Judul: Evaluasi Pemalsuan Dedak Padi dengan Penambahan Serbuk Gergaji Menggunakan Uji Fisik
Abstrak: The purpose of this study was to evaluate the changes in the physical properties of rice bran as a result of the addition of sawdust. Sawdust mixed with rice bran by different levels of 0%, 5%, 10%, 15% and 20%. The design used was CRD (completely randomized design) with 5 treatments and 3 replications. Data analysis was performed by analysis of variance (ANOVA) followed by orthogonal contrast test. The addition of sawdust in the treatment in affecting the physical properties of rice bran. Value of the physical properties of rice bran were specific gravity (kg l-1) amounted to 1.33, 1.31, 1.29, 1.27 and 1.24 (r = 98.59%), bulk density (g l-1) amounted to 275.27, 267.38, 259.55, 251.26 and 243.13 (r = 97.97%), compacted bulk density (g l-1) amounted to 432.30, 420.19, 405.08, 393.29 and 385.61 (r = 98.64% ), angle of repose (°) were 39.90, 39.68, 39.35, 39.15 and 38.95 (r = 98.28%). All of physical properties can be used to detect forgeries, but based on the results of the correlation, compacted bulk density had the highest closeness of the relationship. This results showed that compacted bulk density was the best indicator to detect forgeries.
Keyword: sawdust, rice bran, physical properties

Judul: Evaluasi Pemalsuan Dedak Padi dengan Penambahan Tepung Tongkol Jagung Menggunakan Uji Fisik
Abstrak: The objective of this experiment was to evaluate addition of forger by measuring physical properties of materials with addition of corn corb flour. Corn corb mixed with rice bran by different levels 0%, 5%, 10%, 15%, and 20%. This design used complete random design (CRD) with 5 treatments and 3 replications. The data analyzed by ANOVA and if there were differences continued by orthogonal contrast test. The results showed the addition of corn corb flour significantly decreased (P<0.01) specific density (kg l-1) of 1.36, 1.32, 1.26, 1.20, and 1.16 (r = 93%), bulk density (g l-1) of 286.53, 283.02, 275.74, 268.35, and 263.86 (r = 98%), compacted bulk density (g l-1) of 475.44, 463.69, 453.18, 443.14, and 433.53 (r = 99%), angle of repose (o) of 44.40, 43.91, 43.27, 43.15, and 42.70 (r = 93%), and increased particle size (mm) of 1.22, 1.23, 1.23, 1.24, and 1.25 (r = 95.8%). As conclusion, the fifth parameters could be used to detected forgery and based on the correlation, compacted bulk density was the most correct measurement.
Keyword: rice bran, physical characteristic, forgery, corn corb flour

Judul: Infeksi leucocytozzon simondi (Mathis dan Leger, 1910) pada itik
Abstrak: Leucocytozoonosis pada itik adalah penyakit protozoer yang disebabkan oleh parasit darah Leucocytozoon simondi. Protozoa ini ditularkan oleh lalat penghisap darah (Simulium sp.). Di dalam tubuh induk semang antara (vektor) Simulium parasit mengalami tahap gametogoni yang kedua (pembentukan gamet dan pembuahan) dan sporogoni. Pembuahan makrogamet oleh mikrogamet terjadi segera sesudah vektor menghisap darah itik yang mengandung gametosit. Pembuahan menghasilkan zigot yang dapat bergerak (ookinet) yang masuk dinding usus vektor dan kemudian memasuki tahap sporogoni. Tahap sporogoni memerlukan waktu kira-kira 1 minggu (Fallis dan Desser, 1977) untuk menghasilkan sporozoit. Sporozoit bergerak menuju kelenjar ludah vektor, tempat mereka berkumpul. Sporozoit dipindahkan ke dalam tubuh itik pada saat vektor menghisap darah itik. Di dalam tubuh itik, parasit mengalami tahap skizogoni dan tahap gametogoni yang pertama (pembentukan gametosit). Sporozoit memasuki peredaran darah itik dan memasuki sel-sel parenkhim hati membentuk skizon hepatik (Fallis et al., 1974). Setelah 4 6 hari, skizon hepatik dewasa menghasilkan merozoit dan sinsitia. Merozoit dari skizon hepatik memasuki eritrosit dan eritroblas membentuk gametosit bundar, sedangkan sinsitia memasuki sel-sel RES di seluruh tubuh membentuk megaloskizon. Megaloskizon dewasa terbentuk dalam waktu 5 hari di dalam sel-sel itu dan menghasilkan merozoit. Merozoit dari megaloskizon memasuki limfosit dan leukosit lainnya membentuk gametosit memanjang. ...
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