Results 21 to 30 of about 7,680,621 (399)

Effect of age, season and sire on semen quality traits in Frieswal breeding bulls

open access: yesIndian Journal of Animal Sciences, 2023
The present study was undertaken to assess the effect of season of semen collection, age and sire on semen quality of Frieswal breeding bulls. The data on 8113 semen ejaculates of 155 bulls born to 34 Frieswal sires were utilized for the study.
S TYAGI   +7 more
doaj   +1 more source

Semen quality in Greenland [PDF]

open access: yesInternational Journal of Circumpolar Health, 2004
To quantify semen quality in the Greenlandic population.A cross-sectional study including recently proven fertile men from four regions including nine municipalities and one settlement in Greenland.The samples were analysed for sperm cell concentrations and motility using standard methods.In total 201 semen samples were collected. The median sperm cell
Toft, Gunnar   +3 more
openaire   +4 more sources

Supplementation of Avian Semen Extenders with Antioxidants to Improve Semen Quality—Is It an Effective Strategy?

open access: yesAntioxidants, 2021
Oxidative stress in sperm is a phenomenon related to the increasing rate of oxidation of cellular components and the excessive production of reactive oxygen species (ROS).
A. Partyka, W. Niżański
semanticscholar   +1 more source

Macro- and microelements in serum and seminal plasma as biomarkers for bull sperm cryotolerance

open access: yesActa Veterinaria Scandinavica, 2021
Background Wide variation in fertility rates is observed when using frozen bull semen, even when the bulls have met quality standards for semen production.
Maja Zakošek Pipan   +5 more
doaj   +1 more source

A comparative proteomic study of high and low semen quality seminal plasma in drakes

open access: yesPoultry Science, 2022
Semen quality is the most important indicator in evaluating drake fecundity. At present, the low semen quality has become a major factor restricting the development of artificial insemination (AI) technology in ducks. Numerous studies have indicated that
Bincheng Tang   +8 more
doaj   +1 more source

Genetic parameters of semen quality traits and genetic correlations with service sire nonreturn rate in Nordic Holstein bulls.

open access: yesJournal of Dairy Science, 2021
Despite the importance of the quality of semen used in artificial insemination to the reproductive success of dairy herds, few studies have estimated the extent of genetic variability in semen quality traits.
G. Gebreyesus   +3 more
semanticscholar   +1 more source

The effect of age and abstinence time on semen quality: a retrospective study

open access: yesAsian Journal of Andrology, 2021
This study analyzed the effects of male age and abstinence time on semen quality and explored the best abstinence time for Chinese males among different age groups. Semen parameters, including sperm kinetics, morphology, and DNA fragmentation index (DFI),
Gangxin Chen   +9 more
semanticscholar   +1 more source

Association between semen collection time and semen parameters: an observational study

open access: yesAsian Journal of Andrology, 2023
The process of semen collection plays a key role in the quality of semen specimens. However, the association between semen collection time and semen quality is still unclear.
Shun Bai   +11 more
doaj   +1 more source

Does obesity based on body mass index affect semen quality?—A meta‐analysis and systematic review from the general population rather than the infertile population

open access: yesAndrologia, 2021
Whether obesity affects the quality of semen has become the focus of research. However, there are some deficiencies in the past research, because the vast majority of known infertile patients were included in the study samples.
Su Wang   +4 more
semanticscholar   +1 more source

Semen quality and production potential of Indian buffalo breeds

open access: yesIndian Journal of Animal Sciences, 2021
The objective of the study was to evaluate non-genetic factors on semen traits. The overall means for the semen quality traits: ejaculate volume, sperm concentration, total sperm, mass activity, initial and post thaw motility, hypoosmotic swelling test,
K G BHAVE   +8 more
doaj   +1 more source

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