N. Isnaini, - (2021) Seasonal variations in semen quality of pasundan bulls in their native tropical environment. American Journal of Animal and Veterinary Sciences, 16 (2). pp. 124-129.
Abstract
Keberhasilan inseminasi buatan sangat tergantung pada kualitas semen, yang sangat erat kaitannya dengan faktor lingkungan. Namun, informasi mengenai pengaruh musiman terhadap kualitas semen pejantan Pasundan masih sangat minim. Penelitian ini bertujuan untuk mengkaji variasi musiman kualitas semen pejantan Pasundan di lingkungan asalnya. Penelitian ini menggunakan 203 ejakulasi yang dihasilkan oleh dua ekor pejantan Pasundan umur empat tahun. Sapi jantan dipelihara dalam kondisi manajemen standar di Balai Inseminasi Buatan Lembang. Hasil penelitian menunjukkan bahwa nilai rata-rata volume semen, konsentrasi sperma, jumlah sperma total, motilitas sperma individu, motilitas sperma pasca pencairan dan produksi semen beku pejantan Pasundan adalah 5,7 mL, 1,17 miliar/ml, 6,57 miliar/ejakulasi, 62,1,0 40,6 dan 272% dosis/ejakulasi, masing-masing. Volume semen, motilitas sperma individu dan motilitas sperma pasca pencairan tidak dipengaruhi oleh musim yang berbeda (P>0,05). Sedangkan penurunan signifikan konsentrasi sperma (P<0,05), jumlah sperma total (P<0,01) dan produksi semen beku (P<0,01) diamati pada musim kemarau dibandingkan dengan musim hujan. Perubahan kecil pada suhu lingkungan, suhu lingkungan maksimum, kelembaban relatif dan indeks suhu-kelembaban terdeteksi di antara musim. Di sisi lain, sekitar 52% durasi sinar matahari terdeteksi di musim kemarau dibandingkan dengan musim hujan. Kesimpulannya, kualitas semen pejantan Pasundan berkurang selama musim kemarau, yang sangat terkait dengan peningkatan durasi sinar matahari.
English Abstract
The success of artificial insemination highly depends on the semen quality, in which it may significantly associate with the environmental factor. However, the information regarding the seasonal effects on semen quality of Pasundan bulls is still scarce. This study aimed to examine seasonal variation in semen quality of Pasundan bulls in their native environment. A total of 203 ejaculates produced by two Pasundan bulls aged at four years old were used in this study. The bulls were kept under standard management conditions in Lembang Artificial Insemination Center. The results showed that mean values of semen volume, sperm concentration, total sperm number, individual sperm motility, post-thawing sperm motility and frozen semen production of Pasundan bulls were 5.7 mL, 1.17 billion/ml, 6.57 billion/ejaculate, 62.1,0 40.6 and 272% doses/ejaculate, respectively. Semen volume, individual sperm motility and post-thawing sperm motility were not affected by different seasons (P>0.05). Whereas, the significant reduction of sperm concentration (P<0.05), total sperm number (P<0.01) and frozen semen production (P<0.01) were observed in the dry season as compared to the rainy season. The minor change in ambient temperature, maximum ambient temperature, relative humidity and temperature-humidity index were detected between seasons. On the other hand, about 52% greater sunshine duration was detected in the dry season compared to the rainy season. In conclusion, the semen quality of Pasundan bulls is reduced during the dry season, which is considerably associated with the increase in sunshine duration.
| Item Type: | Article |
|---|---|
| Depositing User: | Unnamed user with email repository.ub@ub.ac.id |
| Date Deposited: | 15 Dec 2021 06:40 |
| Last Modified: | 15 Dec 2021 06:40 |
| URI: | http://repository.ub.ac.id/id/eprint/187009 |
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