselli, P. S.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2014, 8, s1, pp 144-150
Abstract

Compared to Bos taurus breeds, Bos indicus breeds of cattle present several differences in reproductive physiology. Follicular diameter at deviation and at the time of ovulatory capability are smaller in B. indicus breeds. Furthermore, B. indicus breeds have a greater sensitivity to gonadotropins,...

Author(s)
Baruselli, P. S.; SáFilho, M. F. de; Martins, C. M.; Nasser, L. F.; Nogueira, M. F. G.; Barros, C. M.; Bó, G. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2006, 65, 1, pp 77-88
Abstract

The adaptation of Bos indicus cattle to tropical and subtropical environments has led to their widespread distribution around the world. Although artificial insemination (AI) is one of the best alternatives to introduce new genetics into Bos indicus herds, the peculiarity of their temperament and...

Author(s)
Bó, G. A.; Cutaia, L.; Peres, L. C.; Pincinato, D.; Maraña, D.; Baruselli, P. S.
Publisher
Nottingham University Press, Nottingham, UK
Citation
Reproduction in domestic ruminants VI. Proceedings of the Seventh International Symposium on Reproduction in Domestic Ruminants, Wellington, New Zealand, 13-17 August, 2006, 2007, pp 223-236
Abstract

The main objective of the implementation of Artificial Insemination (AI) in cattle is to produce a sustained genetic progress in the herd. Although AI is an old reproductive biotechnology, its widespread implementation is very recent and is mainly due to the use of protocols that allows the AI...

Author(s)
Bó, G. A.; Baruselli, P. S.; Mapletoft, R. J.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Animal Reproduction (Belo Horizonte), 2013, 10, 3, pp 137-142
Abstract

This study compared pregnancy rates (PRs) and costs per calf born after fixed-time artificial insemination (FTAI) or AI after estrus detection (i.e., estrus detection and AI, EDAI), before and after a single PGF2α treatment in Bos indicus (Brahman-cross) heifers. On Day 0, the body weight, body...

Author(s)
Edwards, S. A. A.; Bo, G. A.; Chandra, K. A.; Atkinson, P. C.; McGowan, M. R.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 83, 1, pp 114-120

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