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All Journal Pastura; Journal Of Tropical Forage Science Jurnal Ilmu Ternak BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Ilmu Ternak Veteriner Jurnal Ternak Tropika ARSHI Veterinary Letters Jurnal Ilmiah Fillia Cendekia Jurnal Nutrisi Ternak Tropis dan Ilmu Pakan ZIRAA'AH MAJALAH ILMIAH PERTANIAN Media Kontak Tani Ternak JANHUS: Jurnal Ilmu Peternakan Journal of Animal Husbandry Science Jurnal Teknologi Hasil Peternakan PAKDEMAS : Jurnal Pengabdian Kepada Masyarakat Jurnal Produksi Ternak Terapan (JPTT) Farmers: Journal of Community Services Jurnal Agripet Animal Production Jurnal Veteriner
Nena Hilmia
Fakultas Peternakan Universitas Padjadjaran
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Vaginal Cytological Changes and Estrus Response Following Estrus Synchronization Using a Double Prostaglandin-F₂α and Gonadotropin Releasing Hormone in Pasundan Heifers Rini Widyastuti; Azis, Azhar Abdul; Setiawan, Rangga; Hilmia, Nena; Lubis, Alkaustariyah; Ridlo, Muhammad Rosyid
Jurnal Veteriner Vol. 27 No. 1 (2026)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19087/

Abstract

Pasundan cattle, an indigenous breed native to West Java, Indonesia, demonstrate significant adaptability and reproductive potential. However, their declining populations pose a threat to genetic conservation. Effective estrus synchronization is essential for enhancing reproductive efficiency and supporting fixed-time artificial insemination (FTAI) programs. Vaginal cytology profiling offers a reliable, noninvasive method for assessing estrus by evaluating the dynamics of epithelial and leukocyte cells, which reflect hormonal fluctuations. This study was aimed to investigate the cytological dynamics of vaginal epithelial, leukocyte cells and estrus response in Pasundan heifers subjected to double injection of prostaglandin F₂α (PGF₂α) and gonadotropin-releasing hormone (GnRH) synchronization. Nine Pasundan heifers, aged 1.5–2.0 years, were treated with PGF₂α with 2.75 μg/kg BW on days 0 and 11, followed by 2 μg/kg BW GnRH on day 12. Vaginal smears were collected daily from days 0 to 15, stained with 5% Giemsa, and examined microscopically to determine the proportions of parabasal, intermediate, superficial, keratinized, and leukocyte cells. The results indicated that the initial cytology showed a luteal phase dominated by parabasal (31.2%) and intermediate (30.6%) cells. Following hormonal treatment, superficial cells peaked at 70.9% on day 13, indicating estrus and estrogen dominance. By days 14–15, keratinized and parabasal cells had increased, confirming post-ovulatory luteal activity. The protocol achieved complete (100%) estrus synchronization among all heifers. It can be concluded that the double PGF₂ α-GnRH protocol effectively synchronized estrus in Pasundan heifers. Vaginal cytology has proven to be a sensitive and practical tool for monitoring reproductive phases, thereby supporting breeding management and conservation of this native genetic resource.
Co-Authors Aine Nur Firdausya Alfiah Almas Hamid An An Nurmeidiansyah, An An Ani Rosmayanti Annisaa Yusrina Asmara, Indrawati Yudha Asri Wulansari, Asri Azis, Akbar Azis, Azhar Abdul Bayani, Matni Syifa C Sumantri C. Sumantri Cece Sumantri Dani Garnida Dani Garnida Darlian Fachruddin Daud, Andre Rivianda Dedi Rahmat Dedi Rahmat Dedi Rahmat Dedi Rahmat Dedi Rahmat Didik N Hadi Didik Nurul Hadi Dikdik Nurulhadi Diky Ramdani Dinah Sholikhah Dity Asa Priyastomo Dudi Dudi dudi, dudi Edianingsih, Primiani Estria Furry Pramudyaswari Fauziah, Siti Ghina Firmansyah, Indra Gurnadi E HAIFA FARRAS IZDIHAR Harry Pariswara Heni Indrijani Husna, Afifah Iin Susilawati Iman Hernaman Imron, Muhamad Indrawati Yudha Asmara Irma Irma Irma Irma Ismiraj, Muhammad Rifqi Johar Arifin Laelatul Choiriyah Lubis, Alkaustariyah Maulana, Muhammad Irfan Mokhamad Fakhrul Ulum, Mokhamad Muhammad Fatah Wiyatna Muhammad Syahid Panji Pangestu Mushawir, Andi Novi Mayasari Nurcholidah Solihati Nurcholidah Solihati Nurkamilah, Ghina Oloan Parlindungan Pangestu, Muhamad Syahid Panji Pangestu, Muhammad Syahid Panji Primiani Edianingsih Primiani Edianingsih Putri, Verlia Dwi R Priyanto R. Priyanto R.R Noor Raden Febrianto Christi Rahmat Hidayat Rangga Setiawan Ridlo, Muhammad Rosyid Riki Akbar Rosidin Rini Widyastuti Roesillah, Diar Romi Zamhir Islami Ronny Rahman Noor Rudi Priyanto Sari Suryanah Savitri Novelina Septaria Jodiansyah Sikin Sikin Siti Darodjah Siti Darodjah Rasad Siti Darodjah Rasad Siti Darodjah Rasad, Siti Siti Darodjah, Siti Sri Wahyuni Siswanti Sulastri, Erni Supraptono Supraptono Syifa Khairunnisa Toha, Toha Wendry Setiyadi Putranto Weni Kurniati Winangun, Kikin Yurleni Yurleni