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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

Cervical patency is considered to be important for uterine drainage after mating or artificial insemination (AI), and failure to relax or premature tightening of the cervix can lead to persistent endometritis. This study investigated the hypothesis that cervical occlusion after AI increases...

Author(s)
Reilas, T.; Rivera del Alamo, M. M.; Liepina, E.; Yeste, M.; Katila, T.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 85, 4, pp 617-624
Abstract

Our objective was to determine the sperm distribution in the uterus and the number of sperm cells that reach the oviducts after 0.5, 1, 1.5 and 2 h of artificial insemination (AI). Thirty mares with a dominant follicle >35 mm in diameter and no bacterial growth or neutrophils detected in uterine...

Author(s)
Fiala, S. M.; Jobim, M. I. M.; Katila, T.; Gregory, R. M.; Mattos, R. C.
Publisher
Hippiatrika Verlagsgesellschaft mbH, Stuttgart, Germany
Citation
Pferdeheilkunde, 2008, 24, 1, pp 96-98
Abstract

Good-quality semen is a prerequisite for successful and profitable artificial insemination (AI) of modern dairy cattle. Fertility of the bulls is evaluated with andrological examinations and semen analyses, such as morphology. However, little attention has been paid to the inheritance of bull...

Author(s)
Attia, S.; Katila, T.; Andersson, M.
Publisher
Wiley-Blackwell, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2016, 51, 1, pp 54-58
Abstract

A new cooling method to store and transport semen in Styrofoam boxes at a temperature of 15°C to 20°C was developed. The new system was compared with the standard procedure in a field trial using pregnancy rate (PR) of inseminated mares as the benchmark. The standard transport method (F) involved...

Author(s)
Cuervo-Arango, J.; Nivola, K.; Väihkönen, L.; Katila, T.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2015, 35, 7, pp 611-616
Abstract

Author(s)
Katila, T.
Publisher
Wiley-Blackwell, Ames, USA
Citation
Equine reproduction, Volume 2, 2011, Ed.2, pp 2597-2606
Abstract

The majority of horse registries approve the use of artificial insemination, and horse breeding has widely taken benefit from the use of cooled-stored semen. New insights into cooled-semen technology open possibilities to reduce problems such as impaired semen quality after cooled-storage in...

Author(s)
Aurich, C.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2008, 107, 3/4, pp 268-275
Abstract

In this review, effects of the composition of the inseminate on uterine response and pregnancy rates in mares are discussed. The inseminate can differ for volume, sperm concentration, total sperm numbers, presence, absence, or proportion of seminal plasma, and extender composition. Semen can be...

Author(s)
Katila, T.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2005, 89, 1/4, pp 31-38
Abstract

This paper reviews factors affecting the reproductive efficiency of the mares and stallions. The foaling rates have improved during the decades thanks to the ultrasonography, the new exogenous hormones and the increased knowledge of the reproductive physiology and pathology. In many breeds, the use ...

Author(s)
Katila, T.; Nivola, K.; Reilas, T.; Sairanen, J.; Peltonen, T.; Virtala, A. M.
Publisher
Hippiatrika Verlagsgesellschaft mbH, Stuttgart, Germany
Citation
Pferdeheilkunde, 2010, 26, 1, pp 6-9
Abstract

The effects of different artificial insemination (AI) techniques and sperm doses on pregnancy rates of normal Hanoverian breed mares and mares with a history of barrenness or pregnancy failure using fresh or frozen-thawed sperm were investigated. The material included 187 normal mares (148 foaling...

Author(s)
Sieme, H.; Bonk, A.; Hamann, H.; Klug, E.; Katila, T.
Publisher
Elsevier Science Inc., New York, USA
Citation
Theriogenology, 2004, 62, 5, pp 915-928

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