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Abstract

This study evaluated effects of equine chorionic gonadotropin (eCG) on fertility of 679 crossbred (Bos taurus × Bos indicus) lactating grazing cows synchronized for fixed-time AI (FTAI). At a random day of the estrous cycle cows received an intravaginal progesterone (P4) implant, 2 mg estradiol...

Author(s)
Prata, A. B.; Pontes, G. C. S.; Monteiro Júnior, P. L. J.; Drum, J. N.; Wiltbank, M. C.; Sartori, R.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 98, pp 36-40
Abstract

This study compares in two experiments the responses of lactating dairy cows to four different progesterone-based protocols for fixed-time artificial insemination (FTAI) in terms of their effects on follicular/luteal dynamics and fertility. The protocols consisted of a progesterone intravaginal...

Author(s)
Garcia-Ispierto, I.; López-Gatius, F.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2014, 60, 6, pp 426-432
Abstract

This study compared the efficiency of a five-day or standard (nine-day) progesterone-based regimen combined with equine chorionic gonadotrophin (eCG) in a fixed-time AI (FTAI) protocol for dairy cows. The data examined were derived from 3577 inseminations conducted in three dairy herds. Animals...

Author(s)
Garcia-Ispierto, I.; Roselló, M. A.; Rensis, F. de; López-Gatius, F.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2013, 59, 6, pp 544-548
Abstract

This study was designed to test the treatment with prostaglandin F (PGF) plus equine chorionic gonadotrophin (eCG) and GnRH 48 h later (PEG protocol) followed by fixed-time AI (FTAI) in dairy cows with silent ovulation (cows with a mature corpus luteum and no signs of estrus detected in the...

Author(s)
Garcia-Ispierto, I.; López-Gatius, F.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2013, 59, 4, pp 393-397
Abstract

The cryopreservation of epididymal sperm is important to preserve genetic material from valuable deceased males. This study evaluated the viability of sperm samples from eight stallions under three conditions: (1) collected using an artificial vagina (EJ-0 h), (2) recovered from the epididymal ...

Author(s)
Monteiro, G. A.; Papa, F. O.; Zahn, F. S.; Dellaqua Júnior, J. A.; Melo, C. M.; Maziero, R. R. D.; Avanzi, B. R.; Alvarenga, M. A.; Guasti, P. N.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Animal Reproduction Science, 2011, 127, 3/4, pp 197-201
Abstract

The aim of this study is to determine the level of some important production characteristics and to investigate some environmental factors affecting fertility traits of purebred Arabian mares raised at the Anadolu state farm in Eskesiher, Turkey for the last 30 years. Data of fertility traits from...

Author(s)
Cİlek, S.
Publisher
Medwell Online, Faisalabad, Pakistan
Citation
Journal of Animal and Veterinary Advances, 2009, 8, 2, pp 389-396
Abstract

AIMS: To examine the gestation lengths and occurrence of daytime foaling of Standardbred mares foaling outdoors at stud farms in Southland, New Zealand (latitude 45°S). METHODS: Data were collected prospectively at two commercial Standardbred stud farms (Farms A and B), during the 2008/9 and...

Author(s)
Dicken, M.; Gee, E. K.; Rogers, C. W.; Mayhew, I. G.
Publisher
New Zealand Veterinary Association, Wellington, New Zealand
Citation
New Zealand Veterinary Journal, 2012, 60, 1, pp 42-46
Abstract

Two experiments were performed to test the hypothesis that elevated progesterone concentrations impair pregnancy rate to timed artificial insemination (TAI) in postpuberal Nelore heifers. In Experiment 1, postpuberal Nelore heifers (n=398) received 2 mg estradiol benzoate (EB) and either a new...

Author(s)
Dias, C. C.; Wechsler, F. S.; Day, M. L.; Vasconcelos, J. L. M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2009, 72, 3, pp 378-385
Abstract

One hundred and twenty-six suckled crossbred cows (Bos taurus × Bos indicus), with body condition score ≥3 (1-5 point scale), were employed in the present study to evaluate the effectiveness of intravaginal progestin-releasing sponges (IVS) for shortening anoestrous interval. Fifty-four cows were...

Author(s)
Gutiérrez, J. C.; Palomares, R.; González, R.; Portillo, G.; Montero-Urdaneta, M.; Rubio-Guillén, J.; Hernández-Fonseca, H. J.; Soto-Belloso, E.
Publisher
Blackwell Publishing, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2009, 44, 1, pp 48-54
Abstract

BONADONNA, T. La zootecnia dell'Italia Meridionale ed Insulare e la fecondazione artificiale. [Zootechnics in southern Italy and the islands and artificial insemination]: 23-32. MAROSFY, L. Osservazioni intorno alia raccolta di sperma equino. [Observations on semen collection from horses]: 33-35....

Publisher
Milano : A. Milesi e Figli.,
Citation
Fiera per lo Sviluppo Autarchico dell'Agricoltura Italiana, Foggia-25-30 maggio 1940-XVIII. Atti della IIa Adunata Nazionale dei Veterinari per la Fecondazione Artificiale, 25-26 maggio 1940-XVIII., 1940, pp viii + 328 pp.

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