The effect of crude guava leaf tannins on motility, viability, and intact plasma membrane of stored spermatozoa of Etawa crossbred goats

Abstract

<jats:p>Aim: The aim of this study was to know crude guava leaf tannins effect on motility, viability, and intact plasma membrane of stored spermatozoa of Etawa crossbred goats. Materials and Methods: Macroscopic assessment of normal Etawa crossbred semen was followed by dilution with a glucose solution at a 1:10 ratio to increase volume. The diluted semen was treated by adding crude guava leaf tannins into 1 ml of the semen glucose diluent, and five treatments were obtained, namely, control group (C), with no added tannins; treatment Group 1 (T1), with 3%; treatment Group 2 (T2), with 6% tannins; treatment Group 3 (T3), with 12% tannins; and treatment Group 4 (T4), with 24% tannins. Each treatment used five replications. Then, microscopic analysis of the treated and control semen was carried out after 15 days of storage at 4-5°C temperature. The parameters observed were motility, pH, viability, abnormality, and intact spermatozoa plasma membrane. Results: The spermatozoa motility in Group C was the highest (76.60±1.47). The motility in Group T1 did not differ from that in Group C, but was different and higher than that in Groups T2, T3, and T4. The pH of Group C tended to be acidic after 15 days of storage (4.78±0.01) as compared to the initial pH of fresh semen (6.76±0.12). The pH in Group C did not differ from that in the Groups T1 and T2, but differed from that in the T3 and T4 groups; the pH in the T3 and T4 groups was similar. The viability of spermatozoa in the T1 group was higher than that in all treatments (64.60±2.76); the lowest values were found in Group C (28.94±1.02). Group C had the lowest number of normal spermatozoa, with a mean of 72.58±3.48. The total number of abnormalities in the T2 group did not differ from those in the T3 group, and abnormalities in the T4 group did not differ from those in Group C, which exhibited the highest abnormalities in the head, neck, and tail. The most significant decrease was observed in the intact plasma membrane of spermatozoa on addition of 12% and 24% crude guava leaf tannin in glucose diluents. Conclusion: The addition of 3% crude guava leaf tannin to crossbred Etawa goat semen diluted with glucose diluent and stored for 15 days at 4-5°C resulted in a significant effect on spermatozoa motility, viability, and intact plasma membrane, whereas the administration of 24% crude guava leaf tannin resulted in low live percentage of spermatozoa.</jats:p>

Effects of Diluent pH on Enrichment and Performance of Dairy Goat X/Y Sperm

“…The pH environment to which semen is exposed can affect the motility and metabolic level of spermatozoa, with metabolism and motility being hindered and motility being diminished in a weakly acidic environment. Nevertheless, these characteristics are enhanced in a weakly alkaline environment (Zhou et al, 2015;Wurlina et al, 2020). Sperm swims forward (upward) in their natural state, therefore aiding the separation of X/Y sperms by changing the incubation conditions (Shi et al, 2021).…”

Plant Extracts as Alternative Additives for Sperm Preservation

“…Leaf tannins from common guava have been added to the semen extender for the preservation of Etawa goat sperm [77] for 15 days at 4-5 • C. The range of concentrations employed was from 3% to 24%. The supplementation of the semen extender with guava extract improved sperm motility, viability, and plasma membrane integrity and reduced the percentage of sperm abnormalities.…”

“…Leaf tannins from common guava have been added to the semen extender for the preservation of Etawa goat sperm [ 77 ] for 15 days at 4–5 °C. The range of concentrations employed was from 3% to 24%.…”

The Effect of Jamblang Leaves Extract (Syzygium cumini) Inclusion Skim Milk-Egg Yolk Extender on Motility, Abnormality and Viability of Aceh Cattle Spermatozoa Stored at 4ºC

“…The higher the tannins contained in the jamblang leaf extract, the higher the nutrient transport in the membrane. According to Wurlina et al (2020) if the permeability of the membrane as the entry point for nutrients in producing energy is disrupted, it can cause nutrient transport to be disrupted, so that the spermatozoa experiences a lack of energy and reduces sperm motility.…”

“…Tannins possessed by jamblang leaves cause the spermatozoa to be deficient in nutrients due to disruption of nutrient transport through the membrane. According to Wurlina et al (2020), high levels of tannins in diluents can interfere with the transport of nutrient into spermatozoa. Lack of nutrients can decrease the motility and viability of spermatozoa.…”