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Abstract

Donkey farming is expanding because of the rediscovery of nutritional properties of jennies' milk for human consumption. In livestock, timed artificial insemination (TAI) allows to manage big herds without estrus detection, but there are very few studies on estrus synchronization in jennies. The...

Author(s)
Fanelli, D.; Tesi, M.; Rota, A.; Beltramo, M.; Camillo, F.; Panzani, D.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2019, 74, pp 36-41
Abstract

The aim of the experiment was to evaluate the reproductive performance of ewes synchronized with two doses of prostaglandin F (PG) at different intervals and inseminated at a fixed time. During the breeding season (April to June), 370 multiparous Corriedale ewes were assigned to five groups...

Author(s)
Fierro, S.; Viñoles, C.; Olivera-Muzante, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 90, pp 109-113
Abstract

Contents The objective of this study was to determine whether fluid drainage from the subordinate follicles by ovum pickup procedures prevents the risk of twin pregnancy without reducing the fertility of the cow. Lactating dairy cows with at least two follicles over 12 mm diameter located one on...

Author(s)
López-Gatius, F.; Hunter, R. H. F.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2018, 53, 1, pp 213-216
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

This study aimed to clarify the feasibility of a novel timed artificial insemination (TAI) protocol using ultrasonography, and to determine the associations between the ovarian component and fertility. In Experiment 1, 272 Japanese Black cows with a corpus luteum (CL) ≥18 mm in diameter were...

Author(s)
Funakura, H.; Shiki, A.; Tsubakishita, Y.; Mido, S.; Katamoto, H.; Kitahara, G.; Osawa, T.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2018, 64, 2, pp 109-115
Abstract

OBJECTIVE: To evaluate use of flunixin meglumine as a treatment to postpone ovulation in mares, mare fertility after flunixin meglumine treatment during estrous cycles, and effects of flunixin meglumine on function of the corpus luteum after ovulation. ANIMALS: 13 healthy mares. PROCEDURES: A...

Author(s)
Donnelly, C. G.; Sones, J. L.; Dockweiler, J. C.; Norberg, L. A.; Norberg, L. E.; Cheong, S. H.; Gilbert, R. O.
Publisher
American Veterinary Medical Association, Schaumburg, USA
Citation
American Journal of Veterinary Research, 2019, 80, 3, pp 306-310
Abstract

This study compares the fertility effects of inducing ovulation using the GnRH analogue, dephereline, versus natural GnRH at the end of a 5-day progesterone(P4)-based protocol for fixed-time artificial insemination (FTAI) in heat-stressed and non-heat stressed lactating dairy cows. Cows were given...

Author(s)
Garcia-Ispierto, I.; Rensis, F. de; Pérez-Salas, J. A.; Nunes, J. M.; Pradés, B.; Serrano-Pérez, B.; López-Gatius, F.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Research in Veterinary Science, 2019, 122, pp 170-174
AbstractFull Text

Primiparous and multiparous lactating crossbred dairy cows with a mature corpus luteum and a follicle with >10 mm in diameter were treated with cloprostenol. Those cows that showed oestrus within 5 days after treatment were inseminated (Group P). The other cows (Group PG) were treated with GnRH 2...

Author(s)
Répási, A.; Szelényi, Z.; Sousa, N. M. de; Beckers, J. F.; Nagy, K.; Szenci, O.
Publisher
Polish Academy of Sciences, Committee of Veterinary Sciences, Olsztyn-Kortowo II, Poland
Citation
Polish Journal of Veterinary Sciences, 2019, 22, 2, pp 355-362
Abstract

This study evaluated the effect of new or used P4 devices on the ovarian responses of dairy buffalo that were administered an estradiol (E2) plus progesterone (P4)-based timed artificial insemination (TAI) protocol during the breeding season. On the first day of the TAI protocol, 142 cows were...

Author(s)
Monteiro, B. M.; Souza, D. C. de; Vasconcellos, G. S. F. M.; Corrêa, T. B.; Vecchio, D.; SáFilho, M. F. de; Carvalho, N. A. T. de; Baruselli, P. S.
Publisher
Wiley-Blackwell, Melbourne, Australia
Citation
Animal Science Journal, 2016, 87, 1, pp 13-20
Abstract

The objective of the present study was to determine the ovarian response induced with the prostaglandin-based protocol Synchrovine (two doses of PGF given 7 d apart), as well as the fertility after FTAI. In Experiment 1, 15 females received the Synchrovine protocol using two different PGF...

Author(s)
Vilariño, M.; Cuadro, F.; Santos Neto, P. C. dos; García-Pintos, C.; Menchaca, A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 90, pp 163-168

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