Results 61 to 70 of about 18,590 (226)
Lowering Sperm Dose Rates in Frozen Semen for Bovine Artificial Breeding [PDF]
, 2007 The New Zealand Dairy industry relies on artificial breeding to produce high genetic merit replacement stock. Proven bull semen is extended and preserved as either ambient temperature product or as frozen doses.
Pitt, Colin John
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Andrology, EarlyView.ABSTRACT Background Testicular germ cell tumours (TGCT) are the most common malignancies among young men and represent a major threat to reproductive health. Both the disease itself and oncological treatments, particularly chemotherapy, can compromise spermatogenesis and semen quality.
Ondrej Sanovec +18 more
wiley +1 more source
Role of oxidative stress and antioxidants in domestic and non-domestic cat spermatozoa [PDF]
, 2010 Living cells, including spermatozoa, stored under aerobic conditions require oxygen to support their normal metabolism. Excessive levels of metabolites (reactive oxygen species; ROS) can cause cell damage or lipid peroxidation.
Thuwanut, Paweena
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Improvement of Mouse Spermatozoa Freezing at ‐80°C With Ascorbic Acid 2‐Glucoside at Thawing Phase
Andrology, EarlyView.ABSTRACT Background Sperm cryopreservation is the most common method to maintain a great number of mutant mouse lines. However, the use of liquid nitrogen (LN2) for freezing presents considerable problems in terms of cost, safety, and accessibility. For this reason, the storage of semen samples at ‐80° in ultra‐freezers has been increasingly used in ...
Alessia Paradiso +6 more
wiley +1 more source
Agricultural Science and Practice, 2023 Background. Cryopreservation of spermatozoa with the best morphofunctional characteristics may allow their use for assisted reproductive technologies in goat breeding throughout the year to effectively increase livestock. Aim.
A. Bogdaniuk, M. Petrushko
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro +6 more
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Klinefelter syndrome (KS) is characterized by marked phenotypic heterogeneity that might be influenced by genetic modifiers, including androgen receptor (AR) repeat length (CAGn and GGCn). The clinical relevance of these repeat lengths in patients with KS before testosterone replacement therapy (TRT) remains unclear.
Andrea Graziani +8 more
wiley +1 more source
The Effects of Different Cryoprotectants on Stallion Epididymal Spermatozoa [PDF]
, 2011 Any event that makes semen collection or mating impossible, such as death, castration, or injury, may terminate a stallion’s breeding career. Fortunately, stallion sperm which are capable of fertilization can be harvested from a region adjacent to the ...
Beattie, Cleo
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Difference values of sperm parameters during cryopreservation. [PDF]
, 2015 Data are presented as mean ± SE. Superscripts A, B, C, and D indicate significant differences between cryopreservation steps; a,b,c, and d indicate significant differences between sperm parameters by one-way analysis of variance (P < 0.05, n = 9 ...
Md Saidur Rahman (468875) +4 more
core +1 more source
Andrology, EarlyView.ABSTRACT Background Genetic variability within the follicle‐stimulating hormone (FSH)‐related genes might contribute to phenotypic heterogeneity in patients with Klinefelter syndrome (KS), yet its clinical impact on sperm retrieval remains unclear. Objectives To investigate the association between FSHB c.211 G > T and FSHR polymorphisms (c.2039 A > G ...
Andrea Graziani +6 more
wiley +1 more source