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Abstract

The main problem restricting the wide use of reproductive biotechnology in animal husbandry is insufficiently developed methods for selection of donor cows for embryo transfer. The objective reason is the variability of the ovarian response to gonadotropins injections. Until now, there is no...

Author(s)
Brigida, A. V.; Sorokin, V. I.; Kovalchuk, S. N.; Pantiukh, K. S.; Rukin, I. V.; Rozhin, K. A.
Publisher
Agricultural Biology Editorial Office, NPO, Moscow, Russia
Citation
Sel'skokhozyaĭstvennaya Biologiya, 2018, 53, 4, pp 753-761
Abstract

This experiment evaluated the reproductive performance, herd exit dynamics, and lactation performance of dairy cows managed with a voluntary waiting period (VWP) of 60 or 88 d. Secondary objectives were evaluating VWP effect on cyclicity status, uterine health, systemic inflammation, and body...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Thomas, M. J.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 717-735
Abstract

This study investigated bovine conceptus-induced modifications to the endometrial transcriptome related to effects of interferon tau (IFNT), conceptus origin (in vivo vs. in vitro), and conceptus sex. In vitro (IVF) or in vivo (superovulation and artificial insemination, AI) produced blastocysts...

Author(s)
Mathew, D. J.; Sánchez, J. M.; Passaro, C.; Charpigny, G.; Behura, S. K.; Spencer, T. E.; Lonergan, P.
Publisher
Oxford University Press, Cary, USA
Citation
Biology of Reproduction, 2019, 100, 2, pp 365-380
Abstract

The objective of this study was to evaluate the oestrus and pregnancy using seven and 14 days synchronization protocol followed by fixed-time artificial insemination (FTAI) in sheep, 50 ewes were selected and divided into two groups: G-14 (n=25) and G-07 (n=25). Were inserted vaginal sponges that...

Author(s)
Sousa, M. S.; Nunes, J. F.; Salgueiro, C. C. M.; Câmara, T. S.; Machado, A. A. C.; Pessoa, R. H. de P.; Negreiros, N. A. B.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2016, 40, 4, pp 452-453
Abstract

Control of the estrous cycle through estrus synchronization protocols allows the producer to share lots of females according to the management capacity and ownership of facilities easier handling and better use of players. Therefore, the objective was to verify the influence of artificial ...

Author(s)
Elias, S. C.; Chaves Neto, A.; Hadad, Y. C. R.; Sousa, K. C. de; Ohana, J.; Carvalho, L. C. de; Silva, G. A. L. da; Rolim Filho, S. T.
Publisher
Colégio Brasileiro de Reprodução Animal, Belo Horizonte, Brazil
Citation
Revista Brasileira de Reprodução Animal, 2016, 40, 4, pp 474-475
AbstractFull Text

The estrous cycle or interovulatory interval in the mare allows monitoring and selection of the most appropriate time for copulation or artificial insemination (AI). Estrous cycle is an interaction of hormones of the pineal gland, hypothalamus, pituitary, gonad and endometrium lasting 21 days. The...

Author(s)
Cortés-Vidauri, Z.; Aréchiga-Flores, C.; Rincón-Delgado, M.; Rochín-Berumen, F.; Carlos, M. L.; Flores-Flores, G.
Publisher
Sergio Martínez González, Tepic, Mexico
Citation
Abanico Veterinario, 2018, 8, 3, pp 14-41
Abstract

Twelve lactating crossbred cows with ovarian follicular cysts were divided into two groups. Six cattle from Group I were administered with GnRH analogue (20 µg Buserelin) on day 0, PGF (500 µg Cloprostenol) on day 15 and second GnRH (20 µg Buserelin) on day 17 and fixed time artificial ...

Author(s)
Hemalatha, H.; Murugavel, K.; Kantharaj, S.; Antoine, D.; Raju, M. S.
Publisher
Indian Veterinary Association, Chennai, India
Citation
Indian Veterinary Journal, 2018, 95, 12, pp 23-25
AbstractFull Text

The impact of real-time ultrasound on the study of bovine reproduction has been dramatic and further development of portable ultrasound machines has given clinicians an added tool for diagnostic reproductive management. Ultrasonography with 3.0-7.5 MHz frequency linear probes is commonly used and...

Author(s)
Suthar, V. S.; Momin, T.; Mahesh, P.; Kelawala, D. N.; Patil, D. B.
Publisher
Intas Pharmaceuticals Ltd, Ahmedabad, India
Citation
Intas Polivet, 2018, 19, 1, pp 22-28
Abstract

North American reindeer (Rangifer tarandus tarandus) are seasonally polyestrus short-day breeders. Seasonal ovarian activity begins in late August with an estrous cycle length of 24±3.4 days. Estrous synchronization protocols have been published and are similar to protocols in sheep and goats. ...

Author(s)
Bott, N. I.
Publisher
American Association of Bovine Practitioners, Stillwater, USA
Citation
Proceedings of the Fifty-First Annual Conference of the American Association of Bovine Practitioners, Phoenix, Arizona, USA, September 13-15, 2018, 2018, pp 188-191
Abstract

Stallions show decreased sexual responses and activities during short days in winter. To evaluate the importance of sexual olfactory communication in horses, we tested whether sexual responses could be stimulated through various sexual olfactory stimulations in winter. To this end, we presented...

Author(s)
Guillaume, D.; Moussu, C.; Geoffroy, F. de; Chesneau, D.; Keller, M.
Publisher
Elsevier, New York, USA
Citation
Physiology & Behavior, 2018, 186, pp 1-9

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