Judul: Pregnancy Check And Fetal Development On Indonesian Domestic Rabbits By Means Of Ultrasonography
Abstrak: This research is carried out to detect the earliest day of conception in Indonesian domestic rabbits by analyzing embryonic vesicle, body diameter and head diameter. The animals used for this research were six pregnant rabbits weighed between 1.75 – 3.90 kg. SonoDop ultrasound system with curved and linear transducers, ultrasound scanner (S-A5V) and Landwind Medical Mirror5 were used. The does were examined on day 5 after mating and every 2 to 3 days until they gave birth. On day 5, the embryonic vesicle size is 10.25 ± 0.96 mm and on day 10, the size is 22.50 ± 0.71 mm. The equation for it is x = y + 0.2/0.245. The average body diameter on day 18, 21, 24, and 29 were 0.96 ± 0.049 cm, 1.17 ± 0.025 cm, 1.49 ± 0.049 cm and 1.56 ± 0.026 cm respectively. The equation is x = y - 0.0021/0.0562. The average head diameter on day 18, 21, 24, and 29 were 0.79 ± 0.11 cm, 1.02 ± 0.08 cm, 1.22 ± 0.08 cm and 1.59 ± 0.02 cm respectively. The equation is x = y + 0.5073/0.0723. All x above is number of days. The earliest day of conception was determined on day 5 in Indonesian domestic rabbits.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, Domestic rabbits, Rabbits, Ultrasonography, Pregnancy

Judul: Comparative Analysis of Pregnancy Diagnosis in Garut Ewe Using Transrectal and Transabdominal Ultrasonography Imaging
Abstrak: Early and accurate pregnancy diagnosis is crucial for effective sheep production. This study compared transrectal (TRUS) and transabdominal ultrasound (TAUS) for pregnancy diagnosis in 80 Garut ewes, that underwent both ultrasound methods. Overall pregnancy rate was 83.75%, distributed across early (28.4%), mid (35.8%), and late (35.8%) trimesters. Wilcoxon signed-rank test and Kappa statistic were used to assess fetal structure visibility and method agreement. Overall, TRUS achieved 100% success rates throughout all stages, while TAUS showed 10.5% rates in early pregnancy, increasing to 83.3% in mid and 95.8% in late stages. Statistical analysis (p=0.000) showed TAUS was ineffective in early stage, but there was no significant difference (p>0.05) in mid and late stages, indicating both methods could be used. Agreement between TRUS and TAUS for fetal parameters was low to moderate, with no strong agreement, indicating variability in diagnosis. Further studies with larger sample sizes are needed for definitive conclusions.
Keyword: pregnancy diagnosis, sheep, transabdominal, transrectal, USG

Judul: Sintesis Dan Karakterisasi Komposit Tio2/Nanopartikel Karbon (C-Dot) Dan Aplikasinya Sebagai Fotokatalis Untuk Degradasi Perkloroetilena.
Abstrak: Komposit TiO2/C-dot disintesis dengan metoda sol-gel dan telah diselidiki sebagai katalis untuk degradasi fotokatalitik senyawa pencemar perkloroetilena (PCE). Sifat fotoluminesens ditunjukkan dari analisis visual menggunakan lampu UV (365 nm), dan produk hasil sintesis dikarakterisasi menggunakan difraksi sinar-X (XRD), Fourier Transform Infrared (FTIR), spektrofotometer fluoresens, Scanning Electron Mocroscope (SEM) dan spektrofotometer UV-Vis. Hasil analisis XRD dan FTIR menunjukkan bahwa C-dot terikat secara fisik dalam TiO2. C-dot tidak kehilangan sifat fluoresensnya walaupun dikomposit dengan TiO2. C-dot dapat menurunkan nilai energi celah pita optik TiO2 dalam komposit TiO2/C-dot sehingga memperlebar jangkauan serapan TiO2 dan meningkatkan aktivitas fotolatalitik TiO2. Degradasi PCE 0.1% (v/v) dalam fasa cair telah diselidiki di bawah sinar matahari selama 2 jam. Efektivitas fotodegradasi ditentukan menggunakan kromatografi gas. Komposit TiO2/C-dot 2.5% (b/b) berhasil mendegradasi PCE di bawah sinar matahari dan efektivitas fotodegradasi mencapai 89.45%.
Keyword: Komposit TiO2/C-dot, fotokatalitik, degradasi, perkloroetilena.