Results 1 to 10 of about 885 (129)

Recuperación de espermatozoides de la orina en hombres con eyaculación retrógrada [PDF]

open access: yesAdvances in Laboratory Medicine
La eyaculación retrógrada (ER) es la ausencia total o parcial de emisión del esperma, con la consecuente derivación del semen hacia la vejiga durante la fase de emisión de la eyaculación.
Veiga Álvarez Ernesto   +9 more
doaj   +2 more sources

Optimization of bovine oocyte cryopreservation: membrane fusion competence and cell death of linoleic acid-in vitro matured oocytes subjected to vitrification [PDF]

open access: yesFrontiers in Veterinary Science
Long-term conservation of livestock female genetic resources has led to increased interest in oocyte cryopreservation. However, the challenges of preserving large-volume cells and the lack of standardization in vitrification media and cryo-devices for ...
Glenda L. Ríos   +4 more
doaj   +2 more sources

Comparing the Effect of Different Antibiotics in Frozen-Thawed Ram Sperm: Is It Possible to Avoid Their Addition?

open access: yesFrontiers in Veterinary Science, 2021
It is crucial to perform a deep study about the most extensively used antibiotics in sperm extenders. Most of the protocols and concentrations used in ram are direct extrapolations from other species.
Luis Anel-Lopez   +20 more
doaj   +1 more source

EVALUATION OF ACROSOMAL STATUS ON LLAMA SPERM [PDF]

open access: yesSPERMOVA, 2015
No ...
Carretero MI   +3 more
doaj   +1 more source

El análisis seminal en la agricultura de precisión en el siglo XXI

open access: yesAgronomía Mesoamericana, 2023
Introducción. La reproducción asistida de animales tiene su origen en la domesticación de las especies ganaderas útiles al ser humano. Los consiguientes procesos de selección artificial permitieron desarrollar técnicas biotecnológicas que contribuyeron ...
Carles Soler, Anthony Valverde
doaj   +1 more source

Mass Mortality of Foundation Species on Rocky Shores: Testing a Methodology for a Continental Monitoring Program

open access: yesFrontiers in Marine Science, 2021
Global concern around substantial losses of biodiversity has led to the development of a number of monitoring programs. Networks were established to obtain appropriate data on the spatial and temporal variation of marine species on rocky shores. Recently,
María M. Mendez   +7 more
doaj   +1 more source

Epithelial and Neural Cadherin in Mammalian Fertilization: Studies in the Mouse Model

open access: yesCells, 2021
Successful mammalian fertilization requires a well-orchestrated sequence of molecular events leading to gamete fusion. Since this interaction involves Ca2+-dependent adhesion events, the participation of the Ca+2-dependent cell-cell adhesion proteins ...
Gustavo Luis Verón   +4 more
doaj   +1 more source

El contrato de donación de gametos y preembriones en la legislación española sobre técnicas de reproducción humana asistida

open access: yesCadernos Ibero-Americanos de Direito Sanitário, 2013
El progreso experimentado en las ciencias de la vida y de la medicina impulsado por los modernos avances y descubrimientos científicos y tecnológicos ha propiciado el desarrollo de las técnicas de reproducción humana asistida como una solución al ...
Ángela Ruiz Sáenz
doaj   +3 more sources

Application of ultrasound technique to evaluate the testicular function and its correlation to the sperm quality after different collection frequency in rams

open access: yesFrontiers in Veterinary Science, 2022
The frequency of semen collection is a crucial factor to consider in the rams performance inside breeding centers workout. To evaluate this factor, ram Breeding Soundness Evaluation could include sperm quality evaluation and new predictive and non ...
Rafael Montes-Garrido   +19 more
doaj   +1 more source

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