Results 121 to 130 of about 225,472 (253)
Reproductive tract modifications of the boar sperm surface [PDF]
The sperm cell has a unique, polarized, and segregated surface that is modified extensively by the changing environments in both the male and the female reproductive tracts. The sperm cannot refresh its surface, as protein translation and membrane recycling by intracellular vesicular transport have ceased upon its maturation.
openaire +4 more sources
The production of reactive oxygen species (ROS) in boar spermatozoa increases in refrigeration; this can have an impact on sperm quality and fertilization capacity.
I. Jofré +10 more
semanticscholar +1 more source
Bryo‐zoophily: a new look at the ecology of moss and animal interactions
ABSTRACT Interactions between plants and animals often play a major role in the ecology of both partners. While such interactions are well studied in vascular plants such as angiosperms and gymnosperms, they are less well understood in bryophytes. However, an extensive search of the scientific literature reveals several cases of known and suspected ...
Ryan J. Deregnier +2 more
wiley +1 more source
Heparin binding analysis of boar sperm and its relation with farrowing capacity [PDF]
New methods for the evaluation of semen quality according to in vivo reproductive data are useful tools for identifying boars of lower fertility among individuals with standard semen parameters. In this study, indirect fluorescence microscopy was used to
Cane, Fernando +3 more
core +2 more sources
Abstract Scherotheca is amongst the most diverse earthworm genera within Lumbricidae, exhibiting striking ecomorphological radiation—from small epigeic‐like forms to giant anecic species. Accurate systematics is critical for exploring such diversification.
Daniel Fernández Marchán +6 more
wiley +1 more source
The relationship between seminal plasma aspartate aminotransferase activity, sperm osmotic resistance test value, and semen quality in boars [PDF]
The relationship between the activity of aspartate aminotransferase (AspAT) in seminal plasma and the values of the osmotic resistance test (ORT) of acrosomal membranes and semen traits was examined on 120 young hybrid Pietrain and Duroc boars.
Jacyno Eugenia +5 more
core +1 more source
Seminal plasma metabolomics analysis of differences in liquid preservation ability of boar sperm.
Chenglei Song +12 more
semanticscholar +1 more source
DNA methylation patterns vary in boar sperm cells with different levels of DNA fragmentation
Sperm DNA integrity is considered essential for successful transmission of the paternal genome, fertilization and normal embryo development. DNA fragmentation index (DFI, %) has become a key parameter in the swine artificial insemination industry to ...
Abdolrahman Khezri +10 more
semanticscholar +1 more source
Background There is some controversy about the extent of changes in different sperm cell features in stored boar semen, especially regarding the potential role of the DNA fragmentation assay for assessment of sperm fertilizing ability.
Wiesław Bielas +4 more
doaj +1 more source
Effects of metabolic rate and sperm competition on the fatty-acid composition of mammalian sperm [PDF]
The sperm membrane is a key structure affecting sperm function and thus reproductive success. Spermatozoa are highly specialized and differentiated cells that undergo a long series of processes in the male and female reproductive tracts until they reach ...
Delbarco-Trillo, Javier +1 more
core +1 more source

