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: Persentase Organ Pencernaan Broiler yang Diberi Pakan Mengandung Bungkil Inti Sawit dengan atau tanpa Penyaringan
Abstrak: The objective of current study was to investigate the effect of feeding diet containing sieved or unsieved palm kernel meal on the development of the digestive organs in 35-day old broilers. Two hundreds day old chicken strain Hubbard were allocated to four dietary treatments i.e : P1 = treatment diet containing unsieved palm kernel meal; P2 = treatment diet containing sieved palm kernel meal; P3 = treatment diet containing sieved palm kernel meal plus shell of Palm Kernel Meal (PKM) as grit; P4 = treatment diet containing sieved palm kernel meal plus commercial grit in completely randomized design. Feed and water were given ad libitum. Variables measured were weight percentage of proventriculus, gizzard, small intestine, caeca, colon, relative length of small intestine, colon and caeca. The result showed that weight percentage of proventriculus, gizzard, small intestine, and colon were not affected by the treatments. Relative length of jejunum, colon, and caeca were also not affected by the treatments. It is concluded that sieving palm kernel meal did not affect weight percentage and relative length of digestive organs of broiler chicken.
Keyword: sieving, shell, palm kernel meal, digestive organs, broiler chickens

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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