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Abstract

Studies involving different methods and techniques of cryopreservation and its interactions with the conception rates in artificial insemination (AI) programs are reported in the literature. This study evaluated the sperm kinetics, plasma membrane integrity, and fertility rates of mares inseminated ...

Author(s)
Maziero, R. R. D.; Guaitolini, C. R. de F.; Guasti, P. N.; Monteiro, G. A.; Martin, I.; Silva, J. P. M. da; Crespilho, A. M.; Papa, F. O.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2019, 72, pp 37-40
Abstract

The aim of this study was to investigate the influence of sperm concentration, sperm quality, and semen deposition site on uterine inflammatory response in mares. Twenty-five mares with healthy reproductive tracts were used for artificial inseminations (AIs) using frozen-thawed semen and divided...

Author(s)
Gomes, G. M.; Crespilho, A. M.; Leão, K. M.; Jacob, J. C. F.; Gomes, L. P. M.; Segabinazzi, L. G.; Papa, F. O.; Alvarenga, M. A.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2019, 73, pp 43-47
Abstract

The purpose of the present study was to compare two protocols for equine frozen semen programs using either postovulation insemination or fixed-time insemination (FT), evaluating both pregnancy rates and intrauterine fluid (IUF) accumulation after artificial insemination with semen obtained from...

Author(s)
Avanzi, B. R.; Ramos, R. dos S.; Araujo, G. H. M.; Fioratti, E. G.; Trinca, L. A.; Dell'Aqua, J. A., Jr.; e Oña, C. M. M.; Zahn, F. S.; Martin, I.; Alvarenga, M. A.; Papa, F. O.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 83, 9, pp 1389-1393
Abstract

Sperm concentration is traditionally evaluated by counting cells in a hemocytometric Neubauer chamber, often a highly subjective, time-consuming, and laborious technique prevalent in andrology laboratories around the world. However, the Computer-Assisted Semen Analysis (CASA) represents a more...

Author(s)
Crespilho, A. M.; Chiaradia, L.; Cortez, A.; Dinelli, M.; Papa, F. O.; Gomes, G. M.; Peixoto Júnior, K. da C.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil
Citation
Brazilian Journal of Veterinary Research and Animal Science, 2017, 54, 3, pp 247-252
Abstract

Semen cryopreservation is still considered suboptimal due to lower fertility when compared to fresh semen. The reasons for the loss of fertility are various and related to irreversible damage caused to the cells during the freeze-thaw process. An alternative to conventional cryopreservation...

Author(s)
Crespilho, A. M.; Papa, F. O.; Santos, M. de P.; Sa Filho, M. F. de
Publisher
Science Publications, New York, USA
Citation
American Journal of Animal and Veterinary Sciences, 2012, 7, 4, pp 175-179
Abstract

Degenerative changes of the endometrium are directly related to age and fertility in mares. Chronic degenerative endometritis (CDE) is correlated with uterine fluid retention and reduced ability to clear uterine inflammation. Recent research in the areas of equine surgery and sports medicine has...

Author(s)
Reghini, M. F. S.; Ramires Neto, C.; Segabinazzi, L. G.; Chaves, M. M. B. C.; Dell'Aqua, C. de P. F.; Bussiere, M. C. C.; Dell'Aqua, J. A., Jr.; Papa, F. O.; Alvarenga, M. A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 86, 2, pp 516-522
AbstractFull Text

Sperm cryopreservation success depends upon the maintenance of spermatozoa fertility potential. Sperm cells must preserve both integrity and functionality of several cell structures. The stabilization phase must allow the exit of water from the sperm cells via osmosis. This study aimed to compare...

Author(s)
Chacur, M. G. M.; Dias, H. S.; Papa, P. de M.; Papa, F. O.; Melo-Onã, C. M.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2012, 33, 5, pp 1923-1929
AbstractFull Text

The increase number in the livestock can be acquired with the use of bio techniques as artificial insemination. The aim of this study was to test the viability of new extenders of freezing semen for bulls classified as very good and regular freezability. Ten zebu bulls was used, being classified as ...

Author(s)
Chacur, M. G. M.; Dias, H. S.; Papa, F. O.; Louvison, B. A.; Calesco, M. M.; Papa, P. de M.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2012, 19, 3, pp 346-355
Abstract

In order to modulate uterine inflammatory response and evaluate the effect of corticosteroid therapy on fertility, 90 cycles of 45 mares were used for artificial insemination with frozen semen, using three different protocols: G1 - inseminated with frozen semen (800×106 viable spermatozoa...

Author(s)
Papa, F. O.; Dell'aqua Junior, J. A.; Alvarenga, M. A.; Melo, C. M.; Zahn, F. S.; Lopes, M. D.
Publisher
Hippiatrika Verlagsgesellschaft mbH, Stuttgart, Germany
Citation
Pferdeheilkunde, 2008, 24, 1, pp 79-82
Abstract

The use of frozen semen for artificial insemination is the main approach utilised for the genetic improvement of most domesticated species. The advantages include lower transportation costs, continuous availability of semen, fewer occurrences of sexually transmitted diseases and the incorporation...

Author(s)
Zorzetto, M. F.; Martin, I.; Sancler-Silva, Y. F. R.; Zoca, S.; Freitas-Dell'Aqua, C. P.; Papa, F. O.; Ramos, A. A.; Nunes, J. F.; Salgueiro, C. C. M.; Oba, E.
Publisher
Wiley, Berlin, Germany
Citation
Andrologia, 2018, 50, 1, pp e12830

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