Results 361 to 370 of about 740,952 (392)

Metabolomic Analysis of Cauda Epididymal Fluid in Yaks and Cattle. [PDF]

Animals (Basel)
Yang G, Yang X, Liu D, Zhou W, Zhou A, Xiong Y, Xiong X, Fu W, Li J, Lan D, Yin S.   +10 more
europepmc   +1 more source

Season affects sperm quality, seminal extracellular vesicles, and antioxidant-related genes in Egyptian Buffalo bulls. [PDF]

Sci Rep
Shahat AM, Taqi MO, Hozyen HF, Galal SM, Sakr AAM, Shedeed SM, Mahmoud KGM, El Hameed ARA, Hashem MF, Kastelic JP, Ibrahim S.   +10 more
europepmc   +1 more source

Preliminary Evaluation of a Tris-Based Extender for the Semen Examination Procedure in a Hybrid Falcon (<i>Falco rusticolus × Falco cherrug</i>). [PDF]

Case Rep Vet Med
Govoni M, Milani C, Martini M, Contiero B, Gerardi G, Mollo A, Segato S.   +6 more
europepmc   +1 more source

Beyond concentration: the role of inseminated glycerol volume on fertility outcomes in chickens. [PDF]

Poult Sci
Tsai MY, Hung HW, Chen YH, Chen PC, Liao CC, Xu HY, Lin HH.   +6 more
europepmc   +1 more source

Multi-omics analysis of testis after long-term exposure to polystyrene nanoplastics reveals premature testicular aging and age-dependent damage in mice. [PDF]

Part Fibre Toxicol
Feng H, Huang Y, Zhang H, Li Z, Cen X, Zhuang Y, Zhang X, Ma K, Ruan S, Yi R, Huang Z, Liu W, Song M, Huang Z, Chen Z.   +14 more
europepmc   +1 more source

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Sperm-Micromotors for Cargo-Delivery through Flowing Blood.

ACS Nano, 2020
Micromotors are recognized as promising candidates for untethered micromanipulation and targeted cargo-delivery in complex biological environments.
Haifeng Xu, M. Medina‐Sánchez, M. Maitz, C. Werner, O. Schmidt   +4 more
semanticscholar   +1 more source

Sperm size and sperm competition in birds

Proceedings of the Royal Society of London. Series B: Biological Sciences, 1992
In a sample of 20 species of North American passerine birds we found no relation between sperm size and mating system like that previously reported in mammals (Gomendio & Roldan (Proc. R. Soc. Lond. B 243, 181 (1991)). Instead, we found a positive correlation between sperm length and the length of female sperm storage tubules (SSTS) and a negative ...
James V. Briskie, Robert Montgomerie
openaire   +3 more sources

Sperm‐sperm associations in the loris epididymis

Gamete Research, 1987
AbstractIn a few mammals, the passage of maturing spermatozoa through the epididymis is characterized by development of persistent associations between one or more neighboring cells over the acrosomal region. The converse situation is described here in the loris, Nycticebus coucang, a prosimian primate.
J. M. Bedford, David M. Phillips
openaire   +3 more sources

Sperm centriole disfunction and sperm immotility

Molecular and Cellular Endocrinology, 2000
The two main causes of complete or nearly complete asthenozoospermia are necrozoospermia (presence of only non-viable spermatozoa) and the different ultrastructural abnormalities of spermatozoa. Ultrastructural alterations may affect also the function of the sperm centrosome, which can result in impaired motility.
openaire   +3 more sources

Sperm Capacitation and Acrosome Reaction in Mammalian Sperm.

Advances in Anatomy, Embryology and Cell Biology, 2016
Physiological changes that endow mammalian sperm with fertilizing capacity are known as sperm capacitation. As part of capacitation, sperm develop an asymmetrical flagellar beating known as hyperactivation and acquire the ability to undergo the acrosome reaction. Together, these processes promote fertilizing competence in sperm. At the molecular level,
Cintia Stival, L. C. P. Puga Molina, Bidur Paudel, M. Buffone, P. Visconti, D. Krapf   +5 more
semanticscholar   +4 more sources