Cryopreservation of Aceh Swamp Buffalo (Bubalus bubalis) Semen with Combination of Glycerol and Lactose
<p class="IsiAbstrakIndo">Aceh swamp buffaloes<span lang="AR-YE" dir="RTL"> </span><em>(Bubalus bubalis) </em>are decreasing their population and genetic quality. This study was conducted to determine the influence of lactose and glycerol cryoprotectants on spermatozoa of Aceh swamp buffaloes<span lang="AR-YE" dir="RTL"> </span><span lang="EN-GB">after</span><span lang="AR-YE" dir="RTL"> </span>thawing<em>.</em><span lang="AR-YE" dir="RTL"> </span><span lang="EN-GB">This study used completely</span>a factorial randomized design with nine treatments, and five replications. Fresh semen of the Aceh swamp buffalo were diluted by using a combination extender lactose cryoprotectants 0 mM (L<sub>0</sub>), 60 mM (L<sub>60</sub>), 120 mM (L<sub>120</sub>) and glycerol 3% (G<sub>3</sub>), 5% (G<sub>5</sub>), 7% (G<sub>7</sub>) with the equilibration of 4 hours. The results showed that the combination of cryoprotectants L<sub>120</sub>G<sub>7 </sub>influenced significantly (P < 0.05) on the quality of spermatozoa of the Aceh swamp buffalo <em>(B. bubalis)</em><span lang="AR-YE" dir="RTL"> </span><span lang="EN-GB">after</span><span lang="AR-YE" dir="RTL"> </span>thawing<em>.</em><span lang="AR-YE" dir="RTL"> </span><span lang="EN-GB">The percentage of sperm motility L</span><sub>120</sub>G<sub>7</sub> (42.60 ± 1.14); viability L<sub>120</sub>G<sub>7 </sub>(55.00 ± 0.71); acrosome integrity L<sub>120</sub>G<sub>7</sub> (52.00 ± 0.71); and plasma membrane integrity L<sub>120</sub>G<sub>7</sub><span lang="AR-YE" dir="RTL"> (</span>53.20 ± 1.48). The combination of lactose cryoprotectants 120 mM (L<sub>120</sub>) and glycerol 7% (G<sub>7</sub>) was the best combination to maintain the quality of spermatozoa of swamp buffalo. This finding could be used to define a policy for the spermatozoa storage of Aceh swamp buffalo to artificial insemination (AI). </p>