Výsledky vyhledávání - "Anders Birck"

Assessment of Sperm DNA Integrity and Implications for the Outcome of ICSI Treatments

Publikováno v: Intracytoplasmic Sperm Injection ISBN: 9783319704968

The nuclear genome in mature sperm is normally fairly resistant to the oxidative stress caused by cell metabolism. When the integrity of the sperm DNA is insufficient, the DNA may become damaged during the “journey” to the oocyte or during fertil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be8b9a263d0d940d0fa139af460b1519
https://doi.org/10.1007/978-3-319-70497-5_6

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Comparison of Methods for Assessment of Sperm DNA Damage (Fragmentation) and Implications for the Assisted Reproductive Technologies

Autor: Preben Christensen, Anders Birck

Publikováno v: Screening the Single Euploid Embryo ISBN: 9783319168913

Few topics have been more misunderstood than sperm DNA damage. Sperm is particularly vulnerable to DNA damage as the mature sperm does not have any repair mechanism and also lacks antioxidant defense enzymes. The damage appears to occur in two steps:

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20c7bbce9b6cfaa0f16cf62fc6ac4485
https://doi.org/10.1007/978-3-319-16892-0_5

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Relationship among seminal quality measures and field fertility of young dairy bulls using low-dose inseminations

Autor: S. Borchersen, Preben Christensen, Johanna Pedersen, Rodrigo Labouriau, Gry Boe-Hansen, Anders Birck

Publikováno v: Christensen, P, Labouriau, R, Birck, A, Boe-Hansen, G B, Pedersen, J & Borchersen, S 2011, ' Relationship among seminal quality measures and field fertility of young dairy bulls using low-dose inseminations ', Journal of Dairy Science, vol. 94, no. 4, pp. 1744-1754 . https://doi.org/10.3168/jds.2010-3087
Aarhus University
Christensen, P, Labouriau, R, Birck, A, Boe-Hansen, G B, Pedersen, J & Borchersen, S 2011, ' Relationship among seminal quality measures and field fertiligy of young dairy bulls using low-dose inseminations ', Journal of Dairy Science, vol. 94, pp. 1744-1754 .

Optimal use of genetically superior bulls through artificial insemination (AI) is highly dependent on precise assessment of seminal quality which allows for reasonable estimations of field fertility with normal or low-dose inseminations. In the prese

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18dfb2dd5c0d5370274ed37ad20765f6
https://pure.au.dk/portal/da/publications/relationship-among-seminal-quality-measures-and-field-fertility-of-young-dairy-bulls-using-lowdose-inseminations(8af41e9b-6ca6-4ed7-84f9-bf0a2a8884f7).html

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In vitro induction of the acrosome reaction in bull sperm and the relationship to field fertility using low-dose inseminations

Autor: Johanna Pedersen, Anders Birck, S. Borchersen, Preben Christensen, Rodrigo Labouriau

Publikováno v: Birck, A, Christensen, P, Labouriau, R, Pedersen, J & Borchersen, S 2010, ' In vitro induction of the acrosome reaction in bull sperm and the relationship to field fertility using low-dose inseminations ', Theriogenology, vol. 73, no. 9, pp. 1180-1191 . https://doi.org/10.1016/j.theriogenology.2009.10.010

The acrosome reaction (AR) is a prerequisite for normal sperm fertilizing capability and can be studied in vitro after induction by various agents. The efficacy of a sperm population to undergo the AR in vivo is expected to influence male fertilizing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35c75f4c6cba691cd29052114112b65d
https://pure.au.dk/portal/da/publications/in-vitro-induction-of-the-acrosome-reaction-in-bull-sperm-and-the-relationship-to-field-fertility-using-lowdose-inseminations(fde4e470-8b38-11df-a7a3-000ea68e967b).html

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Dynamics of the induced acrosome reaction in boar sperm evaluated by flow cytometry

Autor: Preben Christensen, Rodrigo Labouriau, Anders Birck

Publikováno v: Birck, A, Labouriau, R & Christensen, P 2009, ' Dynamics of the induced acrosome reaction in boar sperm evaluated by flow cytometry ', Animal Reproduction Science, vol. 115, no. 1-4, pp. 124-136 . https://doi.org/10.1016/j.anireprosci.2008.10.017

The present study investigated the dynamics of the in vitro induced acrosome reaction (AR) in boar sperm in response to medium composition, incubation time and ionophore concentration. The AR is a prerequisite for normal sperm fertilizing capability

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ab42af8fbc7549d18a5a00712ffa2a9
https://pubmed.ncbi.nlm.nih.gov/19084358

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309 DIFFERENCES IN PRONUCLEUS FORMATION RATES BETWEEN BULLS IN RESPONSE TO GAMMA IRRADIATION OF FROZEN - THAWED SEMEN

Autor: B. Avery, Mikael Jensen, Gry Boe-Hansen, I.B. Bøgh, M.M. Petersen, Anders Birck

Publikováno v: Reproduction, Fertility and Development. 19:270

Gamma irradiation induces DNA damage to mature bovine spermatozoa but does not affect motility, membrane integrity, or function (Fatehi et al. 2006 J. Androl. 27, 176–188), making it a useful model to evaluate the effect of fertilization with DNA-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b54160881346ac64a85d083a37d6dd6b
https://doi.org/10.1071/rdv19n1ab309

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