Tris-egg Yolk Research Articles

THE EFFECTIVENESS OF VITAMIN C AND E ADDITION IN VARIOUS DILUENTS OF BRAHMAN CATTLE SPERMATOZOA AFTER FREEZING

This research aimed to determine the quality of Brahman cattle spermatozoa after freezing in various diluent ingredients (Egg Yolk Citrate, Egg Yolk Tris, Skim Milk) which added vitamin C and vitamin E. The research was carried out using 4 treatments with 3 different diluent ingredients, each of which was Vitamins C and E are added to each diluent ingredient at a dose adjusted to the type of diluent agent. The treatment given is P0: Diluent without Vitamin C and E; P1: Diluent + Vitamin C; P2: Diluent + Vitamin E; and P3: Diluent + Vitamin C and Vitamin E. Research data were analyzed using analysis of variance and followed by Duncan's test at the 5% and/or 1% level for different variables. The results showed that the addition of vitamin C and vitamin E had a significant effect (P0.05) on motility and viability in the egg yolk tris diluent and egg yolk citrate but had no significant effect (P0.05) in the skim milk diluent. The use of different diluents had no significant effect (P0.05) on motility, viability, and abnormalities. This research concludes that Vitamin C added to the diluent tris egg yolk, egg yolk citrate, and skim milk showed higher average motility, percentage of live spermatozoa, and abnormalities of post-freezing Brahman cow spermatozoa.

Application of antioxidants in extender on bull sperm cryopreservation to reduce the male effect in dairy fertility

Because male and female effects on fertility must be considered, it may be difficult to achieve accurate and repeatable fertility predictions using only sperm characteristics given differences in breed, health, and season. Improving sperm quality after cryopreservation may be a method to reduce the male effect on the fertility outcome. This study was conducted using 2 different Certified Semen Service approved extenders, one containing plant-derived antioxidants, to assess cryopreserved sperm quality and determine pregnancy per artificial insemination (P/AI) in a commercial dairy farm. Beef bull ejaculates (n = 24 ejaculates, n = 4 bulls) were split and frozen in egg-yolk-TRIS (EYT) or GameteGuard-FB cryopreservation extenders. Frozen-thawed sperm was evaluated for sperm quality and used for insemination in dairy cows (n = 4856). There was an improvement in total and progressive motility, acrosome integrity, and reduction of DNA fragmentation at 0 and 3 h after thawing in sperm frozen in GameteGuard-FB when compared with the EYT extender. An overall 12.7% improvement in pregnancy per AI (P/AI) was observed when GameteGuard-FB (40.8%) was used for cryopreservation when compared with EYT (36.2%). More importantly, GameteGuard-FB frozen semen increased P/AI for first service by 19.5% (35.9% EYT and 42.9% GameteGuard-FB) and 45.0% was also observed at third service (31.3% EYT and 45.4% GameteGuard-FB). The use of GameteGuard-FB resulted in an average 40% P/AI among bulls. Taken together, the increase in cryopreserved sperm quality using GameteGuard-FB can be used to minimize the male effects on pregnancy outcomes in commercial dairy farms.

Effect of autologous platelet-rich plasma on the fertility and quality of cryopreserved buffalo bull semen: a comparative study using OptiXcell® and tris egg yolk extenders

BackgroundBuffalo spermatozoa have a distinct membrane structure that makes them more vulnerable to cryopreservation, resulting in lower-quality post-thawed sperm. This decreases the success rate of artificial insemination in buffaloes. Understanding and addressing these specific vulnerabilities are essential for improving reproductive techniques in buffalo populations. The properties of cryopreserved buffalo bull semen were examined in this study regarding the impact of adding autologous platelet-rich plasma (PRP) to OptiXcell® or Tris egg yolk-based extenders. Ten buffalo bulls were used to collect semen. Each bull’s ejaculate was separated into two main equal amounts, each of which was then diluted with either OptiXcell® or Tris egg yolk-based extender, supplemented with various PRP concentrations (5%, 10%, and 15%), and the control (0%), before being cryopreserved according to established protocols. Following equilibration and thawing, the quality and functionality of the sperm were evaluated, along with the antioxidant enzyme activities (GSH and TAC), malondialdehyde (MDA) content, and in vivo fertilization rate of the thawed semen.ResultsAll PRP concentrations in both extenders, particularly 10% PRP, improved the quality and functionality of the sperm in both equilibrated and frozen-thawed semen. Additionally, the antioxidant enzyme activities in both extenders were higher in the PRP-supplemented groups compared to the control group in thawed semen (P < 0.05). All post-thaw sperm quality, antioxidant enzyme activities, and functionality aside from DNA integrity were higher (P < 0.05) in the PRP-supplemented OptiXcell® than in the PRP-supplemented Tris egg yolk-based extender. The fertility of cryopreserved semen in the extenders supplemented with 10% and 15% PRP increased (P < 0.05) significantly more than that of the control extenders, with 10% PRP being the optimum concentration in OptiXcell® (80%) compared to that of Tris egg yolk-based extender (66.67%) and control of two extenders (53.33% and 46.67%, respectively).ConclusionsEven though autologous PRP-supplemented extenders have a protective impact on equilibrated and cryopreserved semen, 10% PRP-supplemented OptiXcell® extenders are more effective at preserving post-thaw semen quality, functionality, and antioxidant capacity, which increases the in vivo fertility of buffalo bulls.

Apoptotic-Related MiRNAs Correlated with Functional and Flow Cytometric Parameters in Asthenozoospermic Holstein Bulls After Freeze-Thaw Process.

Many cellular processes in spermatozoa, including apoptosis and motility, are regulated by miRNA. Different miRNAs and molecular pathways are involved in asthenozoospermia (AS) conditions, which are thought to be one of the causes of infertility with reduced sperm motility. Thirty-two semen samples from four Holstein bulls with normozoospermia (NS), total motility ≥ 70%, and progressive motility ≥ 60%, and 32 semen samples from four bulls with AS, total motility ≤ 40%, and progressive motility ≤ 32% were used to investigate the function of apoptosis-related miRNAs in the AS group. Samples were then aspirated into a 0.5 mL straw after dilution with a Tris-egg yolk extender and frozen at -196°C. After freezing, semen samples were thawed for 2 weeks at 37°C and sperm kinematic parameters, plasma membrane integrity, acrosome integrity, DNA fragmentation, apoptosis status, and expression of apoptosis-related miRNAs (miR-2114, miR-296-3p, miR-455-3p, and miR345-3p) were evaluated. Our results showed that the functional and flow cytometric parameters of the NS group were significantly better than those of the AS group. In the NS group, miR-455-3pp and miR-2412 were upregulated, while miR-345-3p was downregulated compared with the AS group. In the AS group, miR-296-39, miR-2412, and miR-345-3p levels were strongly correlated with membrane integrity, DNA fragmentation, and apoptosis status. The findings demonstrated that the selected miRNAs based on bioinformatic analysis in AS and NS samples had a substantial association with functional and flow cytometry indicators and may be involved in regulating apoptosis and motility in AS samples.

Comparison between commercial media and TRIS-egg yolk extender in the refrigerated storage of collared peccary semen at 17 °C

To assist in the conservation of collared peccary, it is important to strengthen semen processing protocols. The aim of this study was to compare the effects of different commercial extenders (BTS; NUTRIXcell+ and PRIMXcell Ultra) and TRIS + egg yolk on the functional and morphological aspects of collared peccary semen stored at 17 °C for 48 hours. Ten ejaculates obtained by electroejaculation were divided into 4 aliquots and diluted in the respective extenders, then stored in a biological incubator at 17 °C for 12, 24, 36, and 48 hours. The samples were evaluated for kinetic parameters, membrane functionality, membrane integrity, mitochondrial activity, morphology, and sperm-binding capacity. At the end of storage (48 h), promising results were found for motility parameters, with TRIS + egg yolk (71.0 ± 4.6%) being more efficient than NUTRIXcell+ (38.9 ± 10.9%) (P < 0.05) and similar to BTS (42.9 ± 11.9%) and PRIMXcell Ultra (46.8 ± 10.8%). The results for membrane integrity and mitochondrial activity were around ∼30–50%, with TRIS being the only extender to preserve both parameters (58.9 ± 5.3 and 59.2 ± 5.6%) for up to 48 hours, respectively (P < 0.05). Finally, the extenders could guarantee 60% membrane functionality and ∼ 60–70% normal sperm morphology, as well as similar binding capacity among the groups. In conclusion, TRIS + egg yolk is effective in preserving the sperm parameters of collared peccary semen at 17 °C for 48 hours, while PRIMXcell Ultra and BTS are viable alternatives for this purpose.

Natural honey supplementation in Tris-egg yolk diluent as Carbohydrate source replacing Fructose in Etawah Crossbred Goat semen

This study aims to identify the substitution of native honey as an energy source to replace fructose in Tris-KT diluent to improve the quality of spermatozoa of Etawah crossbreed goats (PE). The study was conducted at the Nekamese Vocational School and the Wiliams and Laura Foundation Biological and Reproductive Laboratory for 2 months. In this study, four PE male goats were used as a source of semen. Cement is accommodated twice a week. The semen obtained was evaluated macroscopically and microscopically then diluted with T-KT diluent with the addition of honey divided into P0 (control), P1 (T-KT + 0.25 w/v honey), P2 (T-KT + 0.50 w/v honey) and P3 (T-KT + 0.75 w/v honey). After dilution the cement is stored at a temperature of 3-5°C. Semen is evaluated post-dilution and post-storage every 24 hours, until the movement of spermatozoa is at least 40%. The variables tested were motility and viability of spermatozoa. P3 provides the best results in maintaining cement quality. The results showed that honey substitution in Tris-KT diluent exerted a marked effect on the motility and viability of spermatozoa (P&lt;0.05) during storage.

Evaluation of Kappa-carrageenan supplementation in extender for post-thaw Kajli ram sperm quality.

Cryopreservation is one of the reliable techniques for long-term storage of sperm. The success of this technique depends on the choice of cryoprotectant; therefore, a plethora of literature has reported the effects of different cryoprotective agents so far. Kappa-carrageenan (κ-carrageenan) is a hydrocolloid polysaccharide extracted from red marine seaweed. Its unique property makes it a promising option as a non-colligative cryoprotectant. The current study aims to evaluate the cryoprotective effect of k-carrageenan along with glycerol on ram sperm quality both after equilibration and freezing. Nine Kajli rams were utilized in this experiment for semen collection through an artificial vagina maintained at 42°C. Qualified samples were diluted in tris egg yolk glycerol (TEYG) extender containing different concentrations of k-carrageenan as 0 mg/mL (control), 0.2, 0.5, 0.8 and 1 mg/mL. Post-thaw assessment was done at 37°C after 24 h of storage, which showed a significant improvement (p < .05) in sperm viability, motility, membrane and acrosome integrity in an extender containing k-carrageenan at a concentration of 0.5 mg/mL compared to control. It is concluded from the current study that the combination of glycerol and 0.5 mg/mL concentration of k-carrageenan improved the sperm post-thaw quality.

The kinetics of goat sperm is negatively affected after freezing in an extender including zinc oxide nanoparticles

BACKGROUND: Nanotechnology can benefit livestock industries, especially through postharvest semen manipulation. Zinc oxide nanoparticles (Np-ZnO) are potentially an example. OBJECTIVE: To investigate how the addition of zinc oxide nanoparticles (Np-ZnO) affected the characteristics of postthawed goat semen. MATERIALS AND METHODS: Seminal pools from four Saanen bucks were used. Semen was diluted in Tris-egg yolk extender, supplemented with Np-ZnO (0, 50, 100 or 200 μg/mL), frozen and stored in liquid nitrogen (−196°C), and thawed in a water bath (37°C/30s). Semen samples were evaluated for sperm kinetics by computer-assisted sperm analysis (CASA), and assessed for other functional properties by epifluorescence microscopy, such as plasma membrane integrity (PMi), acrosomal membrane integrity (ACi) and mitochondrial membrane potential (MMP). RESULTS: For total motility (TM), the group treated with 200 μg/mL Np-ZnO was superior to the control. In straight-line velocity (VSL), the control was better than the group containing 200 μg/mL of Np-ZnO. For average path velocity (VAP), the control was higher than with 100 μg/mL Np-ZnO. For linearity (LIN), the control was higher than with 200 μg/mL Np-ZnO. In straightness (STR), the control and 100 μg/mL Np-ZnO were higher than with 200 μg/mL Np-ZnO. In wobble (WOB), the control was better than the 50 μg/mL Np-ZnO treatment. In PMi, ACi and MMP no significant differences were found. CONCLUSION: The addition of Np-ZnO (200 μg/mL) to the goat semen freezing extender improved the total motility of cells, whilst negatively affecting sperm kinetics.

Effects of organic and inorganic selenium supplementation on frozen-thawed ram semen at two cooling periods.

The aim of this study was to evaluate the effects of different selenium compounds on the sperm quality of cryopreserved ram semen. Ejaculates from four rams, collected using an artificial vagina heated to 38°C, were individually evaluated. The approved ejaculates were pooled and diluted (1:1 v:v) in Tris-egg yolk extender (20%, v/v) and separated into two control groups, one cooled for 2h and the other for 4h. The pooled ejaculates at the two cooling periods were supplemented with two doses (0.5 and 1μg/mL) of organic selenium (ORG), and inorganic selenium (SeNa), each. The samples were packed in 0.25ml straws, at a concentration of 400 × 106 sperms/mL and stored in liquid nitrogen. The straws were thawed in a water bath at 37°C for 20s, and the samples were subjected to sperm kinetics evaluation by Computer Assisted Semen Analysis software. Sperm membrane integrity, acrosome morphology, and mitochondrial potential were assessed. In addition, oxidative stress markers reactive oxygen species (ROS), ferric reducing antioxidant power (FRAP), thiobarbituric acid reactive species (TBARS), and glutathione peroxidase (GPx) enzyme activity) were also evaluated. No significant improvement was observed in the ram semen quality at the two cooling times. Supplementation of the freezing extender with 0.5μg/mL ORG, subjected to 4h cooling period, increased the sperm motility when compared with the control group at the same cooling time. In addition, the 0.5μg/mL SeNa group, under the 2h cooling period, showed an increase in sperm motility when compared to the control group at the same cooling period. Considering the importance of sperm motility as a fertility parameter, our study indicates that supplementation with ORG and SeNa can help improve the total motility of the cryopreserved ram semen.

Quality and kinematic characteristics of Bali bulls frozen semen with purified green tea extract epigallocatechin-3-gallate antioxidant addition in diluent.

The preservation of semen quality and kinematic characteristics during cryopreservation is crucial for the reproductive success and genetic management of livestock, particularly in Bali bulls. This study aimed to investigate the effect of adding purified green tea extract antioxidant Epigallocatechin-3-gallate (EGCG) in tris egg yolk diluent on the quality and kinematic characteristics of frozen semen from Bali bulls. Fresh and frozen semen samples were obtained from Bali bull and divided into four different treatment groups. P0 contained semen samples + diluent, while P1 to P3 consisted of semen samples + diluent supplemented with EGCG levels of 0.1, 0.15, and 0.2 mg/100 ml, respectively. Data were analyzed using One-way ANOVA and followed by Duncan's test if significant differences were found (p<0.05). Parameters observed included the assessment of fresh semen quality, kinematic analysis, post-thawing sperm viability, and abnormality. The results indicated that the assessment of fresh semen quality showed macroscopic and microscopic semen quality according to SNI 4869-1:2021. Kinematic analysis revealed significant differences in DSL and STR parameters between P0 and P3 (p<0.05). EGCG supplementation also caused significant differences in motility between P0 and P3 (p<0.05). Viability and spermatozoa abnormality with EGCG supplementation did not show significant differences (p>0.05). The best results for motility, kinematics, and sperm morphology variables were found in P1 as it did not exhibit a decrease in motility, kinematics, and sperm morphology. Viability did not show significant differences between P1, P2, and P3, but the best results were found in P2 as it did not exhibit a decrease in viability with mean and standard deviation (66.84 ± 7.88). Abnormality variables also did not show significant differences between P1, P2, and P3, but the best results were found in P2 as it did not exhibit a decrease in abnormality with mean and standard deviation (23.80 ± 7.36).

Effect of black cumin (Nigella sativa) seeds extract in tris egg yolk citrate extender on sperm motility of cryopreserved Surti buck semen

Effect of black cumin (Nigella sativa) seeds extract in tris egg yolk citrate extender on sperm motility of cryopreserved Surti buck semen

Effect of black cumin (Nigella sativa) seeds extract in tris egg yolk citrate extender on viability of cryopreserved Surti buck semen

Effect of black cumin (Nigella sativa) seeds extract in tris egg yolk citrate extender on viability of cryopreserved Surti buck semen

Effect of β-caryophyllene on Sperm Cryopreservation.

This study aimed to assess the impact of β-caryophyllene (BC) supplementation in the extender on the post-cryopreservation quality of semen from Dorper rams. Six Dorper rams were utilized for semen collection over 16 weeks, with BC concentrations determined via the MTT test. Animals were divided into a control group and three treatment groups receiving BC at concentrations of 1.0mM, 2.0mM, and 3.0mM in the Trisegg yolk diluent. Semen was cryopreserved and stored in liquid nitrogen for at least 15 days. After thawing, in vitro assessments including CASA, acrosomal integrity, plasma membrane integrity, mitochondrial membrane potential, and thermo-resistance tests were conducted. Additionally, the TBARS assay was performed to evaluate oxidative stress. While BC supplementation did not significantly affect sperm motility, it notably improved mitochondrial potential and mitigated oxidative stress in cryopreserved ram semen. Incorporating β-caryophyllene into the extender exhibited beneficial effects on the quality of Dorper ram semen post-cryopreservation, enhancing mitochondrial functionality and reducing oxidative stress.

The Quality of Buffalo Sperm in Tris Egg Yolk Diluent with Addition of Different Levels of Mangosteen Peel Extract

This study aimed to determine the quality of buffalo sperm in tris egg yolk diluent added with mangosteen peel extract at different levels. This study was conducted using an experimental method using a completely randomized design consisting of four treatment concentrations of mangosteen peel extract (T1: 0%, T2: 5%, T3: 10%, and T4: 15%) and four replications, respectively. Parameters observed were motility, abnormalities, intact plasma membrane, and acrosome intact. In the results, the addition of mangosteen peel extract had a significant effect (p &gt; 0.05) on the motility of buffalo sperm that had been diluted in egg yolk tris diluent. This study concluded that the addition of 5–10% mangosteen peel extract in egg yolk tris diluent has a significant effect on sperm motility, could minimize the abnormality, and minimize the decrease in the intact plasma membrane of the buffalo sperm.

The The Effect of Giving The Antioxidant Vitamin C in Tris-Egg Yolk Extender During The Preservation Period on The Quality of The Epididymal Spermatozoa of Mice (Mus musculus L.)

Spermatozoa preservation is a method used to store spermatozoa in a diluent solution such as NaCl or tris-egg yolk. However, the longer storage of spermatozoa in the diluent solution can generally form ROS (Reactive Oxygen Species). The addition of antioxidants such as vitamin C to the diluent is expected to be able to bind ROS so that they are not toxic to spermatozoa and sperm quality can be maintained during the preservation period. The purpose of this study was to determine the effect of giving the antioxidant vitamin C in tris-egg yolk diluent during the preservation period on the quality of mice epididymal spermatozoa. Vitamin C used in this study was 0.5 mg, 1 mg, and 2 mg in 100 ml of tris-egg yolk diluent. Observation of spermatozoa quality was carried out within 0 to 48 hours with a span of 12 hours. The results showed that the addition of Vitamin C concentrations of 0.5 mg, 1 mg, and 2 mg in 100 ml of tris-egg yolk diluent was able to maintain the percentage of motility and vitality, but the longer the storage the quality of spermatozoa decreased. The concentration of vitamin C 0.5 mg, 1 mg, and 2 mg in 100 ml of tris-egg yolk diluent is a good concentration to maintain the quality of spermatozoa during 12 hours of storage, the rest will decrease. Further research is needed to increase the storage time of spermatozoa by using vitamin C and tris-egg yolk.

The influence of various rates of royal jelly enriched extenders on frozen/thawed sperm quality and fertility in goats

The goal of this study was to detect the influence of royal jelly which has a strong antioxidant capacity supplementation in TRIS egg yolk and TRIS soybean lecithin extenders on quality and fertility. Sperm was collected from 5 Damascus bucks via an electro ejaculator during the breeding season. After dilution and cooling, the lowest motility and membrane integrity were detected in TEY-1RJ, in terms of abnormal spermatozoon rate, the TEY-1RJ group was the highest in cooled semen (P&lt;0.05). After dilution and cooling, osmolality decreased significantly when the RJ ratio increased (P&lt;0.05). After freezing-thawing, in both TEY and TSL extenders, the lowest sperm quality was detected in the 1% RJ groups. In terms of intact acrosome ratio, the highest value was recorded in the 0.50% RJ group in TEY and TSL diluents (P&lt;0.05). Fertility assessments were conducted with 150 goats synchronized with intravaginal sponges and goats were inseminated transcervical. There was no difference between pregnancy rates between TEY and TSL-control and RJ groups (P&gt;0.05). As a result, it was deduced that RJ additions to TEY and TSL extenders did not produce any alternative to freezing on sperm quality in Damascus goat semen except for the intact acrosome ratio and had no positive effect on fertility.

Competition Status of Salmonella sp., Shigella sp., and Escherichia coli in Tris Egg Yolk Semen Preservation Medium at Different Experimental Conditions

Competition is a very important fact of microorganisms’ life, with the major goal to gain an advantage in terms of scarce nutrients and limited space. In this study, bacterial competition of Salmonella sp., Shigella sp., and Escherichia coli were assessed in Tris- egg-yolk (TEY) semen preservation medium at two temperature degrees and three periods of incubation (3 h at 37°C, 1 and 7 days at 4°C). The three pathogen species were incubated with an initial bacterial load of 103 CFU/mL. After three hours of incubation at 37°C, there were significant differences (P &lt; 0.05) between the three species; however, Salmonella sp. had the highest CFU/ml compared to the two other pathogen species in bilateral and triple competition. Also after one day of storage at 4°C, a clear dominance of Salmonella sp. was noted, while in contrast, no significant difference (P &gt; 0.05) between E.coli and Shigella sp., was observed in the bilateral and triple competition cases. However, the maximum dominance of Salmonella sp. was observed after 7 days at 4°C, where the bacterial load percentages between all species for the triple competition were 74±5.6/12±5.9/14±6.9 for Salmonella sp., E. coli, and Shigella sp., respectively. In conclusion, regardless of the temperature degrees and the time point of incubation, Salmonella was always able to dominate and compete very effectively compared with the two other bacterial pathogens in the TEY medium. Moreover, 4°C gave clear preference to the survival of salmonella with its clear vitality percentage in this media compared to both E. coli and Shigella sp.

Effectiveness equilibration time on the quality of sperm buffalo in diluent tris yolk eggs with 4 % extract skin mangosteen (Garcinia mangostana L.)

A comfortable livestock environment will produce good sperm productivity. Sperm dilution is done so that rural communities can feel the benefits. This study aims to determine the best equilibration time to produce high motility, intact plasma membrane values with low abnormality values in buffalo spermatozoa. This research used a completely randomized design (CRD) with four treatments and ten replications. Sperm came from three buffalo kept at the Ciawi Balitnak. The research treatment consisted of equilibration times of two, three, four and five hours. The parameters measured were sperm motility, abnormality, and intact plasma membrane (IPM). Equilibrium time does not affect buffalo sperm motility, abnormalities, and IPM. The range of motility, abnormalities, and IPM was 43.75%-55.00%; 20.25%-29.00%; 71.75%-74.75%. Conclusion; An equilibration time of two hours can maintain motility, abnormality, the intact plasma membrane of buffalo sperm with egg yolk tris diluent, and the addition of 4% mangosteen peel extract which was suitable for artificial insemination. The application can improve the standard of living of the community through increased meat production.

Effect of certain extenders on semen quality of boars during preservation at 17°C

The present study was designed to determine the effect of three selected extenders on liquid preservation of boar semen at 17°C. Ejaculates (30) were collected from three boars (one ejaculate/boar/week) housed at University pig farm, Ludhiana using dummy sow. Only ejaculates having &gt;70% initial progressive motility were extended in Beltsville Thawing Solution (BTS), Safe Cell (SFC) and Tris-Egg Yolk (TEY) extenders in the ratio 1:4 and preserved in a BOD incubator at 17°C for 120 h. The semen was evaluated for different sperm attributes and lipid peroxidation (MDA) at 0, 24, 48, 72, 96 and 120 h of preservation. The mean percentage of sperm motility, viability,plasma membrane integrity and acrosome integrity were significantly higher in BTS as compared to SFC and TEY at different hours of storage period. At 120 h of preservation, highest percentage of in vitro capacitation/acrosome reaction was seen in semen stored in BTS followed by SFC and lowest in TEY after 6 h of incubation. Eventually, significantly lower levels of MDA were noticed in semen extended in BTS than in their contemporary extenders (SFC and TEY) at 96 and 120 h of storage period. The mean percentage of most sperm parameters decreased gradually from day of collection (0 h) up till 120 h in all the extenders. In conclusion, Beltsville Thawing Solution was better than Safe Cell and Tris-Egg Yolk extenders in liquid preservation of boar semen at 17oC owing to improved spermcharacteristics and reduced oxidative stress.

Comparison of Semen Diluted Basis (Tris-Egg Yolk) with Diluted Commercial Semen (Andromed®) in Frozen Goat Semen on Sperm Quality by CASA

The process of producing frozen goat semen involves a preparation of semen diluents, which is complicated. Since it involves a rapid temperature reduction, the quality of the sperm deteriorates. This study aimed to determine the comparison of semen diluted basis (Tris-egg yolk) with diluted commercial semen (Andromed®) in frozen goat semen on sperm quality by Computer aided sperm analysis (CASA) after thawing at 0, 1 and 3h. by using 1 Goat (Boer) semen. The semen was collected by means of an artificial vagina diluted with both types of semen diluent. Then the semen was preserved by a freezing method. The results showed that the preliminary assessment of fresh semen quality was good and suitable for use in frozen semen production. Additionally, it was found that frozen goat semen diluted basis (Tris-egg yolk) and diluted commercial semen (Andromed®) had no significant difference in motility, progressive motility, VAP, VSL, VCL, ALH, BCF (HZ), STR (%) and LIN (%) at 0h. However, at 1h, the motility and the progressive motility of Andromed® were 87.20±2.71% and 46.98±6.03%, while those of Tris-egg yolk were 68.55±11.5% and 34.20±4.42% respectively which these values were significantly different (P&lt;0.05). At 3h, the motility and the progressive motility of Andromed® were 73.45±3.04% and 31.58±6.63%, while those of Tris-egg yolk were 10.43±1.63% and 1.37±0.06% respectively which these values were significantly different (P&lt;0.01). In addition, at 1 and 3h, the VAP, VSL, VCL, ALH, and STR values of Andromed® diluted sperm were higher than those of Tris-egg yolk. From this study, it was found that commercial semen diluent (Andromed®) helps to maintain the quality of frozen goat semen and reduce the steps of semen diluent preparation. It can also be applied in farms or agencies.