HUBUNGAN ANTARA LINGKAR SKROTUM DENGAN KARAKTERISTIK CAIRAN DAN SPERMATOZOA DALAM CAUDA EPIDIDYMIS PADA SAPI BALI [The Correlation of Scrotal Circumference, Spermatozoa of Epididymis Caudalis and Dilution Characteristic in Bali Cattle]

Abstract

ABSTRAK Artikel ini mendiskusikan hubungan antara ukuran lingkar skrotum sebagai variabel bebas dengan karakteristik spermatozoa dalam epididymis sebagai variabel-variabel tak bebas pada sapi Bali. Adapun karakteristik spermatozoa yang diamati meliputi penilaian terhadap warna dan konsistensi cairan, konsentrasi spermatozoa (total hidup dan mati), motilitas dan abnormalitas spermatozoa. Data diolah dengan analisis korelasi dan regresi. Analisis regresi menunjukkan bahwa warna dan konsistensi serta pH cairan epididymis berhubungan erat dengan ukuran lingkar skrotum sapi Bali. Setiap kenaikan 1 cm ukuran lingkar skrotum maka terjadi peningkatan sebesar 0,18 unit skor warna dan konsistensi cairan epididymis, sedangkan konsistensi sperma, persentase sperma mati,sperma abnormal dan motilitas sperma berhubungan erat dengan ukuran lingkar skrotum sapi Bali. Setiap kenaikan 1 cm ukuran lingkar skrotum maka konsentrasi sperma mengalami kenaikan sebesar 0,15x109/ml,persentase sperma mati menurun sebesar 0,22%,sperma abnormal primer menurun 0,25% dan skor gelombang massa sperma meningkat 0,18 unit. Kata kunci : korelasi, regresi, skrotum, sprematozoa, sapi Bali ABSTRACT This study discusses the correlation of scrotal circumferences as independent variable and the characteristic of spermatozoa in epididymis as dependent variable of Bali cattle. The characteristic of spermatozoa perceived to cover assessment to colour and abnormality of spermatozoa. Analyze data processed with analysis of correlation and regression. A regression analyze indicated that colour and consistency and also pH of dilution of epididymis closely related to the size of circle scrotum of Bali cattle. The increase in 1 cm of circular size measure of scrotum improved 0.18 unit of score of colour and consistency of dilution epididymis; while sperm consistency, percentage of death sperm, sperm abnormality and sperm motility were closely related to the size circle scrotum of Bali cattle. The increase in 1 cm of circular size measure of scrotum enhanced the concentration of sperm to 0.15x 10 9/ml, descreased the death percentage of sperm to 0,22% and decreased the abnormality of sperm to 0.25% and increased to 0.18 unit of score of mass wave of sperm. Keywords : correlation, regression, scrotum, epididymis sperm, Bali cattle