Judul: Karakteristik morfologi, suara dan genetik burung derkuku(Streptopelia chinensis), puter(Streptopelia risoria) dan silangannya
Abstrak: Penelitian ini bertujuan menelaah karakteristik morfologi kualitatif dan kuantitatif, termasuk suara dan kegenetikaan burung derkuku (Streptopelia chinensis), puter (Streptopelia risoria) dan silangannya. Hasilnya akan mendukung kesuksesan program persilangan kedua jenis burung ini. Digunakan burung dewasa sebanyak 46 ekor terdiri dari 17 ekor burung derkuku, 21 ekor burung puter dan delapan ekor silangan (F1). Karakteristik morfologi burung derkuku, puter, dan silangan (FI) antara lain sifat-sifat kualitatif dan kuantitatif melalui pengamatan ciri-ciri khusus dan pengukuran terhadap bagian tubuh burung-burung ini. Karakteristik suara diperoleh dengan perekaman menggunakan Digital Voice Recorder. Selanjutnya suara dianalisis dengan menggunakan program komputer Voice Editor 3 dan Cool Edit Pro untuk mendapatkan frekuensi, jumlah element syllable, durasi suara, durasi antara, tempo dan amplitudo suara. Untuk mengetahui karakteristik genetik, dilakukan dengan menelaah pola pita protein darah berdasarkan hasil analisis protein darah melalui teknik elektroforesis metode gel poliakrilamida model vertikal...
Keyword: 

Judul: Pola Pewarisan Karakter Suara Kicauan Pada Burung Perkutut
Abstrak: Turtledove (Geopelia striata) is a singing birds that has a better melodious voice. The inheritance of this character has not been determined, so that research on the voice inheritance is important. This study was aimed to characterize the voice patterns turtledove. Materials consisted of 12 pairs of parents and their progenies. Twelve of their turtledove was ranked based on their sound quality. The parameters observed included voice patterns, the presence of elements of sound, the type of sound, harmonious sound (frequency and level of sound intensity) and duration of the total sound. Voice analysis was done by using computer software Cool Edit Pro version 2.1. Sound visualization was displayed in waveform shape. Sound intensity level was determined using the formula TI = 10 log I/I0, with the value I0 at 10-12 W/m2. Based on the inheritance analysis sire voices is a better chance in herediting of the voice and the number of beats sound of the middle voice. Dam plays an role in giving voice rhythm modification and sound tip inheritance. Based on the sound analysis, sound quality the voice rank from the highest to the lowest were: ♂AK, ♂ FQ, ♂HHa, ♂ ISS, ♂HRR, ♂ BL, ♂CM, ♂ EQ, ♂GQ, ♂DO, ♂DN, and ♂DP. The frequency value and the highest intensity level displayed by AK turtledove were 929.49 Hz and 91.5 dB, whereas the lowest value displayed by ♂DP were 633.59 Hz, and 67.83 dB. The best rhythm of the turtledove indicated by high frequency with a stable pattern, harmonious the intonation, as well as clear basic voice.
Keyword: 

Judul: In Vitro Release of Ibuprofen from Microcapsules Coated Polyblend of Poly(lactic acid) and Poly(ε-caprolactone)
Abstrak: Ibuprofen is an anti-inflammatory drug that has a short biological half-life and imposes adverse gastrointestinal reaction. Microencapsulation could be used to minimize its disadvantages. In this experiment, microencapsulation of ibuprofen was done by emulsification method. Coating material which was used were polyblend of poly(lactic acid) and poly(ε-caprolactone) which are biodegradable and biocompatible. Polyvinylalcohol was used as an emulsifier at concentrations of 1.5%. The microencapsulation was carried out with various quantities of ibuprofen. The increase in quantities of ibuprofen would improve encapsulation efficiency. Encapsulation of ibuprofen showed an efficiency of more than 71% with the highest score of 84.13% in microcapsule with ratio of polyblend-ibuprofen 5:1.5. The dissolution test results in basic medium showed that the encapsulation efficiencies affected ibuprofen release from the microcapsule. Microcapsules with the higest encapsulation efficiency released ibuprofen ranged from 26.71 to 28.78% for 6 hours. Kinetic of ibuprofen release followed first order kinetic model. The microcapsules particle sizes ranged from 38 to 250 μm.
Keyword: