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Tales of the Tail and Sperm Head Aches : Changing concepts on the prognostic significance of sperm pathologies affecting the head, neck and tail
(Shanghai Institute of Materia Medica, 2012-01)
This article presents an update on the variable prognostic significance of different sperm pathologies in patients with severe male factor infertility due to morphology and motility disorders. Severe asthenozoospermia is ...
COILING OF SPERM CELL TAILS UNDER STRESSCOILING OF SPERM CELL TAILS UNDER STRESS
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1977)
Cryopreservation of bovine spermatozoa from the epididymal tail using conventional and automated methods
(Univ Austral Chile, Fac Ciencias Veterinarias, 2014-01-01)
Cryopreservation of sperm is important to preserve the gerrnplasm from animals of genetic value, which can die unexpectedly. This study compares conventional and automated methods of cryopreservation of spermatozoa obtained ...
Ultrastructure of Sorubim lima (Teleostei, Siluriformes, Pimelodidae) spermiogenesis
(2000-10-01)
The spermiogenesis and the spermatozoon ultrastructure of Sorubim lima were studied. Our observations showed that early spermatids are round-shaped cells, have spherical nucleus with diffuse chromatin, small quantity of ...
Sperm Motility Should be Assessed in Fresh Sperm and After a Sperm Washing Procedure
(Taylor & Francis Online, 1992)
A prospective study was carried out on semen samples from 118 consecutive unselected men attending our infertility clinic to determine whether sperm motility may be affected by seminal plasma. The incidence of asthenozoospermia ...
Sperm Motility Should be Assessed in Fresh Sperm and After a Sperm Washing Procedure
(Taylor and Francis, 1992)
A prospective study was carried out on semen samples from 118 consecutive unselected men attending our infertility clinic to determine whether sperm motility may be affected by seminal plasma. The incidence of asthenozoospermia ...
Effect of seminal plasma addition from high and low fertility animals on the cryopreservation of epididymal tail and ejaculated sperm from subfertile stallions
(Arquivo Brasileiro Medicina Veterinaria Zootecnia, 2019-05-01)
The aim of this study was to compare the effect of the addition of seminal plasma from high and low fertility stallions on sperm viability offrozen-thawed sperm cells from ejaculate and from epididymal tail of subfertile ...