Ovulatory Follicular Dynamics After Estrus Synchronization Using Prostaglandin F2a in Dairy Cows

The study aimed to follow development of ovulatory follicular dynamics as well as plasma progesterone profile after estrus synchronization using PGF2 and GnRH. A total of 15 non-pregnant dairy cows, 4-5 years of age, healthy and reproductively sound were used in the present study. Treatment 1, given intramuscular injection of PGF2 25 mg (PGF2), treatment 2 PGF2 25 mg and GnRH 250 g 2 days later (PGF2-GnRH), and treatment 3 with GnRH 250 g (7 days prior to injection of PGF2), PGF2 25 mg and GnRH 250 g (2 days after injection of PGF2) (GnRH-PGF2a-GnRH) (the Ovsynch method). Transrectal ultrasonographic examination using real time, B-mode, with 7.5 MHz tranducer was performed everyday for 12 days to follow ovulatory follicular and luteal dynamics. Blood plasma was taken every day for progesterone determination using EIA technique. Data of follicular, luteal development and progesterone levels were tested using analysis of variance and correlation analysis. The animals showed estrus within 70.70 + 01.90 hours following PGF2 injection. Prostaglandin F2 induced corpus luteum regression, decreased in progesterone plasma levels, followed by ovulatory follicular development and eventually underwent ovulation. Administration of first GnRH increased corpus luteum size, enhanced its regression and decreased plasma progesterone levels, while the second administration induce better ovulatory follicular development. Rate of the corpus luteum regression, progesterone decrease and ovulatory follicular development following PGF2 injection for respective treatments 1, 2 and 3 were 2.53 + 0.24a, 2.73 + 0.36a and 3.53 + 0.28b mm/day; 1.39 + 0.14a, 1.35 + 0.18a dan 1.57 + 0.12b ng/ml/day; and 1.33 + 0.15a, 1.63 + 0.19b and 1.67 + 0.23b mm/day, respectively (P < 0.05). It can be concluded that PGF2 induced corpus luteum regression, decreased in progesterone plasma levels and ovulatory follicular development. Addition of GnRH increased corpus luteum size and plasma progesterone levels, after PGF2 injection corpus luteum regression and progesterone decrease became more prominent, while ovulatory folliculkar development occurred much better.

Perkembangan Embrio Dan Penentuan Jenis Kelamin DOC (Day-Old Chicken) Ayam Jawa Super

Super Javanese chicken is the result of a cross breeding between male domestic chicken and female layer chicken. . There has not been much research aboutSuper Javanese chicken embryonic development. This study attempts to provide information about embryonic development and sexing on Super Javanese chicken. This study used Super Javanese chicken fertile eggs from Java Farm, Maguwoharjo, Depok, Sleman. These eggs were incubated at temperature of 37o-38oC. Samples were observed with Neutral Red and Hematoxilin Eosine (HE) staining. The measurement of the Super Javanese chicken embryo were about length of the third finger, beak, and the length of the embryo's body. This observation obtained embryonic development of the super Javanese chicken spesifically. This concluded that Super Javanese chicken as a first generation from cross breeding has slower growth in embryonic developmen

Edukasi Pentingnya Manajemen Kesehatan Reproduksi Ternak Potong dan Penyerahan Bantuan Sembako Covid-19 di Kelompok Ternak Sapi Potong “Kalimasodo”, Karangdukuh, Jogonalan, Klaten, Jawa Tengah

Program pengabdian ini ditujukan untuk memfasilitasi peternak kelompok ternak sapi potong “Kalimasodo” untuk meningkatkan tingkat reproduksi ternak sapi potongnya. Para peternak sapi potong di kelompok ternak “Kalimasodo” tingkat reproduksi dari ternak potong dari kelompok ternak “Kalimasodo” sangatlah rendah, hal ini disebabkan banyaknya anakan sapi yang mati sesaat setelah dilahirkan indukannya. Program pengabdian ini dilakukan untuk meningkatkan tingkat reproduksi dari ternak para peternak di kelompok ternak “Kalimasodo”. Usaha peningkatan tersebut dilakukan dengan mengadakan edukasi, diskusi tentang pentingnya manajemen kesehatan reproduksi ternak potong dan praktek langsung kelapangan terkait peningkatan performa ternak dan deteksi dini kebuntingan pada ternak. Tahapan pelaksaanaan kegiatan meliputi observasi awal (16 November 2020), edukasi (23 November 2020) dan Praktek Langsung (24 November 2020). Walaupun jumlah anggota peternak tidak maksimal dikumpulkan untuk edukasi dan praktek dikarenakan mengikuti protokol Covid-19, namun antusias dan respon positif dari para peternak menghasilkan berjalannya dengan baik program pengabdian ini