Results 11 to 20 of about 15,364,011 (346)

Bull semen quality parameters and impact of exogenous factors on semen quality [PDF]

open access: yesVeterinarski Glasnik, 2014
Use of quality sires in the artificial insemination of cattle leads to the increased production in cattle breeding. In EU countries and the countries which cooperate in semen trade with EU countries bulls’ health status and minimal criteria for ...
Snoj Tomaž
doaj   +3 more sources

Impaired semen quality in trans women: prevalence and determinants

open access: yesHuman Reproduction, 2020
STUDY QUESTION What is the semen quality in trans women at time of fertility preservation, prior to the start of gender-affirming hormone treatment? SUMMARY ANSWER Before the start of gender-affirming hormone treatment, semen quality in trans women was ...
De I. Nie   +7 more
semanticscholar   +2 more sources

The Presence of Microplastics in Human Semen and Their Associations with Semen Quality

open access: yesToxics
Microplastics (MPs) are becoming one of the most serious environmental threats worldwide. They have been shown to induce male reproductive toxicity in animal studies.
Yi Guo   +5 more
semanticscholar   +4 more sources

Thyroid dysfunction and semen quality [PDF]

open access: yesInternational Journal of Immunopathology and Pharmacology, 2018
Thyroid hormones act on testis in multiple ways and exert their effect on different cell types, including Leydig and Sertoli cells, and germ cells.
S. La Vignera, R. Vita
semanticscholar   +3 more sources

The Interaction between Canine Semen Bacteria and Semen Quality Parameters

open access: yesAnimals
Assessing canine semen quality helps to detect infertility in males, but identifying factors that influence canine semen quality is a complicated task. The objective of this study was the assessment of the potential influence of bacteria found in canine ...
Šarūnė Sorkytė   +8 more
doaj   +2 more sources

Environmental factors and semen quality

open access: yesInternational Journal of Occupational Medicine and Environmental Health, 2009
An increasing number of reports suggest that chemical and physical agents in the environment, introduced and spread by human activity, may affect male fertility in humans. This article aims at evaluating the impact of environmental exposures (pesticides, phthalates, PCBs, air pollution, trihalomethanes (THMs), mobile phones) on semen quality, by ...
Jurewicz, Joanna   +3 more
openaire   +4 more sources

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
Gunnar Toft   +3 more
openaire   +3 more sources

Profiling of seminal plasma proteins to identify the fertility of Simmental bull with low semen quality

open access: yesJournal of Advanced Veterinary and Animal Research, 2023
Objective: The present study analyzed the seminal plasma proteome and possible relationships between proteins and semen quality in azoospermic and normal Simmental bulls.
Abdullah Baharun   +6 more
doaj   +1 more source

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

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

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