Buscar
Mostrando ítems 1-10 de 58
Testicular Parameters and Morphological Characteristics of Testicular and Epididymal Spermatozoa of White Fulani Bulls in Nigeria
(Sociedad Chilena de Anatomía, 2006)
Changes in lysosomal enzymes and mannose-6-phosphate receptors related to sexual maturation in bull epididymis
(Csiro Publishing, 2015-04)
One of the most striking features of the mammalian epididymis is the secretion of lysosomal enzymes (LE). These LE may play a role in sperm maturation. In the present study we investigated the activity and distribution ...
Ultrasonographic characteristics of the testes, epididymis and accessory sex glands and arterial spectral indices in peri- and post-pubertal Nelore and Caracu bulls
(Elsevier B.V., 2020-01-01)
Ultrasonography can provide information about the integrity of organs; however, rarely is applied to the reproductive organ evaluation of bulls. The objective of the present study was to characterize and compare values for ...
Epididymal a-L-fucosidase and its possible role in remodelling the surface of bull spermatozoa
(Elsevier Science Inc, 2017-08)
The mammalian epididymis provides an appropriate environment for sperm maturation. During theepididymal transit, spermatozoa undergo biochemical and morphological changes that lead to theacquisition of the fertilizing ...
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 ...
Glycosidases Interact Selectively With Mannose-6-Phosphate Receptors of Bull Spermatozoa
(Wiley-liss, Div John Wiley & Sons Inc, 2016-11)
Glycosidases may play a role in sperm maturation during epididymal transit. In this work, we describe the interaction of these enzymes with bull spermatozoa. We found that β-galactosidase associated to spermatozoa can be ...
Network Analyses Predict Small RNAs That Might Modulate Gene Expression in the Testis and Epididymis of Bos indicus Bulls
(2021-04-30)
Spermatogenesis relies on complex molecular mechanisms, essential for the genesis and differentiation of the male gamete. Germ cell differentiation starts at the testicular parenchyma and finishes in the epididymis, which ...
Cryopreservation of bovine spermatozoa from the epididymal tail using conventional and automated methods
(Univ Austral Chile, Fac Ciencias Veterinarias, 2014)
Cryopreservation of bovine spermatozoa from the epididymal tail using conventional and automated methods
(Univ Austral Chile, Fac Ciencias Veterinarias, 2014)
Morphological features of the seminiferous and cauda Epididymides epithelia of breeding zebu bulls with normal and decreased testicular consistency
(The Society for Reproduction and Development, 1999)
The fine morphology of the testes and epididymes collected from breeding Zebu (Bos indicus) bulls with normal or decreased testicular consistency (TC) at clinical palpation was studied. The ultrastructure of testicles with ...