scholarly journals DEVELOPMENT AND VALIDATION OF A NOVEL MAIL-IN SEMEN ANALYSIS SYSTEM AND THE CORRELATION BETWEEN ONE HOUR AND DELAYED SEMEN ANALYSIS TESTING

2020 ◽  
Vol 114 (3) ◽  
pp. e534-e535
Author(s):  
Mary Katherine Samplaski ◽  
Owen Falk ◽  
Stan Honig ◽  
David Shin ◽  
William J. Matthews ◽  
...  
2000 ◽  
Vol 73 (3) ◽  
pp. 636-640 ◽  
Author(s):  
William R. Boone ◽  
Jeffrey M. Jones ◽  
Sander S. Shapiro

2007 ◽  
Vol 76 (4) ◽  
pp. 601-604 ◽  
Author(s):  
R. Kozdrowski ◽  
A. Dubiel ◽  
W. Bielas ◽  
M. Dzięcioł

The objective of the study was a comparison of two protocols of goat semen cryopreservation with the use of computer-assisted semen analysis system. Twenty ejaculates obtained with electroejaculation method were assessed. Each ejaculate was divided in half and frozen according to two protocols. In protocol I semen was centrifuged in order to remove its plasma and diluted in Tris buffer extender containing glucose, citric acid and glycerol with 20% addition of egg yolk. Protocol II did not include removal of plasma and the extender contained 1.5% egg yolk. It was shown that the removal of semen plasma improved motility of goat spermatozoa following freezing/thawing with respect to the following motility indicators: motility, average path velocity, amplitude of lateral head displacement at p < 0.05, and straight velocity, straightness and linearity at p < 0.01. In conclusion, the removal of semen plasma through centrifugation improved motility properties of goat semen following the freezing/thawing procedure.


2010 ◽  
Vol 60 (232) ◽  
pp. 1087-1094
Author(s):  
J. A. Bravo ◽  
J. Montanero ◽  
R. Calero ◽  
T. J. Roy

En este trabajo se analizan las relaciones existentes entre las variables de movilidad espermática en eyaculados de moruecos de raza Île de France a lo largo de un año, obtenidas mediante análisis subjetivo y por el sistema informatizado ISAS® (Integrated Semen Analysis System). Los resultados muestran una fuerte asociación entre parámetros del mismo tipo, siendo el coeficiente de correlación r>0,80 (p


2021 ◽  
Vol 32 (1) ◽  
pp. e19506
Author(s):  
Hernán Cucho ◽  
Mitzi Gallegos ◽  
Rufina Ccoiso ◽  
Aydee Meza ◽  
Enrique Ampuero ◽  
...  

El objetivo del estudio fue determinar la existencia de subpoblaciones espermáticas según la morfometría de los espermatozoides de llama, utilizando un sistema CASA-Morph. Se colectó semen de cuatro llamas Q’ara de 4-6 años mediante el método de electroeyaculación en cuatro oportunidades por animal, con intervalos de una semana. Se determinó el volumen, movilidad total, concentración de espermatozoides, porcentaje de espermatozoides vivos y porcentaje de espermatozoides con reacción acrosomal. Los parámetros morfométricos de los espermatozoides se evaluaron utilizando el sistema CASA-Morph, Integrated Semen Analysis System (ISAS®v1). Se determinó la longitud, anchura, área, perímetro, elipticidad, elongación, regularidad y rugosidad de la cabeza del espermatozoide de llama, así como la anchura, área, distancia y ángulo de inserción de la pieza intermedia del espermatozoide. Las variables morfométricas se distribuyeron en cinco componentes principales (PCA) denominados elongación, longitud, circularidad, anchura de la pieza intermedia e inserción de la pieza intermedia, que explicaron un 81.6% de la varianza total. El análisis de clústeres determinó cuatro subpoblaciones (SP): SP1 agrupó células pequeñas con baja elongación y elipticidad (36.8%); SP2 de espermas de tamaño intermedio, tanto en la longitud y anchura de la cabeza (9.9%); SP3 de células alargadas con valores bajos de anchura de la cabeza y pieza intermedia (33.0%); y SP4 de espermatozoides con una anchura de la pieza intermedia alta (20.2%). Se hallaron diferencias significativas de subpoblaciones intra e inter animal.


2020 ◽  
Vol 143 ◽  
pp. 109887
Author(s):  
S. Arvind ◽  
K. Maheshkumar ◽  
S. Vaishali ◽  
S. Lavanya ◽  
R. Padmavathi

1995 ◽  
Vol 10 (8) ◽  
pp. 2090-2095 ◽  
Author(s):  
J.G. Wijchman ◽  
B.T.H.M. de Wolf ◽  
S. Jager

2014 ◽  
Vol 26 (1) ◽  
pp. 142
Author(s):  
B. G. Silva ◽  
E. A. Moraes ◽  
W. C. G. Matos ◽  
C. S. Oliveira ◽  
W. D. Ferrari Junior ◽  
...  

The objective of the present study was to determine the concentration of cholesterol or cholestanol-loaded-cyclodextrin that needs to be added to goat sperm before cryopreservation to optimize its survival. The cholesterol or cholestanol loaded methyl-β-cyclodextrin was prepared as described by Moraes et al. (2010 Anim. Reprod. Sci. 118, 148–154). A working solution of the cholesterol or cholestanol-loaded cyclodextrin was prepared by adding 50 mg of each one to 1 mL of TALP at 37°C and mixing the solution briefly using a vortex mixer. Ejaculates (n = 24) from 5 bucks were used for this experiment. Sperm from each ejaculate were diluted 1 : 1 (vol : vol) in Tris diluent (200 mM Tris, 65 mM citric acid, and 55 mM glucose) and centrifuged at 800 × g for 10 min. The pellets were resuspended to a concentration of 120 × 106 sperm mL–1 in Tris and subdivided into 7 aliquots of 5 mL each (600 × 106 total sperm). Sperm were treated in 7 treatment groups that received no additive (0 mg; control) or different levels of cholesterol or cholestanol (0.75, 1.5, or 3.0 mg/120 × 106 sperm). All treatments were incubated for 15 min at room temperature and then cooled to 4°C over 2 h. The samples were diluted with Tris-egg yolk diluent containing 2% glycerol. The sperm were packaged into 0.5-cc straws and frozen in static liquid nitrogen vapor for 20 min and then straws were plunged into liquid nitrogen and stored until analysed for motility and thermal resistance test using a computer-assisted semen analysis system (CASA). Two straws from each treatment were thawed in a 37°C water bath for 30 s and extended in Tris. For the thermal resistance test, after thawing, 0.5 mL of semen from each treatment was placed in 1.5-mL tubes in a water bath at 37°C for 3 h. At 0, 60, 120, and 180 min, subsamples were evaluated for sperm total and progressive motility using a computer-assisted sperm motion analyzer. A total of 200 spermatozoa were counted in at least 5 different fields. Data were analysed using ANOVA and treatment means were separated, using the SNK test at 5% probability. Cholesterol (0.75 mg; 46.7%) and cholestanol (1.5 mg; 40.5%) produced an increase in progressive motility compared with other treatments after 1 h of incubation (P < 0.05). However, cholestanol (0.75 mg; 39.5 and 31%) was higher for total and progressive motility after 3 h of sperm incubation compared with the control (27 and 17.8%; P < 0.05), respectively. The addition of 0.75 mg of cholestanol in fresh sperm before cryopreservation improved the motility of freeze-thawed goat sperm compared with cholesterol. Therefore, adding cholestanol to goat sperm membranes improved cell cryosurvival. Supported by Fundação de Amparo à Ciência e Tecnologia de Pernambuco (FACEPE) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).


2010 ◽  
Vol 12 (6) ◽  
pp. 871-879 ◽  
Author(s):  
Giuseppe Bellastella ◽  
Trevor G. Cooper ◽  
Marina Battaglia ◽  
Anda Ströse ◽  
Inma Torres ◽  
...  

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