




































 Agricultural Science; Vol. 3, No. 3; 2021 
ISSN 2690-5396   E-ISSN 2690-4799 

https://doi.org/10.30560/as.v3n3p12 

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The Efectiveness of Jamblang (Syzygium cumini) Leaves Extract 
Inclusion Skim Milk-Egg Yolk Extender on Motility and Viability of 

Aceh Cattle Spermatozoa during Pre-Freezing and Post-Thawing 
Cut Intan Novita1, Faqihuddin Nasution1 & Eka Meutia Sari1 

1 Department of Animal Science, Faculty of Agriculture, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, 
Indonesia, and Research Centre of Aceh Cattle and Local Animal, USK, Indonesia 
Correspondence: Cut Intan Novita, Department of Animal Science, Faculty of Agriculture, Universitas Syiah 
Kuala, and Research Centre of Aceh Cattle and Local Animal, Indonesia. E-mail:  
 
Received: August 24, 2021   Accepted: September 22, 2021   Online Published: September 24, 2021 
 
Abstract 
The process of semen freezing causes an increase in free radicals concentration which can damage spermatozoa. 
The addition of natural ingredients in semen diluent is expected to solve this challenges. One of the natural 
ingredients that can be used is jamblang (Syzygium cumini) leaves. The objective of the current study was to 
investigate the quality of spermatozoa in Aceh cattle which was added with jamblang leaves extract in skim milk- 
egg yolk extender during pre-freezing and post-thawing. This study applied Completely Randomized Design (CRD) 
with 5 treatments and 5 replications. The treatments consisted of J0 = skim milk-egg yolk; J1 = skim milk-egg 
yolk + jamblang leaves extract 0.2%; J2 = skim milk-egg yolk + jamblang leaves extract 0.4%; J3 = skim milk-
egg yolk + jamblang leaves extract 0.6%; and J4 = skim milk-egg yolk + jamblang leaves extract 0.8%. The 
parameters observed in this study were the percentage of motility and viability of frozen semen of Aceh cattle. 
The data obtained were analyzed using Analysis of Variance (ANOVA) and if differences were found, then it 
would be continued with Duncan's Multiple Distance test. The results showed that the addition of jamblang leaves 
extract in egg yolk skim milk significantly affected the percentage of motility during pre-freezing and post-thawing, 
significantly affected spermatozoa viability during pre-freezing and significantly affected the spermatozoa 
viability during post-thawing. J3 treatment (jamblang leaves extract 0.6 gram/100 ml) it should be higher than the 
other treatment, where the percentage of motility at pre-freezing and post-thawing were 55.48% and 52.71%, 
respectively, and the percentage of viability during pre-freezing and post-thawing were 56.59% and 53.94%, 
respectively. It was concluded that the addition of jamblang leaves extract in the skim milk-egg yolk extender 
affected the percentage of spermatozoa motility and viability of Aceh cattle during pre-freezing and post-thawing. 
Keywords: Spermatozoa of Aceh Cattle, Jamblang (Syzygium cumini) leaves extract, motility, viability, pre-
freezing, post-thawing 
1. Introduction 
The population of Aceh cattle which have been determined as Indonesian germplasm has decreased in the last 4 
(four) years. Its population was 86,618 cattle in 2017, but decreased to 76,811 cattle in 2020 (iSIKHNAS, 2020). 
Therefore, this fact urges the efforts to increase the population of Aceh cattle sustainably. 
One of the methods to increase the population of Aceh cattle is the application of Artificial Insemination (AI). The 
quality of semen used in the artificial insemination program is affected by the semen processing process starting 
from the storage, dilution, equilibration, and freezing (Fraser and Strzezek, 2005; Baumber et al., 2005). 
Furthermore, thawing method employed also has a significant role in determining the semen quality. The most 
critical part of the freezing process is the freezing process itself (Ozkavukcu et al., 2008; Ezzati et al., 2020;) and 
the thawing period (Garcia et al., 2010). During the freezing, water molecules were released massively from the 
cell, causing an increase in the concentration of intracellular electrolytes and the formation of ice crystals (Rasul 
et al., 2001; Rodriguez-Martinez et al., 2008; Baust et al., 2009). Meanwhile, during the thawing process, semen 
experiences heavy pressure due to a drastic increase in temperature. Such conditions increased the metabolic 
activities which further lead to the increase of metabolic products, which is the concentration of free radical 
(Chatterjee and Gagnon, 2001; Kumar et al., 2011). All of these negative effects will decrease the motility and 
viability of spermatozoa (Mansour et al., 2010). 



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The quality of semen can be maintained through the dilution process. This process needs a good extender that does 
contain nutrients, anti-cold shock, cryoprotectants, and antioxidants that can maintain the quality of semen during 
the equilibration to freezing process (Schafer-Somi et al., 2006). Skim milk-egg yolk can be utilized as extender 
because skim milk contains protein, lactose, water, and little fat (Pagl et al., 2006). In addition, egg yolks and milk 
contain phospholipids and lecithin which can protect spermatozoa from cold shock during the freezing process 
(Amirat et al., 2004). The main content of milk is lecithin which can protect spermatozoa from cold stress during 
the freezing process (Feradis, 2009). Egg yolk is a food provider, energy source, and intracellular protector of 
spermatozoa from cold shock conditions during freezing, and provides a buffer effect against spermatozoa 
(Aboagla and Terada, 2004; Alcay et al., 2016). In order to overcome plasma membrane damage caused by free 
radicals, it needs additional antioxidants in the diluent. According to Leao et al. (2021), the addition of antioxidants 
in semen diluents can reduce oxidative stress and can increase fertilization power. One of the natural ingredients 
that can be used is jamblang (Syzygium cumini) leaves. Jamblang leaves contain antioxidant substances including 
flavonoids, phenolics (Ruan et al., 2008; Mohamed et al., 2013), alkaloids, glycosides, saponins, tannins (Gowri 
and Vasantha, 2010), β-sitosterol, quercetin, and terpenoid (Sarma et al., 2020). In addition to being a natural 
antioxidant, as a diluent, jamblang leaves is also expected to save the cost of frozen semen production, because 
jamblang leaves are easy to obtain. Based on this background, it is necessary to further study the effect of the 
addition of jamblang (Syzygium cumini) leaves extract in skim milk-egg yolks extender on the motility and 
viability of Aceh cattle spermatozoa during pre-freezing and post-thawing. 
2. Material and Method  
The materials used in this research were 4 kg of jamblang leaves that were extract and fresh semen from a 10-
year-old Aceh cattle at Artificial Insemination Center of Saree Region, Aceh Besar. Completely Randomized 
Design (CRD) was applied in this research consisting of 5 treatments and 5 replications. These five treatments 
were included J0 = skim milk-egg yolk; J1 = skim milk-egg yolk + jamblang leaves extract of 0.2 gram/100 ml; 
J2 = skim milk-egg yolk + jamblang leaves extract of 0.4 gram/100 ml; J3 = skim milk-egg yolk + jamblang leaves 
extract of 0.6 gram/100 ml; and J4 = skim milk-egg yolk + jamblang leaves extract of 0.8 gram/100 ml. Meanwhile, 
the parameters observed were the percentage of motility and viability of frozen semen of Aceh cattle. 
The extraction process of jamblang (Syzygium cumini) leaves began with 1day air-drying and pulverizing the 
leaves until they formed simplicia powder. Simplicia powder was then macerated using 4 litters of 96% ethanol 
for 1000 grams of jamblang leaves. After 4 days of maceration process, the results were filtered, and then 
concentrated using a vacuum rotary evaporator at 40°C and a speed of 60 rpm to obtain a paste-shaped extract. 
Skim milk-egg yolk extender contained skim milk, egg yolk, fructose, distilled water, penicillin, and streptomycin. 
As much as 95 ml of distilled water was heated at 37°C, added with skim milk by 10 grams, and then homogenized. 
Furthermore, 1 gram of fructose was added into the erlenmeyer and homogenized, added by 5 ml of egg yolk and 
then homogenized again. The solution was then steamed for 15-20 minutes until it reached room temperature of 
37°C. After the solution cooled down, 1000 IU/ml penicillin by 0.34 grams and 1000 IU/ml streptomycin by 0.16 
grams were added. The solution was then stored in the refrigerator and settled for 3 (three) days to form a 
supernatant. The resulting supernatant was further used as the diluent, while the sediment was removed. 
Semen was collected at 8 a.m. using an artificial vagina. Furthermore, macroscopic evaluations (volume, color, 
consistency, pH, and odor) and microscopic evaluations (mass movement, concentration, motility, viability, and 
abnormality) were carried out to determine the quality of the fresh semen. The semen that were used must have at 
least ++ mass movement, motility above 70%, and abnormalities below 20%. After evaluating the quality of the 
semen, the semen was divided into 5 parts and added with skim milk-egg yolk and jamblang leaves extract 
according to the treatment and then homogenized. The desired concentration was 100 million spermatozoa/ml of 
the diluent. 
The semen freezing process consisted of glycerolization, equilibration, filling (inserting to straw), sealing (straw 
sealing), pre-freezing, freezing, and post-thawing. The semen that has been added by diluent of skim milk-egg 
yolk and jamblang leaves extract according to the treatment was cooled in the refrigerator until it reached a 
temperature of 4 °C. After that, glycerolization was conducted in the form of adding glycerol to semen gradually 
and slowly at a temperature of 4 °C for 1 hour aiming to prevent the occurrence of ice crystals and avoid the 
accumulation of intracellular electrolytes in spermatozoa. Then, equilibration was conducted at 4 °C for 3−4 hours. 
Equilibration is the adaptation process of the spermatozoa intracellular fluid to the new environment. Furthermore, 
semen that has been diluted was filled into the straw by 0.25ml/straw, then sealed. Straw sealing was done by 
placing it on a straw rack 2-3 cm above the surface of liquid nitrogen for 9 minutes (-110 °C to -140 °C), then the 
motility and viability of spermatozoa were examined. The next step was the freezing process that was performed 



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at -196 °C, in which the mini straws were put into liquid nitrogen and stored in a container for 7 days. Each sample 
was then thawed again by inserting the straw into water at 37 ºC for 15 seconds. Furthermore, evaluation of the 
motility and viability of spermatozoa were examined. 
Fresh semen quality data were analyzed descriptively, while semen quality data before freezing (pre-freezing) and 
after thawing (post-thawing) were analyzed using Analysis of variance (Anova). Duncan Multiple Range Test 
were conducted if difference was found. 
3. Results and Discussion 
Quality of Fresh Semen of Aceh Cattle 
Before further processing into frozen semen, fresh semen was evaluated to know the semen feasibility. The 
evaluation results of the semen quality of Aceh cattle were shown in Table 1. 
 
Table 1. Quality of Fresh Semen of Aceh Cattle 

Parameter Observation Results 
Macroscopic  
      Volume (ml)      3.75 ± 0.35 
      Color       Milky white 
      Consistency      Medium 
      Odor      Fishy (typical) 
      Acidic Level      7.00 ± 0.00 
        
Microscopic        
     Mass Movement        ++ 
     Motility (%)       81.5 ± 7.78 
     Concentration (106/ ml)       1.68 ± 0.60 
     Viability of sperm (%)       92.68 ± 1.76 
     Abnormality (%)       5.86 ± 0.02 

 
The average volume of Aceh cattle semen obtained was 3.75 ± 0.35 ml/ejaculation with a range between 3.50-
5.00 ml. The average volume of semen obtained from Aceh cattle in this study was lower than Bali cattle which 
was 4.5 ± 2.3 ml (Ratnawati et al., 2008), Brahman cattle which was 4.72 ± 1.82 ml (Kuswahyuni, 2009), and 
Fries Holstein (FH) cattle which was 8.8 (Komariah et al., 2013), and limousine cattle which was 6.75 ± 0.68 ml. 
However, it was relatively higher than the average semen volume of Ongole Crossbreed cattle which was 2.6 ± 
1.5 ml (Affandhy et al., 2013). Such differences were caused by various factors, including nation, age, food level, 
temperature, frequency of storage, testicular size, and body weight (Fuerst-Waltl et al., 2006). This is supported 
by the statement given by (Hafez, 2004) that the characteristics of semen is affected by the age of the male and the 
interaction between age and the storage interval. Significant relationship also occurs between age and season so 
that it can affect the concentration of ejaculation volume and the percentage of spermatozoa motility (Brito et al., 
2002; Boujenane and Boussaq, 2013).  
The color of semen reflects the viscosity of the semen. In general, the color of fresh semen of Aceh cattle obtained 
in this study was milky white, while the consistency was medium (slightly runny) with a concentration of 1.68 ± 
0.60 × 109. This was reinforced by the opinion stated by Nugraha et al. (2019) that semen with medium consistency 
had a spermatozoa cell concentration of 1000 million – 2000 million or more per ml. The average pH of Aceh 
cattle semen obtained in this study was 7.00 ± 0.00 ranging from 6.8 to 7.2. This result is relatively the same as 
FH cattle semen which was 6.9 ± 0.1 (Komariah et al., 2013) and PO cattle which was 7.00 ± 0.00 (Sholikah et 
al., 2016) obtained in the previous study. Spermatozoa which has good quality has characteristics of having mass 
movement and motility with progressive movement. The mass movement of fresh semen of Aceh cattle obtained 
in this study was (++). This was indicated by black clouds that are not so dark but they move fast. This result is 
similar to the previous report (Santoso, 2021) that the mass movement of bovine spermatozoa that are suitable for 
processing ranges from (++) to (+++). The observation results of the average spermatozoa were 1.68 ± 0.60 x 
106/ml with a range of 1000–1200 x 106 sperm/ml. The average spermatozoa concentration in Aceh cattle obtained 
in this study was relatively the same as the spermatozoa concentration in Limousine cattle of 1153.64 ± 127.50 x 
106/ml and Simmental cattle of 1129.75 ± 180.99 x 106 spermatozoa/ml obtained in the previous research 
(Sukmawati et al., 2014). Motility or progressive movement of spermatozoa after ejaculation is always used as the 



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easiest guide in evaluating the semen quality for further processing. Spermatozoa motility of fresh semen of Aceh 
cattle obtained was 81.5 ± 7.78% with a range between 70.00%-83.00%. This result is higher than the percentage 
of PO cattle motility obtained in the previous study which was 70.00 ± 0.00% (Sholikah et al., 2016). The average 
percentage of living spermatozoa in the fresh semen of Aceh cattle obtained this study was 92.68 ± 1.76% with a 
range of 90.00% to 95.00%. This result is higher than the average percentage of living spermatozoa in Bali cattle 
obtained in the previous research which was 75% (Savitri et al., 2014), but lower than the percentage of living 
spermatozoa in Bali cattle which was 88.03 ± 3.07% (Ratnawati et al., 2008) and limousine cattle which was 94.08% 
(Sukmawati, 2014). The percentage of abnormal spermatozoa from fresh semen of Aceh cattle obtained in this 
study was 5.86 ± 0.02% ranging from 7.00% to 11.00%. The percentage of abnormal spermatozoa obtained in this 
study is relatively the same as revealed in the previous report (Dewi et al., 2012) that the percentage of abnormal 
spermatozoa in Bali cattle bred in Indonesia was 6.56 ± 3.05%, but higher than the previous study (Zulyazaini et 
al. al., 2016) in Aceh cattle, which was 3.52 ± 8.40% and limousine cattle which was 4.33 ± 1.2% (Sunami et al. 
2017). 
Percentage of Spermatozoa Motility of Aceh Cattle due to the Addition of Jamblang Leaves Extract in the 
Skim Milk and Egg Yolk Extender during Pre-freezing and Post-thawing 
Spermatozoa motility is an important indicator used to determine the quality of semen. The percentages of 
spermatozoa with progressive motility on pre-freezing and post-thawing examinations after being provided with 
the treatment of various concentrations of jamblang leaves extract in the skim milk-egg yolk extender are presented 
in Table 2. 
 
Table 2. Percentage of Spermatozoa Motility of Aceh Cattle due to the Addition of Jamblang Leaves Extract in 
the Skim Milk and Egg Yolk extender during Pre-freezing 

Treatments Observation Period 
Pre-freezing Post-thawing 

J0 (0%) 40.05cd±3.05 33.61cd±4.85 
J1 (0.2%) 31.77bc±9.80 29.59bc±6.72 
J2 (0.4%) 23.85a±3.89 20.22d±4.70 
J3 (0.6%) 55.85d±6.48 52.71d±5.92 
J4 (0.8%) 26.16ab±5.19 23.53ab±3.73 

 
The results of variance revealed that the addition of jamblang leaves extract in the skim milk and egg yolk extender 
significantly affected (P<0.01) the progressive motility of spermatozoa on pre-freezing examination. Further tests 
showed that there was significant difference between J0 treatment (skim milk-egg yolk) (P<0.01) and J2 treatment 
(skim milk-egg yolk + jamblang leaves extract of 0.4%) and J4 (skim milk-egg yolk + jamblang leaves extract of 
0.8%). However, no differences were found between J0 treatment and J1 treatment (skim milk- egg yolk + 
jamblang leaves extract 0.2%) and J3 treatment (skim milk-egg yolk + jamblang leaves extract 0.6%). Furthermore, 
significant differences were also found between J1 treatment (skim milk-egg yolk + jamblang leaves extract 0.2%) 
(P<0.01) and J2 treatment (skim milk-egg yolk + jamblang leaves extract 0.4%) and J4 (skim milk- egg yolk + 
jamblang leaves extract 0.8%). In addition, differences were also found between J3 treatment (skim milk-egg yolk 
+ jamblang leaves extract 0.6%) and J1, J2 and J4 treatments. The highest percentage of spermatozoa motility was 
obtained from J3 treatment with the addition of jamblang leaves extract by 0.6% of diluent, reaching 55.48%. This 
result was higher compared to the previous study conducted by Samsudewa and Suryawijaya (2008), which 
obtained 45% on spermatozoa motility of Simmental cow. Similarly, report from the research conducted by Umar 
and Maharani (2005) revealed that 9 minutes pre-freezing on limousine cattle provides 47.25% percentage of 
spermatozoa motility as well as the research report of Madyawati et al. (2013) which obtained percentage rate of 
47.5% from Holstein Friesian cattle. The percentage obtained in this study is still below the percentage of sperm 
motility of wagyu cattle as reported by Hanifi et al. (2016) using Andromed® diluent which was 58.33%. 
According to Pratiwi et al. (2006) the damage of cold shock and the formation of ice crystals was not too high 
during the pre-freezing process compared to the process. 
According to Buffone et al. (2012), decreased motility can also be caused by the thawing process. During thawing 
process, spermatozoa are highly susceptible to cell damage due to sudden changes in osmotic pressure caused by 
rapid thawing. The constant changes of temperature causes damage to the spermatozoa. 



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Furthermore, the results of variance showed that the addition of jamblang leaves extract in the skim milk-egg yolk 
extender significantly affected (P<0.01) the spermatozoa motility during post-thawing examination. Further tests 
showed that there were significant differences between J0 treatment (skim milk-egg yolk) (P<0.01) and J2 
treatment (skim milk-egg yolk + jamblang leaves extract 0.4%) and J4 treatment (skim milk-egg yolk + jamblang 
leaves extract 0.8%). However, no difference found between J1 treatment (skim milk-egg yolk + jamblang leaves 
extract 0.2%) and J3 treatment (skim milk-egg yolk + jamblang leaf extract 0.6%). In addition, significant 
differences were found between J1 treatment (skim milk-egg yolk + jamblang leaves extract 0.20%) (P<0.01) and 
J2 treatment (skim milk-egg yolk + jamblang leaves extract 0.4%) and J4 treatment (skim milk- egg yolk + 
jamblang leaves extract 0.8%). J3 treatment (skim milk-egg yolk + jamblang leaves extract 0.6%) was also 
different from J1, J2 and J4. The highest percentage of spermatozoa motility during post-thawing process (52.71%) 
was obtained from J3 treatment, while the lowest was found in J2 treatment (20.22%).  
Spermatozoa motility is one of the benchmarks in evaluating semen to be used in artificial insemination, but the 
microscopic evaluation on spermatozoa motility is subjective (Gillan et al., 2004). In addition, Petyim et al. (2014) 
also revealed that the minimum requirement for individual sperm motility in post-thawing process to be used in 
artificial insemination is 40%. Based on this opinion, frozen semen of Aceh cattle in the skim milk-egg yolk 
extender added with jamblang leaves extract by 0.60% (J3) has met the requirements to be used in the artificial 
insemination, since its post-thawing motility percentage was 52.71%. Such situation was assumed because the 
treatment has optimized the rate of fructolysis which causes the energy needs to live and move spermatozoa 
fulfilled. Jamblang leaves extract containing antioxidants with diluent of 0.6% (J3) can bind free radicals so as to 
prevent lipid peroxidation which can inhibit glycolysis and motility (Thuwanut et al., 2008). In J4 treatment (skim 
milk-egg yolk + addition of jamblang leaves extract of 0.8%), post-thawing motility decreased. This indicates that 
the dose was not suitable to be used as a diluent. According to Basavaraja and Hegde (2004), the addition of 
inappropriate diluent as a medium for spermatozoa can be toxic to spermatozoa. Signs of cold shock or non-
isotonic media with the semen will cause circular motions. When Spermatozoa stop moving, they are considered 
dead (Feradis, 2009). 
Motility is the progressive forward movement of spermatozoa. This progressive movement has an important role 
in the success of fertilization (Kostaman and Sutama, 2006). The respiration process in spermatozoa metabolism 
produces lactic acid. The longer the respiration process, the more lactic acid produced. Lactic acid has an effect 
on reducing the life of spermatozoa motility (Ferramosca and Zara, 2014). Spermatozoa motility depends on 
mitochondrial function. Adenosine Triphosphate (ATP) is produced by oxidative phosphorylation in the 
mitochondrial membrane and transferred to microtubules as energy for motility, therefore the decrease in sperm 
motility due to clotting is believed to be related to mitochondrial damage. Sperm motility can occur if the sperm 
has a membrane that functions properly to produce energy for movement. During the freezing process, extreme 
changes in temperature and osmolality occur so that it will damage the lipid composition of the plasma membrane 
which has an effect on the decrease of sperm motility (Januskauskas et al., 2003). 
Comparison of spermatozoa with progressive motility from pre-freezing process to post-thawing shows varied 
numbers. It can be seen in Figure 1. 

 
Figure 1. Comparison of Percentage of Spermatozoa Motility at Pre-freezing and Post thawing Process 



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Figure 1 shows the best percentage decrease in motility (4.99%) was found in J3 treatment (addition of jamblang 
leaves extract of 0.6%), while the highest decrease (16.07%) was found in the treatment without the addition of 
jamblang leaves extract. Therefore, it can be summed up that the addition of jamblang leaves extract can reduce 
the percentage decrease in motility from the pre-freezing stage to the post-thawing stage. This condition proves 
that the antioxidants contained in jamblang leaves can suppress cell membrane damage due to cold shock. In 
accordance with the results of previous research performed by Bucak et al. (2008), it was discovered that 
antioxidant additives can be used to increase the efficiency of sperm cryopreservation, where the use of an 
antioxidant (cysteine) gave the best results for post-thawing spermatozoa motility (61.0±1.9%). It was assumed 
that during the freezing and thawing process, the spermatozoa was damaged so that it affects the stability and 
living functions of the cell membrane, thus the percentage of spermatozoa motility after thawing decreased. This 
is supported by the statement made by Nagy et al. (2004) that 50% of spermatozoa will die after freezing and 
thawing process. Spermatozoa can be destroyed rapidly in the cooling and freezing process, in which during the 
thawing process, spermatozoa are highly susceptible to cell damage due to sudden changes in osmotic pressure 
caused by rapid thawing. The spermatozoa is also damaged by the constant changes of temperature in which the 
pre-freezing process was done for 5 – 9 minutes at -140oC, freezing was done for 7 days of storage at -196oC until 
the post-thawing process which took 15 seconds at a 37oC.  
Percentage of Viability of Frozen Semen of Aceh Cattle in the Skim Milk-Egg Yolk Extender with the 
Addition of Jamblang Leaves Extract during Pre-freezing and Post-thawing Process 
Living spermatozoa test (viability) was employed as an indicator of the integrity of membrane structure. Data on 
the percentage of living spermatozoa (viability) on pre-freezing and post-thawing examinations after provided by 
treatments in various concentrations of jamblang leaves extract in diluent of skim milk-egg yolk are presented in 
Table 2. 
 
Table 2. Percentage of Spermatozoa Viability of Aceh Cattle due to the Addition of Jamblang Leaves Extract in 
the Skim Milk-Egg Yolk Extender during Pre-freezing and Post-thawing 

Treatments Observation Period 
Pre-freezing Post-thawing 

J0 (0 %) 49.50cd±12.52 33.12cd±22.64 
J1 (0.2 %) 43.85bc±5.04 33.04bc±14.63 
J2 (0.4 %) 41.25a±2.05 28.41d±3.95 
J3 (0.6 %) 56.59d±1.21 53.94d±3.94 
J4 (0.8 %) 42.99ab±4.76 32.43ab±5.77 

 
The results of variance discovered that the addition of jamblang leaves extract in the skim milk-egg yolk extender 
significantly affected (P<0.01) the percentage of spermatozoa viability of Aceh cattle during the pre-freezing 
process. The results showed that the highest percentage of spermatozoa motility after pre-freezing was obtained 
from J3 treatment (skim milk-egg yolk + jamblang leaves extract 0.6%) which was 56.59%, while the lowest 
percentage of spermatozoa motility obtained from J2 treatment (skim milk-egg yolk + jamblang leaves extract 
0.4 % which was 41.25%. The decrease in the percentage of living spermatozoa after pre-freezing process was 
caused by cold shock and damage to the spermatozoa membrane due to ice crystals which caused differences in 
osmotic pressure outside and inside the cell, thus it increases the death rate of spermatozoa. Khan and Ijaz (2008) 
stated that an increase in osmotic pressure in the semen plasma can reduce the permeability of spermatozoa 
membranes and increase damage to the membrane which leads to the death of spermatozoa. The results of previous 
research carried out by Pratiwi et al. (2014) obtained the percentage of viability of Simmental cattle spermatozoa 
using Andromed® in pre-freezing process for 9 minutes which was 58.17%. The decrease in viability during pre-
freezing process was less than post-thawing process because the spermatozoa were adapting to cold temperatures 
during the pre-freezing process to prevent the death of more spermatozoa so that less damage can be obtained by 
the spermatozoa in the post-thawing process. 
The average percentage of spermatozoa viability in the skim milk-egg yolk extender with additional of jamblang 
leaves extract during the post-thawing process is described in Table 2. The results of the variance stated that the 
addition of jamblang leaves extract in the skim milk-egg yolk extender significantly affected (P<0 0.05) the 
spermatozoa viability in Aceh cattle in the post-thawing process at 37ºC for 15 seconds. Furthermore, J3 treatment 



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(skim milk-egg yolk + jamblang leaves extract 0.6%) showed the highest percentage (53.94%) and were 
significantly different (P < 0.05) with J1, J2, and J4 treatments, but not different from J0 treatment (without the 
addition of jamblang leaves extract). The percentage of viability of Aceh cattle in this study was lower than the 
research results reported by Sukmawati et al. (2014) in Simmental cattle (61.72%), limousine cattle (62.29%), and 
FH cattle (60.85%). The decrease in viability is still considered normal because according to Pesch and Bergmann 
(200), the decrease in the quality of spermatozoa after freezing is very high, which is around 50%. Arifiantini et 
al (2006) claimed that artificial insemination needs 40-50 % live and motile spermatozoa. Differences in decreased 
viability between individuals also possibly occur. According to Zahn et al. (2006), each individual has different 
protein composition of semen plasma and spermatozoa membranes and it is related to the resistance of spermatozoa 
to freezing. In addition, semen plasma proteins such as osteopoitin and lipocalin-clump prostaglandin D-synthase 
varied between males. Furthermore, Holden et al. (2017) stated that semen plasma composition is not homeostatic 
and varies not only between species but also between individuals and between ejaculations from the same animal. 
The decrease in viability in the post-thawing process is due to the very low temperature during freezing. During 
semen processing, the environmental conditions of spermatozoa extremely change. Lemma (2011) stated that there 
are two temperature ranges that are susceptible to spermatozoa damage during freezing, those are the cooling 
period (0ºC to -5ºC) and ice crystal formation (-6ºC to -15ºC). The percentage of spermatozoa viability from pre-
freezing to post-thawing decreased. The decrease in the spermatozoa viability of Aceh cattle in the diluent of skim 
milk-egg yolk added with jamblang leaves extract with various concentrations is presented in the following Figure 
2. 

 
Figure 2. Comparison of Spermatozoa Viability Percentage during Pre-freezing and Post-thawing Process 

 
Figure 2 shows that the decrease of viability percentage of in each treatment varies. J3 treatment (skim milk-egg 
yolk + addition of jamblang leaves extract of 0.6%) provided the lowest percentage decrease of 4.68%, while J0 
treatment (without the addition of jamblang leaves extract) provided the highest percentage decrease of 33 ,09%. 
This shows that the addition of jamblang leaves extract can reduce spermatozoa damage due to cold shock. Savitri 
et al.  (2014) stated that the percentage of live spermatozoa in Bali cattle in the skim milk-egg yolk extender with 
additional vitamin C on post-thawing examination reached 54.33%. Furthermore, Asadpour et al. (2012) claimed 
that the addition of superoxide dismutase (SOD) and butylated hydroxytoluene (BHT) in semen citrate egg-yolk 
(CEY) extender can increase the percentage of spermatozoa viability. Similar to vitamin C, SOD and BHT, 
jamblang leaves extract also contains antioxidants. According to Margaret et al. (2015) jamblang leaves extract 
contains alkaloids, flavonoids, terpenoids, steroids, phenolics, and saponins. In this case, Antioxidants play a role 
in binding oxygen radicals contained in cells to prevent the formation of lipid peroxidation which can inhibit 
glycolysis and motility.  
4. Conclusion 
Based on the results of this study, it was concluded that the addition of jamblang leaves extract in the skim milk-
egg yolk extender affected the percentage of spermatozoa motility and viability of Aceh cattle during pre-freezing 



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and post-thawing. The best percentage of motility and viability was found in the concentration of jamblang leaves 
extract of 0.6% in 100 ml of skim milk-egg yolk extender, both during pre-freezing and post-thawing. 
5. Suggestion 
It is expected that further research will be performed concerning the addition of jamblang leaves extract (Syzygium 
cumini) in other diluents in the frozen semen production process for Aceh cattle so that the best formulation of 
diluent media can be obtained in maintaining the quality of frozen semen of Aceh cattle. 
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    /HRV (Za stvaranje Adobe PDF dokumenata najpogodnijih za visokokvalitetni ispis prije tiskanja koristite ove postavke.  Stvoreni PDF dokumenti mogu se otvoriti Acrobat i Adobe Reader 5.0 i kasnijim verzijama.)
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    /NLD (Gebruik deze instellingen om Adobe PDF-documenten te maken die zijn geoptimaliseerd voor prepress-afdrukken van hoge kwaliteit. De gemaakte PDF-documenten kunnen worden geopend met Acrobat en Adobe Reader 5.0 en hoger.)
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    /ENU (Use these settings to create Adobe PDF documents best suited for high-quality prepress printing.  Created PDF documents can be opened with Acrobat and Adobe Reader 5.0 and later.)
  >>
  /Namespace [
    (Adobe)
    (Common)
    (1.0)
  ]
  /OtherNamespaces [
    <<
      /AsReaderSpreads false
      /CropImagesToFrames true
      /ErrorControl /WarnAndContinue
      /FlattenerIgnoreSpreadOverrides false
      /IncludeGuidesGrids false
      /IncludeNonPrinting false
      /IncludeSlug false
      /Namespace [
        (Adobe)
        (InDesign)
        (4.0)
      ]
      /OmitPlacedBitmaps false
      /OmitPlacedEPS false
      /OmitPlacedPDF false
      /SimulateOverprint /Legacy
    >>
    <<
      /AddBleedMarks false
      /AddColorBars false
      /AddCropMarks false
      /AddPageInfo false
      /AddRegMarks false
      /ConvertColors /ConvertToCMYK
      /DestinationProfileName ()
      /DestinationProfileSelector /DocumentCMYK
      /Downsample16BitImages true
      /FlattenerPreset <<
        /PresetSelector /MediumResolution
      >>
      /FormElements false
      /GenerateStructure false
      /IncludeBookmarks false
      /IncludeHyperlinks false
      /IncludeInteractive false
      /IncludeLayers false
      /IncludeProfiles false
      /MultimediaHandling /UseObjectSettings
      /Namespace [
        (Adobe)
        (CreativeSuite)
        (2.0)
      ]
      /PDFXOutputIntentProfileSelector /DocumentCMYK
      /PreserveEditing true
      /UntaggedCMYKHandling /LeaveUntagged
      /UntaggedRGBHandling /UseDocumentProfile
      /UseDocumentBleed false
    >>
  ]
>> setdistillerparams
<<
  /HWResolution [2400 2400]
  /PageSize [612.000 792.000]
>> setpagedevice

