Electronic Theses and Dissertation

Konsentrasi progesteron dapat digunakan untuk menentukan kondisi hewan dalam keadaan infertil, normal, dan bunting serta dapat digunakan untuk mendeteksi estrus, pemeriksaan kebuntingan dan mengetahui kondisi patologis lainnya. progesteron adalah hormon penting yang mengatur fungsi normal dari siklus reproduksi hewan betina. penelitian ini bertujuan untuk mengetahui kadar progesteron saat fase awal luteal pada sapi aceh repeat breeding (rb) dan fertil. penelitian ini menggunakan enam ekor sapi aceh betina dewasa, umur 3-5 tahun, bobot badan 150-250 kg dengan sampel darah diambil pada hari ke-3 dan ke-6 setelah estrus. pemeriksaan konsentrasi hormon progesteron menggunakan metode enzyme-linked immunosorbent assay (elisa) dan data yang diperoleh dianalisis menggunakan uji mann whitney u. hasil penelitian menunjukan kadar progesteron pada hari ke-3 dan ke-6 yaitu 5,68±4,98 ng/ml dan 6,61±3,04 ng/ml pada sapi fertil dan 0,35±0,07 ng/ml dan 2,74±0,58 ng/ml pada sapi aceh rb. kadar progesteron pada hari ke-3 menunjukan perbedaan yang nyata antara sapi aceh rb dan fertil . disimpulkan bahwa sapi aceh rb memiliki kadar progesteron yang lebih rendah pada fase awal luteal dibandingkan dengan sapi fertil. kata kunci: fase luteal, kawin berulang, progesterone, sapi aceh

Progesterone concentrations can be used to determine the condition of animals in infertile, normal, and pregnant conditions and can be used to detect estrus, check pregnancy and find out other pathological conditions. Progesterone is an important hormone that regulates the normal functioning of the female animal's reproductive cycle. The purpose of this study was to determine progesterone levels during the early luteal phase in repeat breeding (RB) and fertile aceh cows. This study aims to determine the level of progesterone during the early luteal phase in repeat breeding (RB) and fertile aceh cattle. Six adult female Aceh cattle, aged 3-5 years, weight 150-250 kg were used in this study, with blood samples taken on the 3rd and 6th day after estrus. Examination of the concentration of the hormone progesterone using the enzyme-Linked Immunosorbent Assay (ELISA) method and the data obtained were analyzed using the Mann Whitney U test. The results showed that progesterone levels on the 3rd and 6th days were 5.68±4.98 ng/ml and 6.61±3.04 ng/ml in fertile cows and 0.35±0.07 ng/ml and 2.74±0.58 ng/ml in RB aceh cows. Progesterone levels on day 3 showed a significant difference between RB and fertile aceh cows. It was concluded that RB aceh cows had lower progesterone levels in the early luteal phase compared to fertile cows. Keywords: Luteal phase, repeat breeding, progesterone, aceh cattle