Judul: Kualitas fisik dan organoleptik daging ayam broiler yang ransumnya diberi penambahan minyak ikan yang mengandung omega 3
Abstrak: Meat quality of broiler chicken is generally determined with chemical, physical and organoleptic quality. Omega-3 fatty acids obtained from fish oil waste as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) is a poly unsaturated fatty acid source that has many benefit for human. The objective of this reseach was to determine the effect of fish oil addition containing omega-3 in poultry feed on the physical and organoleptic quality of broiler chicken meat. The different levels of fish oil (0; 2,5; 5 and 7,5%) were added in poultry feed was given to the chicken until 2, 3 and 4 weeks. The experiment was set up in a completely randomized design with 4x3 factorial pattern. The observed parameters were pH, water holding capacity (WHC), tenderness and organoleptic test. The physical data were analyzed descriptively and organoleptic was analyzed by ANOVA and Duncan's Multiple Range Test. The result showed that the treated breast meat has lower for WHC and more tender than control, but higher pH. The thight meat treated showed that a higher pH and water holding capacity but less tender than control. Organolepticly, the addition of fish oil containing omega-3 fatty acids did not have significantly affect the aroma, colour and texture of meat while taste was affected (P<0,05). Long of feeding omega-3 (2 , 3 and 4 weeks) have significantly affect the meat texture. Keywords: Chicken Meat, Fish Oil, Omega-3, Physical Quality, Organoleptic Quality.
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Judul: Pengaruh Penggunaan Minyak Ikan Lemuru dan Minyak Sawit pada Taraf Berbeda terhadap Kadar Kolesterol dan Malondialdehid (MDA) Ayam Broiler
Abstrak: Penelitian bertujuan menganalisis pengaruh penggunaan minyak ikan dan sawit dalam pakan terhadap kadar kolesterol dan malondialdehid (MDA) daging broiler. Penelitian menggunakan 200 ekor ayam broiler yang dipelihara selama 5 minggu dan dibagi ke dalam 20 petak kandang. Pola penelitian menggunakan rancangan acak lengkap (RAL) dengan 4 perlakuan dan 5 ulangan. Taraf perlakuan ransum adalah P0 (minyak ikan 0% dan minyak sawit 3%), P1 (minyak ikan 1% dan minyak sawit 2%), P2 (minyak ikan 2% dan minyak sawit 1%) dan P3 (minyak ikan 3% dan minyak sawit 0%). Peubah yang diamati adalah kadar kolesterol dan malondialdehid daging dada. Hasil penelitian menunjukkan penggunaan minyak ikan 2% dan minyak sawit 1% (P2) menghasilkan kadar kolesterol daging dada paling rendah. Kadar MDA berkisar 0,647 ± 0,044 mg kg-1 sampai dengan 0,726 ± 0,064 mg kg-1. Simpulan hasil penelitian menunjukkan bahwa penggunaan 2% minyak ikan dan 1% minyak sawit (P2) dalam ransum menurunkan kadar kolesterol 38,85% dari P0 dan keempat perlakuan tidak berpengaruh terhadap kadar MDA ayam broiler., The research aimed to analyze utilization of fish oil and palm oil in feed on broiler meat cholesterol and malondialdehyde (MDA) content. Research used 200 broiler chickens reared for 5 weeks and divided to 20 units of experiments. Research design using complete random design with 4 treatments and 5 replications. Levels of ration experiments were P0 (palm oil 3% and fish oil 0%), P1 (palm oil 2% and fish oil 1%), P2 (palm oil 1% and fish oil 2%) and P3 (palm oil 0% and fish oil 3%). Observed variables were breast meat cholesterol and malondialdehyde content. Results showed that utilization of fish oil 2% and palm oil 1% (P2) had the lowest breast meat cholesterols content. The MDA content ranges around 0.647 ± 0.044 mg kg-1 to 0.726 ± 0.064 mg kg-1. In conclusion the utilization of 2% fish oil and 1% of palm oil (P2) on feed decreases cholesterol content 38,85% than P0 and all of the treatments have no effect against broiler MDA content.
Keyword: broiler, cholesterol, fish oil, malondialdehyde, palm oil

Judul: : Persamaan Tunggal sebagai Representasi Kurva Komposit
Abstrak: A mathematical method is introduced to represent a composite curve based on an extension of analytic geometry. The representation is given either with a single equation or with two equations, in the case of parametric representation. This method permits the representation of composite curves in similar manner to the conventional representation of non-composite curves. Some mathematical tools, including Heaviside unit step function and periodizer function, are used in the establishment of a single equation. In this paper, regular equations of regular and irregular polygon, as well as composite curves of two dimensions, are implemented using a computer algebraic system, Mathematica.
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