Judul: Beberapa determinan egg drop syndrome 1976
Abstrak: Egg Drop Syndrome 1976 merupakan penyakit unggas yang baru dikenal. Penyakit ini banyak menimbulkan kerugian ekonomi karena mengakibatkan penurunan produksi telur, keabnormalan bentuk telur, dinding telur tipis dan berbagai perubahan lain pada telur. Gejala klinik penyakit ini tidak jelas seperti halnya penyakit adenovirus yang lain (inapparent disease). Kejadian ini cukup menarik untuk dikaji dengan jalan berusa ha memahami patogenese penyakit ini. Ada beberapa faktor penentu yang menunjang keberhasilan infeksi dan eksistensi virus ini sebagai parasit. Faktor-faktor ini akan diungkapkan dalam salah satu bab pada tulisan ini. Penulis mencoba mengutip pendapat beberapa ahli yang mengemukakan pendapatnya tentang patogenese penyakit ini, meskipun di sadari masih banyak hal yang belum terungkap tentang proses infeksi penyakit ini terutama infeksi yang terjadi secara invivo mengingat virus ini bersifat latent. Untuk memudahkan pengamatan banyak penelitian dilakukan secara invitro dengan maksud agar lingkungan dapat dikendalikan (alteration of environment), sehingga gejala sitopatik dapat diamati.
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Judul: Dianosa Dan Penanggulangan Penyakit Avian Encephalomyelitis
Abstrak: Avian Encephelomyelitis adalah suatu penyakit yang disebabkan oleh enterivirus dari golongan picorna, menyerang alam ayam mulai saat menetas sampai umur tiga minggu denga tanda klinik berupa tremor pada leher dak kepala, parelise, ataxia, dan inkoordiansi; sehingga dikenal pula dengan nama Penyakit Tremor Epidemik. Penyakit yang timbul erat hubungannya dengan usaha pemerintah untuk meningkatkan produksi peternakan menuju swasembada protein hewani pada Pelita IV, mengingat tingkat kematian penyakit Avian Encephalomyelitis bisa mencapai 50 persen pada anak ayam serta turunnya produksi telur yang dihasilkan pada ayam dewasa.
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Judul: Pemanfaatan Spent Bleaching Earth dari Proses Pemucatan CPO sebagai Bahan Baku Briket
Abstrak: Refining process of crude palm oil in refinery which involves bleaching generates plenty of spent bleaching earth. The spent bleaching earth serves as byproduct, which still contains 20-30% w/w of crude palm oil. The research formulated spent bleaching earth and charcoal of oil palm shell as the briquette materials. Charcoal of oil palm shell was choosen because both of them are waste from processing the oil palm. In addition, charcoal of oil palm shell has the high caloric value, so its suitable as the added material for production a briquette. There were two objectives in this research. The main objective was to study the utilization of spent bleaching earth from crude palm oil bleaching process as briquette material. The spesific objective was to study the effect of combination of glue consentration and charcoal of oil palm shell concentration toward the quality of briquette. This research utilized completely randomized factorial design with two factors, i.e. glue concentration factor and charcoal of oil palm shell concentration factor. The glue concentration factor were varied at 2% (A1), 3% (A2), and 4% (A3). The concentration of charcoal of oil palm shell were varied at 25% (B1), 50% (B2), and 75% (B3). The variance analyses showed that the increase of glue consentration affected significantly and increased the volatile matter content but decreased fixed carbon content of briquette. The increase of charcoal oil palm shell concentration affected significantly and increased the moisture content and crushing strength but decreased the volatile matter content and ash content. Furthermore, the interaction of two factors affected significantly the moisture content of briquette. Based on the characteristic of the spent bleaching earth sample, it was found that spent bleaching earth contained 26,325% w/w of residual oil, moisture content 3,727% w/w, volatile matter 32,230% w/w, ash content 68,416% w/w, fixed carbon content 0,354% w/w, and caloric value 6796 cal/gram. The best treatment combination of all the experimental units was briquette A1B3 (glue concentration 2% and charcoal of oil palm shell concentration 75%). This treatment resulted the lowest volatile matter content about 18,021%, the lowest ash content 20,100%, the lowest fixed carbon content 61,879%, and the caloric value about 6528 cal/gram. This briquette could boil three liters of water in 75,26
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