Results 41 to 50 of about 18,590 (226)

The Effect of Semen Cryopreservation Process on Metabolomic Profiles of Turkey Sperm as Assessed by NMR Analysis

open access: yesBiology, 2022
Semen cryopreservation represents the main tool for preservation of biodiversity; however, in avian species, the freezing–thawing process results in a sharp reduction in sperm quality and consequently fertility.
Gianluca Paventi   +8 more
doaj   +1 more source

Effects of cryopreservation on the ultrastructure and enzyme activities of rare minnow (Gobiocypris rarus) sperm

open access: yesAquaculture Reports
In the process of testing the Chinese rare minnow (Gobiocypris rarus) sperm motility before and after cryopreservation, it was found that sperm motility decreased significantly after cryopreservation.
Qing Zhang   +6 more
doaj   +1 more source

Cryopreservation of Rooster Sperm

open access: yesPoultry Science, 1993
Successful cryopreservation of sperm requires: 1) selection of proper diluent; 2) selection of the best cryoprotectant; 3) determination of freezing and thawing rates for optimum retention of fertilization potential; and 4) removal of any materials deleterious to fertility (e.g., glycerol) before insemination.
openaire   +2 more sources

Cryopreservation Effects on Ram Sperm Ultrastructure [PDF]

open access: yesBiopreservation and Biobanking, 2020
Cryoprotectants are known to have protective effects against cryodamage to spermatozoa. In this study, the cryoprotective effects of two cryoprotectants (glycerol, ethylene glycol) and cryoprotectants/trehalose combinations on frozen-thawed ram spermatozoa were investigated at the ultrastructural level. For this purpose, ejaculates
Keskin, Nazan   +7 more
openaire   +7 more sources

Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika   +6 more
wiley   +1 more source

Computerized Sperm Motility and Application of Sperm Cryopreservation [PDF]

open access: yesArchives of Andrology, 1988
An objective method for measuring sperm motion characteristics was developed on an Intellect 100 Quantel Image Analysis System suitable for various image cytometric applications. It provided overall analysis of percent motility (% MS) as well as individual and mean measurements of motion characteristics, including vigor characteristics such as ...
J, Auger, J P, Dadoune
openaire   +2 more sources

Cryopreservation of Pike Perch Sperm in Hatchery Conditions [PDF]

open access: yes, 2008
Experiments were carried out on pike perch (Sander lucioperca L.) to find a method for stripping sperm without contamination by urine, to determine sperm concentration, and to fertilize large batches of eggs with cryopreserved sperm.
Urbányi, Béla   +3 more
core  

Sperm cryopreservation: effects on chromatin structure. [PDF]

open access: yes, 2013
Cryopreservation is a technique that can keep sperm alive indefinitely, enabling the conservation of male fertility. It involves the cooling of semen samples and their storage at -196°C in liquid nitrogen.
Francesco Lombardo   +7 more
core   +1 more source

Optimization of sterlet sperm concentration for cryopreservation [PDF]

open access: yes, 2021
One of the critical points in low temperature storage is the expense of storage capacities. Moreover, sperm concentration in a sample is not only a parameter for effective use of a cryobanks but also a parameter affecting cryopreservation outcomes ...
Nascimento, João Pedro   +7 more
core   +1 more source

Long-Term Experience of Sperm Cryopreservation in Cancer Patients in a Single Fertility Center

open access: yesThe World Journal of Men's Health, 2019
Purpose: Sperm cryopreservation before cancer treatment is the most effective method to preserve the fertility of male pa-tients. We present our 21 years experience with sperm cryopreservation for cancer patients, including an examination of se-men ...
Seung-Hun Song   +8 more
doaj   +1 more source

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