Results 21 to 30 of about 15,364,011 (346)

Exposure to multiple metals/metalloids and human semen quality: A cross-sectional study.

open access: yesEcotoxicology and Environmental Safety, 2021
BACKGROUND Exposure to metals/metalloids, including essential and nonessential elements, has been associated to male reproductive health in animals. However, findings from human studies are inconsistent. OBJECTIVES To investigate the impact of exposure
A. Calogero   +12 more
semanticscholar   +1 more source

Effects of a Lifestyle Change Intervention on Semen Quality in Healthy Young Men Living in Highly Polluted Areas in Italy: The FASt Randomized Controlled Trial.

open access: yesEuropean Urology Focus, 2021
BACKGROUND Human semen quality is affected by lifestyle and environmental factors. OBJECTIVE To evaluate the short-term effects of a diet and physical activity intervention on semen quality of healthy young men living in highly polluted areas of Italy.
L. Montano   +15 more
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

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

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

ESTICULAR ULTRASONOGRAMS PIXEL INTENSITY AS INDICATOR FOR SEMEN QUALITY OF BUFFALO BULLS [PDF]

open access: yesJournal of Animal and Poultry Production, 2006
This study aimed to determine the relationship between semen quality and testicular pixel intensity derived from image analysis of ultrasonograms in buffalo bulls and the possibility of using this technique to predict semen quality.
S. Darwish,
doaj   +1 more source

Semen quality in sheep

open access: yesVeterinarska stanica, 2022
Reproductive evaluation, the selection of individual breeders, and reproductive biotechnologies are important tools in developing productive and reproductive rates.
Yurani Arbodela Marin   +6 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

Sperm Transcripts Associated With Odorant Binding and Olfactory Transduction Pathways Are Altered in Breeding Bulls Producing Poor-Quality Semen

open access: yesFrontiers in Veterinary Science, 2022
Spermatozoa carries a reservoir of mRNAs regulating sperm functions and fertilizing potential. Although it is well recognized that a considerable proportion of high genetic merit breeding bulls produce poor-quality semen, the transcriptomic alterations ...
Thirumalaisamy Karuthadurai   +10 more
doaj   +1 more source

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