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Abstract

Artificial insemination (AI) with cooled stallion semen has increased markedly during the last decades in all countries, but fertility is often lower than when fresh semen or natural mating is used. The objective of this study was to examine field data (1634, cycles 523 Standardbred (SB) mares, 575 ...

Author(s)
Kareskoski, M.; Venhoranta, H.; Virtala, A. M.; Katila, T.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 127, pp 7-14
Abstract

This study aimed to assess characteristics of bovine cryopreserved sperm and evaluate its relation to field fertility in fixed-time artificial insemination (FTAI). Semen samples of 16 bulls were used to inseminate 811 Nellore cows, and four of these bulls were also used to inseminate 101 Nellore...

Author(s)
Okano, D. S.; Penitente Filho, J. M.; León, V. E. G.; Maitan, P. P.; Silveira, C. O.; Waddington, B.; Díaz-Miranda, E. A.; Costa, E. P. da; Guimarães, S. E. F.; Guimarães, J. D.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2019, 54, 3, pp 604-612
AbstractFull Text

The aim of this study was to evaluate the pregnancy and natality rate of artificial insemination (AI) in alpacas, using fresh semen, with one and two services, in Cusco, Peru. Semen from 10 alpacas was collected by the post-copula method between January and March, using ejaculates that had volume >...

Author(s)
García V., W.; Alarcón B., V.
Publisher
Universidad Nacional Mayor de San Marcos, Lima, Peru
Citation
Revista de Investigaciones Veterinarias del Perú (RIVEP), 2019, 30, 2, pp 760-767
Abstract

An equilibration period of approximately 3-4 h prior to semen cryopreservation is standard practice for maintaining membrane integrity and motility of bull sperm. However, a number of studies indicate that an overnight equilibration period prior to freezing results in improved post-thaw semen...

Author(s)
Murphy, E. M.; Eivers, B.; O'Meara, C. M.; Lonergan, P.; Fair, S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 108, pp 217-222
Abstract

The aim of the present study was the establishment of an effective protocol for cryopreservation of psittacine semen. Therefore, pooled semen samples of 30 cockatiels (Nymphicus hollandicus) were diluted with modified Lake diluent (1:4), partitioned into four equal parts. Three portions were mixed...

Author(s)
Schneider, H.; Fischer, D.; Failing, K.; Ehling, C.; Meinecke-Tillmann, S.; Wehrend, A.; Lierz, M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 110, pp 8-17
Abstract

Alpha linolenic acid (ALA) is integral component of cell membrane that protects the cell in stressful events and involves in many metabolic pathways. It was hypothesized that ALA have the ability to protect the structural and functional integrity of buffalo spermatozoa during freeze-thawing....

Author(s)
Ejaz, R.; Ansari, M. S.; Rakha, B. A.; Qadeer, S.; Husna, A. U.; Akhter, S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 104, pp 1-6
Abstract

The aim of this study was to assess the effect of storage temperature, nitrogen (N2) gassing and sperm concentration on in vitro characteristics and calving rate (CR) following artificial insemination (AI) of liquid bull semen stored in INRA96. In Experiment 1 the effect of liquid bull semen...

Author(s)
Murphy, E. M.; Eivers, B.; O'Meara, C. M.; Lonergan, P.; Fair, S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 108, pp 223-228
Abstract

This study examined the effects of mangosteen peel extract (MPE) on cryopreservation and fertility of goat sperm. The semen was collected from a buck aged at 3 years old with the body weight of 60 kg. After the initial evaluation, the semen was then diluted in the Tris-egg yolk extender...

Author(s)
Isnaini, N.; Ihsan, M. N.; Wahjuningsih, S.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 4, pp Article 53
Abstract

Artificial insemination (AI) is the single most important assisted reproductive technique devised to facilitate the genetic improvement of livestock. In the swine industry, it has broadly replaced natural service over the last number of decades which has been made possible by the high pregnancy...

Author(s)
Fair, S.; Romero-Aguirregomezcorta, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 137, pp 15-22
Abstract

Little is known of the genetic variability in semen quality traits in cattle and their inter-relationships. The objective of the present study was to estimate genetic parameters for a range of semen quality measures. The data consisted of 35,573 ejaculates from 787 artificial insemination bulls of...

Author(s)
Berry, D. P.; Eivers, B.; Dunne, G.; McParland, S.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 123, pp 202-208

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