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Abstract

Background: The aim of this study was to evaluate the reproductive performance of a new artificial insemination (AI) device specifically designed for gilts (Deep cervical AI, Dp-CAI) by means of which the sperm is deposited deeply in the cervix (8 cm more cranial than in traditional cervical ...

Author(s)
Llamas-López, P. J.; López-Úbeda, R.; López, G.; Antinoja, E.; García-Vázquez, F. A.
Publisher
BioMed Central Ltd, London, UK
Citation
Journal of Animal Science and Biotechnology, 2019, 10, 11, pp (28 January 2019)
AbstractFull Text

Reproductive failures are often difficult to diagnose. However, use of gestation flow charts and sow card information can be very helpful in determining when problems occurred, and which management phases should be examined. Regular returns to estrus after insemination usually are conception...

Author(s)
Flowers, W. L.
Publisher
London Swine Conference, London, Canada
Citation
Proceedings of the London Swine Conference, 26-27 March 2019, London, Ontario, Canada, 2019, pp 79-84
AbstractFull Text

The study was conducted to evaluate the conception rate of heifers and multiparous cows based on different Holstein bulls used for artificial insemination (AI). The effects of the type of management AI, animal category, and season of the year were also examined. A three-year database on the...

Author(s)
Luz, G. B.; Maffi, A. S.; Farias, L. B.; Xavier, E. G.; Lima, M. E.; Corrêa, M. N.; Brauner, C. C.
Publisher
Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Porto Alegre, Brazil
Citation
Acta Scientiae Veterinariae, 2018, 46, pp 1552
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
AbstractFull Text

Most fixed-time artificial insemination (FTAI) protocols utilize progesterone (P4) as a hormonal source to achieve synchronization of estrus in cattle. The use of an injectable P4 source to control estrus would be an interesting pharmacological strategy owing to the practicality of parenteral...

Author(s)
Campos, J. T.; Morotti, F.; Bergamo, L. Z.; Costa, C. B.; Seneda, M. M.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2016, 37, 4, pp 1991-1996
Abstract

Genetic selection of dairy cattle in the United States has included reproductive traits (daughter pregnancy rate, DPR; heifer conception rate, HCR), which is believed to have partly contributed to halting the decline in reproductive performance. The objectives of the current study were to evaluate...

Author(s)
Veronese, A.; Marques, O.; Moreira, R.; Belli, A. L.; Bisinotto, R. S.; Bilby, T. R.; Peñagaricano, F.; Chebel, R. C.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 7, pp 6624-6638
AbstractFull Text

The success of a fixed-time artificial insemination (FTAI) program depends on a high ovulation rate during a short interval. Equine chorionic gonadotropin (eCG) has been used in FTAI protocols to improve follicular growth and thereby to produce larger, more responsive follicles for ovulation with...

Author(s)
Manshadi, M. M.; Rastegarnia, A.; Sani, S. E.
Publisher
Islamic Azad University, Rasht, Iran
Citation
Iranian Journal of Applied Animal Science, 2016, 6, 3, pp 557-562
Abstract

The objective was to compare luteal area (LA), luteal blood flow (LBF), and progesterone (P4) concentration before and after artificial insemination (AI) in pregnant and open cows in the diestrus preceding insemination and during the first 21 d after insemination. A number of 119 multiparous German ...

Author(s)
Berger, H.; Lietzau, M.; Tichy, A.; Herzog, K.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 104, pp 115-119
Abstract

This study evaluated the effect of equine chorionic gonadotropin (eCG) on reproductive performance, when incorporated into the first Ovsynch + P4 synchronization following planned start mating (PSM) in pasture-based lactating dairy cows. Two synchrony programs were compared in a randomized...

Author(s)
Rowe, S. M.; Pryor, L.; Tranter, W. P.; Hosie, J.; Cavalieri, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 125, pp 30-36
Abstract

Objective: The aim of the present study was to evaluate artificial insemination techniques on reproductive performance in Ghezel ewes synchronized with CIDR during breeding season. Methods: All ewes were treated with controlled internal drug release device (CIDR) inserted into the vagina of the...

Author(s)
Najafi, G.; Cedden, F.; Kohram, H.; Sharif, A. A.
Publisher
Iranian South East of Advanced Research Center (ISEARC), Iran
Citation
International Journal of Advanced Biological and Biomedical Research, 2014, 2, 12, pp 2898-2904

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