Judul: Persentase Organ Dalam Ayam Broiler dengan Pakan Mengandung Tepung Inti Sawit yang Ditambahkan Pollard atau Dedak
Abstrak: The use of palm kernel in the diet should be limited, because it contains high crude fiber and crude fat and low protein. The objective of this study was to determine the effect of feeding diets containing palm kernel powder added pollard or rice bran on percentage of internal organs in broiler chickens. The treatments were as follow : P1: control, P2: feed A (feed containing palm kernel powder added pollard ), P3: feed B (feed containing palm kernel powder added rice bran). The results showed that percentage of weight of the liver and bile were not significantly affected by the treatment. However the treatments significantly (P<0.01) affected the percentage of weights and relative lengths digestive organs where the percentage of weights were higher, and relative lengths were longer for treatments compared with that of control, while P2 and P3 results are comparable, except pancreas and colon. It is concluded that feeding diets containing palm kernel powder added pollard or rice bran produces a comparable percentage of internal organs in broiler chicken, but not to the pancreas and colon where feed containing palm kernel powder added pollard higher than feed containing palm kernel powder added rice bran.
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Judul: Performa Ayam Broiler yang Diberi Pakan Mengandung Tepung Inti Sawit-Pollard atau Tepung Inti Sawit-Dedak
Abstrak: The objective of this experiment was to determine the effect of feeding complete diet containing palm kernel powder that added pollard or rice bran on broiler performances. Experiment used 180 day old chicks (DOC) of CP 707 and reared for 28 days. The experiment used completely randomized design with 3 treatments and 6 replications consisting of 10 broilers in each replication. The treatments were: P1= feed control (100% commercial feed) without palm kernel powder, P2= Feed A (feed containing palm kernel powder + pollard), P3= Feed B (feed containing palm kernel powder + rice bran). The diet and water were given ad libitum. The results indicated that feeding palm kernel powder in broiler diet that added with pollard or rice bran decreased (P<0.01) feed consumption, final body weight, body weight gain and increased feed conversion rate. There were not significant differences between P2 and P3 treatments in terms of its effect on broiler chickens performance. The quality of feed containing palm kernel powder-pollard or palm kernel powder-rice bran could not substitute the commercial feed.
Keyword: rice bran, pollard, palm kernel powder, broiler performances

Judul: Bifurkasi Hopf pada Model Siklus Bisnis Kaldor Kalecki tanpa dan dengan Waktu Tunda
Abstrak: Business cycle model is one of dynamical system models in economic. One of the business cycles model is Kaldor-Kalecki model. Kaldor-Kalecki business cycle model that is written in delayed defferential equations, is a business cycle model that involves gross product and capital stock of a company. In this paper Kaldor-Kalecki business cycle model is analyzed using both nondelay and delay in time of capital stock. By Taylor expansion for the time delayed model, an analysis of stability around the fixed points has been done. Furthermore, by using Hopf bifurcation theorem, it can be shown that there exists periodic orbits and limit cycle. In the nondelayed model, changing the parameter of goods market could lead to the occurrence of Hopf bifurcation and the existence of limit cycle. Similarly, for the delayed model, it has been shown that changing the time delay parameter may result in the occurrence of Hopf bifurcation and limit cycle.
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