scholarly journals Liquid and Frozen Storage of Agouti (Dasyprocta leporina) Semen Extended with UHT Milk, Unpasteurized Coconut Water, and Pasteurized Coconut Water

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
W. M. Mollineau ◽  
A. O. Adogwa ◽  
G. W. Garcia
Keyword(s):  
Liquid Nitrogen ◽  
Frozen Storage ◽  
Coconut Water ◽  
Short Term ◽  
Uht Milk ◽  
Storage Method ◽  
Progressive Motility ◽  
Liquid Storage ◽  
And Storage ◽  
Term Storage

This study evaluated the effects of semen extension and storage on forward progressive motility % (FPM%) in agouti semen. Three extenders were used; sterilized whole cow's milk (UHT Milk), unpasteurized (CW) and pasteurized coconut water (PCW), and diluted to 50, 100, 150, and 200 × 106spermatozoa/ml. Experiment 1: 200 ejaculates were extended for liquid storage at 5∘C and evaluated every day for 5 days to determine FPM% and its rate of deterioration. Experiment 2: 150 ejaculates were extended for storage as frozen pellets in liquid nitrogen at −195∘C, thawed at 30∘to 70∘C for 20 to 50 seconds after 5 days and evaluated for FPM% and its rate of deterioration. Samples treated with UHT milk and storage at concentrations of 100 × 106spermatozoa/ml produced the highest means for FPM% and the slowest rates of deterioration during Experiment 1. During Experiment 2 samples thawed at 30∘C for 20 seconds exhibited the highest means for FPM% (12.18 ± 1.33%), 85% rate of deterioration. However, samples were incompletely thawed. This was attributed to the diameter of the frozen pellets which was 1 cm. It was concluded that the liquid storage method was better for short term storage.

scholarly journals Effect of short-term conservation temperature, with or without centrifugation, on the survival and motility of Catalonian donkey spermatozoa

2020 ◽  
Vol 18 (1) ◽  
pp. e0402
Author(s):  
Jordi Miró ◽  
Ester Taberner
Keyword(s):  
Seminal Plasma ◽  
Computer Assisted ◽  
Short Term ◽  
Progressive Motility ◽  
North Eastern ◽  
Short Term Storage ◽  
And Storage ◽  
Term Storage ◽  
Storage Temperatures ◽  
Fresh Semen

Aim of study: To analyze the effect of three short-term storage temperatures with or without removing seminal plasma on the survival and motility of donkey sperm and the response to refrigeration and centrifugation of the different spermatozoa subpopulations.Area of study: North-eastern Spain (Catalonia).Material and methods: Semen from seven Catalonian jackasses was diluted with a skimmed milk-based (Kenney) extender and different treatments were obtained: FRESH semen, FRESH semen immediately centrifuged to remove the seminal plasma before resuspension in Kenney extender (FRESH+CENTRIFUGATION), FRESH semen stored at 5/15/20ºC for 2 h (STORAGE 5/15/20ºC), and STORAGE 5/15/20ºC semen then centrifuged (STORAGE 5/15/20ºC+CENTRIFUGATION). Survival was examined using eosin-nigrosin stained smears. Motion was assessed by means of a computer-assisted sperm analyzer (CASA).Main results: The spermatozoa of the STORAGE 5ºC and 20ºC showed an overall motility similar to that seen in FRESH samples. However, the STORAGE 15ºC led to an important motility reduction. No differences were seen between the FRESH and STORAGE 5/15/20ºC with respect to progressive motility. However, STORAGE 5/15/20ºC+CENTRIFUGATION all reduced total motility, and STORAGE 15ºC+CENTRIFUGATION led to reduced survival. The sperm motile subpopulations structure of donkey semen was maintained after STORAGE 5/15/20ºC+CENTRIFUGATION, although STORAGE 15ºC+CENTRIFUGATION led to important changes. STORAGE 5/20ºC+CENTRIFUGATION, in contrast, only induced slight changes. STORAGE 20ºC+CENTRIFUGATION was associated with no change in the percentage of sperm cells belonging to each Subpopulation compared to FRESH sperm.Research highlights 2 h of storage at 20ºC followed by centrifugation is suitable for the short-term storage of donkey semen.

Establishment of a short-term storage method via encapsulation of protocorm-like bodies in Phalaenopsis bellina (Rchb. f.) Christenson

2011 ◽  
Vol 39 (3) ◽  
pp. 697-702 ◽  
Author(s):  
A.A. Khoddamzadeh ◽  
U.R. Sinniah ◽  
M.A. Kadir ◽  
S.B. Kadzimin ◽  
M. Mahmood ◽  
...  
Keyword(s):  
Short Term ◽  
Storage Method ◽  
Short Term Storage ◽  
Term Storage

Cognitive neuropsychological evidence for common processes underlying generation and storage of language representations

2003 ◽  
Vol 26 (6) ◽  
pp. 747-748
Author(s):  
Nadine Martin
Keyword(s):  
Short Term ◽  
New Directions ◽  
Short Term Storage ◽  
Neuropsychological Evidence ◽  
S Model ◽  
And Storage ◽  
Cognitive Neuropsychological ◽  
Term Storage

Ruchkin et al. offer a compelling case for a model of short-term storage without a separate buffer. Here, I discuss some cognitive neuropsychological data that have been offered in support of and against their model. Additionally, I discuss briefly some new directions in cognitive neuropsychological research that bear on the role of attention in Ruchkin et al.'s model.

Value of semen parameters, with special reference to TNF-α, in predicting the quality of boar semen after short-term storage

2013 ◽  
Vol 61 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Janko Mrkun ◽  
Marjan Kosec ◽  
Petra Zrimšek
Keyword(s):  
Semen Quality ◽  
Semen Parameters ◽  
Short Term ◽  
Progressive Motility ◽  
Tnf Α ◽  
Semen Storage ◽  
Boar Semen ◽  
Α Level ◽  
Term Storage

The aim of this study was to address the question whether changes in boar semen quality after short-term storage could be predicted on the basis of standard semen parameters and TNF-α level determined on the day of semen collection under commercial conditions. Progressive motility showed the highest positive correlation with morphology on day 0 of collection, and progressive motility on day 3 (P < 0.05) showed a negative correlation with acrosome abnormalities (P < 0.05). According to the area under receiver operating characteristics (ROC) curves (AUCs), progressive motility could also be used in predicting semen quality after 3 days of storage (AUC > 0.5; P < 0.05). TNF-α in seminal plasma is the only parameter measured on day 0 to show a significant correlation with the percentage of viable spermatozoa after 3 days of semen storage (r = 0.495, P < 0.05). ROC analysis shows that TNF-α level is helpful in discriminating viability outcome after semen storage (AUC = 0.94, P < 0.001). We can predict with 92.35% certainty that fresh semen samples with more than 150 pg/ml of TNF-α in the seminal plasma will retain more than 85% of viable spermatozoa after 3 days of storage. Thus, TNF-α can contribute to predicting the quality of short-term stored semen.

113 Effect of antioxidants on motility and fertility of liquid-stored bovine sperm

2020 ◽  
Vol 32 (2) ◽  
pp. 183
Author(s):  
Y. Honkawa ◽  
T. Fujikawa ◽  
N. Miura ◽  
C. Kubota
Keyword(s):  
Embryo Development ◽  
Sperm Motility ◽  
Sperm Concentration ◽  
Frozen Storage ◽  
Egg Yolk ◽  
P Value ◽  
Motile Sperm ◽  
Progressive Motility ◽  
Bovine Sperm ◽  
Liquid Storage

It is difficult to maintain sperm in liquid storage for a long time, compared with permanent frozen storage in liquid nitrogen. Antioxidants have been reported to improve the quality and fertility of liquid-stored semen. In this study, we investigated whether antioxidants can extend the motility and fertility of frozen-thawed sperm in liquid storage. Frozen-thawed semen from one Japanese black bull (one ejaculate) was diluted in Tris-citrate-fructose (TCF) diluent with 10% (v/v) egg yolk to a sperm concentration of 1×107 spermmL−1. The antioxidants β-mercaptoethanol (βMe) and glutathione (GSH) were added independently, at various concentrations (0.1, 0.5, 1, and 5mM) to sperm suspensions, and these preparations were compared with Control (no added antioxidant). Sperm suspensions were packaged in centrifuge tubes and placed at 17°C in air and monitored daily until sperm motility had stopped (up to 14 days). Sperm motility was analysed by the Sperm Motility Analysis System (SMAS; Ditect Co. Ltd), and the percentage of progressively motile sperm (straight-line velocity (VSL) of &gt;25μm s−1; Grade A classified by WHO manual), compared with that recorded on Day 0 (100%), was determined each day. For evaluation of fertilizing ability, after incubation in liquid storage for 0, 3, 5, and 7 days, sperm were used for IVF with invitro-matured oocytes (30 oocytes per treatment, three replicates). Embryo development was recorded as the proportion of embryos that reached blastocyst by 8 days after IVF. Data for motility were analysed using one-way ANOVA with Tukey test, and embryo development using chi-squared test. A P-value&lt;0.05 was considered statistically significant. At 7 days, the percentage of progressively motile sperm was significantly higher for 0.5, 1, and 5mM βMe than for Control (30.8%, 48.1%, and 50.3%, vs. 0%, respectively). Treatments with 1 and 5mM βMe maintained some sperm progressive motility for 14 days (9.5% and 14.5%). Treatment with GSH showed the same trend at 7 days (32.2%, 36.3%, and 13.7% for 0.5, 1, and 5mM, vs. 0% for Control); 1 and 5mM GSH maintained sperm progressive motility over 10 days (24.8% and 4.4%). In both antioxidant treatments, embryo development was achieved with sperm stored for up to 5 days (Day 0 vs. Day 5 for 0.1mM βMe: 17.6% vs. 13.8%; for 1.0mM GSH: 26.0% vs. 6.7%; for Control: 17.6% vs. 0%). In this study, antioxidants extended both motility and fertility of frozen-thawed bovine sperm in liquid storage. This result suggests the possibility of application to AI using liquid-stored bovine semen.

Short-term storage of seeds and cryopreservation of embryonic axes of Lepisanthes fruticosa

2021 ◽  
Author(s):  
Suryanti Bustam ◽  
Mohd Shukri Mat Ali ◽  
Uma Rani Sinniah ◽  
Nur Atisha Shamsuddin ◽  
Abdul Muhaimin Abdul Kadir
Keyword(s):  
Moisture Content ◽  
Sodium Alginate ◽  
Liquid Nitrogen ◽  
Short Term ◽  
Embryonic Axes ◽  
Short Term Storage ◽  
Vitrification Solution ◽  
Term Storage

Abstract This work highlights short-term storage of recalcitrant Lepisanthes fruticosa seeds and long-term conservation attempts of its embryonic axes (EAs) through cryopreservation. Short-term storage was carried out using fresh seeds at 54 % moisture content and stored at 8 ±1 °C and 25 ±2 °C for 7 weeks. Three variations to sterilization were attempted to optimize survival while keeping contamination low for cryopreservation. Cryopreservation using two different methods were tested, namely vitrification and the encapsulation vitrification method. Vitrification technique involved the pre-culturing of EAs overnight in different sucrose pre-culture concentrations (0, 0.2, 0.4 and 0.6 M) prior to, loading, dehydration with plant vitrification solution (PVS2), rapid immersion into liquid nitrogen (-196 °C), rapid warming, unloading and recovery. While, encapsulation vitrification involved encapsulation of the EAs using 3 % sodium alginate followed by exposure to different duration (0, 10, 20, 30, 40 and 50 minutes) of PVS2 prior to cryopreservation. L. fruticosa seeds can be safely stored for short-term with no loss in germination up to 7 weeks of storage either at 8 ±1 °C or 25 ±2 °C. This study also showed that EA of L. fruticosa was amenable to cryopreservation, 13.0 – 66.67% of viability was obtained when the EAs were cryopreserved using the vitrification technique while the best result was obtained (66.67 % viability) when the EAs were pre-cultured with 0.4 M sucrose prior to exposure to PVS2 and liquid nitrogen. Cryopreservation of EAs using the encapsulation-vitrification method was unsuccessful.

scholarly journals Liquid Storage of Boar Semen Using Commercial Extenders

2018 ◽  
Vol 75 (1) ◽  
pp. 66
Author(s):  
Liviu BOGDAN ◽  
Mihai CENARIU ◽  
Mihai BORZAN ◽  
Simona CIUPE ◽  
Lehel SZABO ◽  
...  
Keyword(s):  
Semen Parameters ◽  
Computer Assisted ◽  
Sperm Analysis ◽  
Progressive Motility ◽  
Liquid Storage ◽  
Before And After ◽  
Boar Semen ◽  
Casa System ◽  
Sexually Mature ◽  
Term Storage

The research was focused on the modern evaluation of boar semen parameters, using computer assisted sperm analysis (CASA), before and after liquid storage at 15ºC. Semen was collected from 15 sexually mature boars by manual stimulation. Macroscopical and microscopical evaluation of semen was performed, followed by a detailed CASA analysis of all ejaculates. Subsequently, semen was diluted using 4 different extenders (Semtest, Androstar, MIII and Cronos) and stored at 15ºC for 24 hours. Next, evaluation of progressive motility, total motility and viability was performed, using the same CASA system. All experiments were performed in triplicates and results were statistically analyzed. The average progressive motility after 24 hours was as follows: 69.56 ± 6.38 for MIII, 65.92% ± 2.63 for Semtest, 67.07% ± 5.58 for Androstar Plus and 68.93% ± 3.40 for Cronos. The viability results after 24 hours were: 86.34% ± 1.38 for Semtest extender, 93.55% ± 3.38% for Androstrar Plus, 89.19% ± 3.42 for MIII and 91.35% ± 2.37 for Cronos. The findings of this study suggest that the use of commercial extenders for short-term storage of swine semen is important in order to increase sperm longevity with minimal sperm function deterioration.

scholarly journals Measurable Cytokine Concentrations in Pig Seminal Plasma Are Modified by Semen Handling and Storage

Biology ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 276
Author(s):  
Lorena Padilla ◽  
Isabel Barranco ◽  
Inmaculada Parrilla ◽  
Xiomara Lucas ◽  
Heriberto Rodriguez-Martinez ◽  
...  
Keyword(s):  
Seminal Plasma ◽  
Biological Fluids ◽  
Storage Conditions ◽  
Reliable Measurement ◽  
Short Term ◽  
Gm Csf ◽  
Long Term Storage ◽  
And Storage ◽  
Term Storage

Sample handling and storing are critical steps for the reliable measurement of circulating biomolecules in biological fluids. This study evaluates how cytokine measurements in pig seminal plasma (SP) vary depending on semen handling and SP storage. Thirteen cytokines (GM-CSF, IFNγ, IL-1α, IL-1β, IL-1ra, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12, IL-18 and TNFα) were measured using Luminex xMAP® technology in individual seminal plasma (SP) samples (n = 62) from healthy breeding boars. Three separate experiments explored the delay (2 h and 24 h) in SP collection after ejaculation (Experiment 1) and SP storage, either short-term (5 °C, −20 °C and −80 °C for 72 h, Experiment 2) or long-term (at −20 °C and −80 °C for two months, Experiment 3), before analysis. Levels in fresh SP-samples were used as baseline control values. Delays in SP harvesting of up to 24 h did not substantially impact SP cytokine measurements. Some cytokines showed instability in stored SP samples, mainly in long-term storage. Ideally, cytokines in pig SP should be measured in fresh samples harvested within 24 h after ejaculation. If storage of SP is imperative, storage conditions should be adjusted for each cytokine.

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