KARAKTERISTIK KINEMATIK SPERMA SEMEN BEKU SAPI ACEH DALAM DUA PENGENCER
Abstract
Penggunaan pengencer dalam produksi semen beku dapat memengaruhi pola gerak (kinematik) sperma. Penelitian ini bertujuan untuk membandingkan karakteristik kinematik sperma semen beku sapi Aceh dalam dua jenis pengencer yang berbeda. Sampel semen beku diperoleh dari Balai Besar Inseminasi Buatan (BBIB) Singosari dan Balai Inseminasi Buatan (BIB) Lembang. Samplel semen beku dari lima ekor sapi Aceh jantan, dua ekor menggunakan pengencer Tris Kuning Telur (TKT) dan tiga ekor menggunakan pengencer skim kuning telur (SKT) masing-masing 5 batch produksi dan 10 straw per batch. Semen beku di-thawin dalam suhu 37oC selama 30 detik. Semen dikeluarkan dari straw dan disimpan dalam tabung mikro dan diletakkan pada dry bath (37oC). Semen yang telah dethawing diambil sebanyak 10 μl dan diencerkan dengan 50 μl Phosphate Buffer Saline (PBS), kemudian dihomogenkan dan diambil sebanyak 4 µL diletakkan di atas gelas objek, ditutup dengan gelas penutup. Sampel dievaluasi menggunakan computer assisted semen analysis (CASA; Sperm Vision, Minitube Germany). Kinematik sperma yang diuji adalah VAP (μm/s), VCL (μm/s), VSL (μm/s), STR (%), LIN (%), WOB (%), ALH (μm), BCF (Hz)DAP (μm/s), DCL (μm/s), DSL (μm/s). Hasil menunjukkan jarak tempuh sperma (DAP, DCL, DSL), dan kecepatan pergerakan sperma (VAP, VCL, VSL) signifikan (p<0,05) lebih tinggi pada semen beku dalam pengencer TKT dibandingkan dengan pengencer SKT. Parameter kinematik sperma yang lain (STR, LIN, WOB, ALH, dan BCF) tidak menunjukkan perbedaan. Penelitian menyimpulkan sperma semen beku dalam pengencer TKT menunjukkan nilai kinematik lebih tinggi pada beberapa variabel dibandingkan dengan pengencer SKT.
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