Judul: Pengaruh penambahan ragi bir dalam pakan terhadap daya tahan tubuh ikan lele Clarias sp dari infeksi bakteri Aeromonas hydrophila
Abstrak: Motile aeromonad septicaemia caused by Aeromonas hydrophila, induced serious epidemics disease in freshwater fish, one of them is Clarias sp. This research was purposed to evaluate the feeding period of brewer's yeast Saccharomyces cerevisae on the resistance of Clarias sp against A. hydrophila infection. Clarias sp with an initial body weight of 5.33±0.5 g were cultured for 30 days in 50 x 40 x 35 cm aquarium. During rearing period, fish were fed on the diet contained either 0% or 3% of S. cerevisae. On day10, fishin the groups of K+10 (feeding with 0% S. cerevisae) and RB10 (feeding with 3% S. cerevisae), were infected with A. hydrophila; while those fish in the groups of K+20 and RB20 were infected on day 20. Fish in the group of K- were not infected with A. hydrophila. The results showed that on day-30, fish in the groups of K-, RB10, and RB20 had significantly higher survival than fish in K+10 and K+20. The survival of fish in K-, RB10, and RB20 were 100%, 76.7%, and 73.3%, respectively; while those in K+10 and K+20 were only 26,7% and 33.3%, respectively. Therefore, feeding on S. cerevisae in the period of ten days effectively reduce the mortality of fish due to the infection of A.hydrophila., Penyakit motile aeromonad septicaemia yang disebabkan oleh Aeromnas hydrophila menyebabkan wabah penyakit serius pada ikan air tawar, salah satunya ikan lele dumbo Clarias sp. Penelitian ini bertujuan untuk mengevaluasi efektivitas lama periode pemberian ragi bir Saccharomyces cerevisae sebagai pakan ikan yang dapat meningkatkan daya tahan tubuh ikan lele dumbo. terhadap infeksi bakteri A. hydrophila. Ikan lele ukuran 5,33±0,5 g dipelihara dalam akuarium ukuran 50 x 40 x 35 cm dengan padat tebar 10 ekor/akuarium, selama 30 hari. Selama masa budidaya, ikan diberi 3% ragi bir dalam pakan dan pakan tanpa ragi bir. Perlakuan yang diujikan adalah lama pemberian pakan yang berbeda sebelum ikan diinfeksi bakteri. Perlakuan tersebut adalah: RB10 (pakan formulasi dengan 3% ragi bir, ikan diinfeksi A. hydrophila pada hari ke-10); RB20 (pakan formulasi dengan 3% ragi bir, ikan diinfeksi A. hydrophila pada hari ke-20); K+10 (pakan formulasi tanpa ragi bir, ikan diinfeksi A. hydrophila pada hari ke-10); K+20 (pakan formulasi tanpa ragi bir; serta ikan diinfeksi A. hydrophila pada hari ke-20) dan perlakuan kontrol, yaitu K- (pakan formulasi tanpa ragi bir serta tanpa diinfeksi A. hydrophila). Hasil penelitian menunjukkan bahwa pada hari ke-30 masa budidaya, nilai kelangsungan hidup yang tinggi diperoleh pada perlakuan K-, RB10, dan RB 20, yakni masing-masing 100%, 76,7%, dan 73,3%. Sedangkan kelangsungan hidup ikan pada perlakuan K+10 dan K+20, masing-masing 26,7% dan 33,3%. Dengan demikian, pemberian ragi bir selama 10 hari dapat menekan kematian ikan lele akibat serangan bakteri A. hydrophila.
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Judul: Evaluasi Penambahan Ragi Limbah Produksi Bir dalam Pakan terhadap Kinerja Pertumbuhan dan Daya Tahan Ikan Lele Clarias sp. akibat Infeksi Aeromonas hydrophila
Abstrak: The purpose of the study was to test on field-scale the addition of brewer’s yeast Saccharomyces cerevisiae which was considered as brewery by-product in feed on growth performance and immunity of catfish against the infection of Aeromonas hydrophila. Catfish weighed 2.09 ± 0.01 g with average length of 6.42 ± 0.07 cm were stocked in tarpaulin ponds 200 x 200 x 80 cm3 as much as 1.000 fish/pond with 2 treatments and 3 replications. Fish were fed commercial feed without brewer’s yeast addition (K), and brewer’s yeast added feed (RB) for 30 days and the growth response were observed. Fish were challenged in aquariums 60 x 30 x 25 cm3 using 3 treatments and 3 replications which consisted of K- (PBS injected fish), K+ (A. hydrophila injected fish), and RB (A. hydrophila injected fish). After injection, fish were fed K feed for 10 days and the mortality rate were observed. The results showed that feeding with RB feed increased the growth rate of the fish and decreased the feed conversion ratio. Cost analysis showed that RB treatment could decrease feed production cost toRp 33917 from Rp 39418 (control). Fish immunity were increased with increasing total blood leukocytes, suppressed A. hydrophila infection indicated by lighter clinical symptoms showed, and suppressed mortality rate (71.67%) compared to K+ (95.00%).
Keyword: Saccharomyces cerevisiae., growth, endurance, catfish, brewer's yeast, Aeromonas hydrophila

Judul: Kajian Konsep Desain Lanskap Jalan Kolonial Kota Bogor.
Abstrak: Bogor City is one of the historic sites in the European colonial era in Indonesia. One of a heritage form in that era is the landscape of colonial. The form of colonial landscape also reflected in the design of street landscape in Bogor City. Study on Design Concept of Colonial Streetscape at Bogor City aims to identify the component of street landscape whose colonial character, exploring the design concept of colonial street landscape, and composing the design concept of street landscape that having colonial character in Bogor. This research has obtained through descriptive analysis by field observation and tracing the information of history. Generally, three main components of colonial street landscape design those are the main elements of street, complementary elements, and colonial building. Complementary elements that characterizing the colonial has the feel of a classic Victorian, gothic and use of industrial materials. The third component of colonial street lanscape is a building that reflects the Dutch colonial era and The important part of it is the facade of the building.
Keyword: colonial concept, street landscape design