Results 31 to 40 of about 132,648 (346)

Complete meiosis in rat prepubertal testicular tissue under in vitro sequential culture conditions

open access: yesAndrology, Volume 11, Issue 1, Page 167-176, January 2023., 2023
Abstract Background Testicular tissue cryopreservation before gonadotoxic treatments allows fertility preservation in children suffering from cancer. Fertility restoration strategies, in particular in vitro maturation of prepubertal testicular tissue, are being developed mainly in animal models. The rat, widely used in biomedical research, including in
Justine Saulnier   +8 more
wiley   +1 more source

EFFECT OF SPERM CONCENTRATION ON EJACULATE FOR MORPHOMETRIC TRAITS OF SPERMATOZOAS OF THE PIETRAIN BREED BOARS [PDF]

open access: yesJournal of Central European Agriculture, 2010
An attempt to evaluate the effect of spermatozoa concentration in one ejaculate on their measurements, shape, frequency of occurrence of morphological abnormalities in spermatozoa and physical traits of boar ejaculates in Pietrain breed was made.
Dorota BANASZEWSKA   +2 more
doaj  

Kualitas Semen Sapi Brahman pada Persentase Tris Kuning Telur yang Berbeda

open access: yesJurnal Sain Peternakan Indonesia, 2019
Tujuan dari penelitian ini adalah mengetahui kualitas semen sapi Brahman pada persentase tris kuning telur yang berbeda.  Penelitian ini dilaksanakan di UPTD Balai Inseminasi Buatan (BIB) Sembawa, Kabupaten Banyuasin, Sumsel dan dilaksanakan pada bulan ...
Ririn Novita   +2 more
doaj   +1 more source

Self-organisation of spermatozoa in bulk suspensions via unsteady elastohydrodynamic interactions [PDF]

open access: yesarXiv, 2023
We developed a mechanical model of spermatozoal swimming in bulk suspensions. We traced the spatiotemporal elastohydrodynamic interactions and found that spermatozoa engaged in self-organisation: flagellar undulatory motion generated a stable polar order.
arxiv  

MOTILITY OF SPERMATOZOA [PDF]

open access: yesJournal of the American Medical Association, 1917
To the Editor: —In the Current Comment on "The Function of the Prostate" (The Journal, Feb. 17, 1917, p. 553), it is stated that "it has been noted that the spermatozoa are practically motionless while in the seminiferous tubules of the testis, but become actively motile in the vas deferens, or when mixed with prostatic secretion." The statement that
openaire   +2 more sources

Modulation of the asymmetry of sea urchin sperm flagellar bending by calmodulin [PDF]

open access: yes, 1985
Sea urchin spermatozoa demembranated with Triton X-100 in the presence of EGTA, termed potentially asymmetric, generate asymmetric bending waves in reactivation solutions containing EGTA. After they are converted to the potentially symmetric condition by
Brokaw, C. J., Nagayama, S. M.
core   +2 more sources

CRISPR/Cas9‐mediated genome editing reveals seven testis‐enriched transmembrane glycoproteins dispensable for male fertility in mice

open access: yesAndrology, EarlyView., 2023
Abstract Background Mammalian fertilization is mediated by multiple sperm acrosomal proteins, many of which are testis‐enriched transmembrane glycoproteins expressed during spermiogenesis (e.g., Izumo sperm‐egg fusion 1, Sperm acrosome associated 6, and Transmembrane protein 95).
Yo Ogawa   +4 more
wiley   +1 more source

Pemisahan Spermatozoa Berkromosom X dan Y Kambing Boer dan Aplikasinya Melalui Inseminasi Buatan Untuk Mendapatkan Jenis Kelamin Anak Sesuai Harapan

open access: yesJurnal Agripet, 2013
Separation of spermatozoa with x and y chromosome at boer goat and its application by artificial insemination for kid sex purpose ABSTRACT. The purposes of this experiment are to investigate the separation of X and Y spermatozoa by measuring the ...
Dasrul Dasrul   +2 more
doaj   +1 more source

Uji Kualitas Semen Kambing Nubian dan Peranakannya (Kambing Nubian X PE) serta Kambing Boer Berdasarkan Lama Penyimpanan

open access: yesJurnal Sain Peternakan Indonesia, 2007
ABSTRAK  Penelitian ini bertujuan untuk mengevaluasi kualitas semen kambing Nubian, kambing Peranakan Nubian (kambing Nubian x PE) dan kambing Boer berdasarkan lama penyimpanan.
Noprida Husin   +2 more
doaj   +1 more source

CD33 as a leukocyte-associated marker expressed on human spermatozoa

open access: yesBMC Research Notes, 2023
Objective Sialic acid-binding immunoglobulin-type lectins (Siglecs) are commonly present on immune cells and often mediate cell-to-cell interactions and signaling. Studies have shown the presence of Siglecs 1, 2, 5, 6, 10 and 14 on human spermatozoa.
Nasrin Sereshki   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy