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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
Abstract

In horse breeding, quality assessment of semen before insemination is often requested. Non-laboratory-based techniques for objective analysis of sperm motility are thus of interest. The aim of this study was evaluating a portable device for semen analysis (Ongo sperm test) and its comparison with...

Author(s)
Buss, T.; Aurich, J.; Aurich, C.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2019, 54, 3, pp 514-519
Abstract

This study evaluated the effects of rainy and dry seasons on semen quality of bulls at Ungaran artificial insemination center. The semen was collected twice a week from one Ongole crossbred and one Simmental bulls, both at 5 years old, totaling 198 semen collections (99 of each bull). The results...

Author(s)
Isnaini, N.; Wahjuningsih, S.; Adhitama, E.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 2, pp Article 16
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

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
Abstract

Goat plays a vital role in the economy of poor and marginal farmers and very little efforts have been taken for their genetic improvement at farm level. The greatest problem still existing with the cryopreservation of goat spermatozoa is that even with the best preservation techniques available...

Author(s)
Ranjan, R.; Singh, S. P.; Gururaj, K.; Jindal, S. K.; Chauhan, M. S.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2018, 88, 10, pp 1160-1162
Abstract

Increasing use of fixed-time artificial insemination (FTAI) in beef cattle production has presented an opportunity for the use of fresh or chilled semen as an alternative to standard cryopreserved semen. The objective of this study was to examine in vitro sperm function and pregnancy rate of...

Author(s)
Satake, N.; Edwards, S. A. A.; Tutt, D.; McGowan, M. R.; Boe-Hansen, G. B.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2018, 53, 2, pp 414-422
Abstract

The article presents data on the sires of Holstein Black-and-White breed (n=9) aged 4-5 years. During 3 years of the study 6742 ejaculates were analyzed with the research the level of their distribution according to the number of spermatozoa: up to 1.5 billion; 1.6-2.0 billion; 2.1-3.0 billion;...

Author(s)
Abilov, A. I.; Yanchukov, I. N.; Turbina, I. S.; Kombarova, N. A.; Korneenko-Zhilyaev, Y. A.; Vinogradova, I. V.
Publisher
Redaktsiya zhurnala Zootekhniya, Moscow, Russia
Citation
Zootekhniya, 2018, No.1, pp 28-31
AbstractFull Text

The present study was undertaken to compare the performance of 8 (eight) breeding bulls of three different genetic groups such as Brahman × local (4 bulls), Holstein Friesian × local (2 bulls) and Red Chittagong (2 bulls) based on libido, semen quality and fertility. Semen parameters were evaluated ...

Author(s)
Islam, M. M.; Apu, A. S.; Hoque, S. A. M.; Ali, M. Y.; Karmaker, S.
Publisher
Bangladesh Animal Husbandry Association, Mymensingh, Bangladesh
Citation
Bangladesh Journal of Animal Science, 2018, 47, 2, pp 61-67
Abstract

In the current era of genomic selection, there is an increased demand to collect semen from genomically selected sires at a young age. The objective of this study was to assess the effect of bull age, ejaculate number, and season of collection on semen production (ejaculate volume, sperm...

Author(s)
Murphy, E. M.; Kelly, A. K.; O'Meara, C.; Eivers, B.; Lonergan, P.; Fair, S.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2018, 96, 6, pp 2408-2418

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