Judul: Kajian Kualitas Spermatozoa Ikan Tawes (Barbonymus Gonionotus, Bleeker 1849) Jantan Yang Berasal Pada Dua Kolam Budidaya Berbeda
Abstrak: Barbonymus gonionotus (Bleeker 1849) known as silver barb is one of the economically important freshwater fish that are frowned upon by the community as well as Indonesia. This fish had a good nutrition with 27.87 to 28.10% of protein. The important factor in the aquaculture is the availability of larvae which influence by the quality of spermatozoa. The purpose of this research was to examine the quality of silver barb spermatozoa on two different aquaculture environments) through the study of the semen characteristics including macroscopic and microscopic evaluation such as volume, pH, color, consistency, concentration, motility, morphology and morphometric of silver barbfish spermatozoa. A total of 20 fish from Purwasari and Parung were used in this research. The samples analysis was carried out in the laboratory of Reproductive and Rehabilitation Unit (URR), Faculty of Veterinary Medicine, Bogor Agricultural University. The results showed that all parameters characteristic of silver barb spermatozoa from Purwasari and Parung was significanly different (P<0.05) except for the semen color and consistency, pH, diameter spermatozoa head, concentration of spermatozoa as well as the morphology.
Keyword: semen quality, spermatozoa, fish, Silver barb

Judul: Dinamika Kualitas Air Pada Kolam Pemeliharaan Ikan Tengadak (Barbonymus schwanenfeldii Bleeker, 1854)
Abstrak: Tinfoil barb is a freshwater species, which population has been declining because of catch and environmental pollution. An attempt to keep this population is by aquaculture or cultivation. Good water quality was strongly influenced by the optimization of cultivation. This research was aimed to determine the dynamics of water quality and pollution level during cultivation. The research was conducted on nine ponds consisting of three treatments (feeding of 3%, 6%, and 9% of total biomass) with each of three replicates. During the research, the temperature ranged between 22,8 to 26,3 °C; transparancy between 16 to 46 cm; the colours was green to brown; pH between 6,46 to 7,74; DO between 0,7 to 5,29 mg/L; alcalinity between 31,85 to 104,7 mg/L; nitrite between 0 to 0,393mg/L; nitrate between 0,14 to 0,637 mg/L; ammonia between 0,0006 to 0,01 mg/L; ortophosphate between 0 to 0,343 mg/L. Ciapus River water used as an input for the culture had a good pollution level and moderate pollution level. The best water quality was found in feeding of 3% and the best growth rate was found in feeding of 9%.
Keyword: pollution, water quality, tinfoil barb

Judul: Rancang Bangun Arsitektur Penanganan Dini Mualaf pada Aplikasi Hijrah ID dengan Metode UML Development System
Abstrak: Berdasarkan data dari Mualaf Center Indonesia bahwa tren mualaf tiap tahun meningkat dengan persentase sekitar 31,2% selama 4 tahun terakhir. Tantangan dan hambatan dialami mualaf antara lain adanya ancaman atau intimidasi dari keluarga atau kerabat dekat sehingga menyebabkan kondisi psikologis mualaf menjadi terganggu dan menghambat proses belajar agama Islam. Hijrah ID adalah sebuah aplikasi berbasis Android yang memberikan layanan untuk penanganan dini bila hal-hal yang tidak diinginkan terjadi pada mualaf serta pembelajaran mengenai agama Islam. Metode pengembangan aplikasi HIJRAH ID menggunakan UML Development System. Hijrah ID memiliki lima fitur utama di dalamnya, yakni fitur Ta’shil, Konsultasi, Artikel, Jadwal Kajian, dan Panic Button. Hasil dari penelitian ini berupa rancangan prototipe Panic Button. Panic Button merupakan suatu layanan untuk membantu mualaf ketika sedang memerlukan bantuan yang harus ditindak secara cepat tanggap sehingga harapannya mengurangi tindakan yang tidak diinginkan. Panic Button menghubungkan mualaf dengan ustaz berdasarkan posisi saat menekan panic button dan memberikan perizinan oleh ustaz.
Keyword: Android, mualaf, panic button