Judul: Effect of The Addition of Palm Kernel Meal Mannan in Rations   to the Performance and Quality of Isa Brown Chicken Eggs
Abstrak: Penelitian ini bertujuan mengevaluasi kualitas mannan bungkil inti sawit dilihat dari aspek performan, IOFC dan kualitas telur ayam Isa Brown yang dipelihara pada lingkungan kandang terbuka dengan suhu 33-35oC selama 7 minggu. Penelitian ini menggunakan 60 ekor ayam petelur strain Isa Brown yang berumur 23-30 minggu dan ditempatkan dikandang baterai. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 3 perlakuan yaitu P0 = Ransum mengandung 0% Mannan, P1 = Ransum basal mengandung 0,25% Mannan, dan P2 = Ransum basal mengandung 0,5% Mannan, masing-masing perlakuan mempunyai 5 ulangan dan masing-masing ulangan terdiri dari 4 ekor ayam petelur. Ayam diberikan pakan 110 gram per ekor per hari. Uji kualitas telur dilakukan pada minggu ke- 5, 6 dan 7. Data dianalisis menggunakan ANOVA dan uji Duncan jika diperoleh hasil yang berbeda nyata. Hasil penelitian menunjukkan bahwa perlakuan tidak nyata mempengaruhi konsumsi pakan, Hen Day production, bobot telur, konversi pakan dan kualitas telur kecuali indeks telur yang semakin meningkat. Dapat disimpulkan bahwa penambahan mannan 0,25%-0,5% dalam ransum belum dapat memperbaiki performan produksi ayam namun dapat meningkatkan indeks telur., This study aimed to evaluate the quality of palm kernel cake mannan from the aspect of performance, IOFC and egg quality of Isa Brown chickens reared in an open cage environment with a temperature of 33-35oC for 7 weeks. This study used 60 laying hens of the Isa Brown line aged 23-30 weeks and placed in a battery cage. This study used a completely randomized design (CRD) with 3 treatments, namely P0 = Ration containing 0% Mannan, P1 = Basal Ration containing 0.25% Mannan, and P2 = Basal Ration containing 0.5% Mannan. The treatment consisted of 5 replications and each replication consisted of 4 laying hens. Chickens are fed 110 grams per head per day. Egg quality testing was carried out at 5, 6, and 7 weeks. The data were analyzed using ANOVA and Duncan's test if significantly different results were obtained. The results showed that the treatment had no significant effect on feed consumption, chicken production, egg weight, feed conversion and egg quality except for an increase in egg index. It can be concluded that the addition of mannan 0.25%-0.5% in the ration has not been able to improve the performance of chicken production but can increase the egg index.
Keyword: egg quality, laying hen, mannan, performance

Judul: Production of Supplementary Wafers with Different Levels of Molasses and the Effect on the Performance of Laying Hens 24-31 Weeks Old
Abstrak: Penelitian ini bertujuan mengevaluasi kualitas fisik wafer suplemen dengan level molases yang berbeda dan mengetahui pengaruhnya terhadap performa ayam Isa Brown yang diberi wafer suplemen. Penelitian ini menggunakan 64 ekor ayam petelur (umur 24-31 minggu). Penelitian dibagi menjadi dua tahap. Tahap 1 adalah pembuatan wafer suplemen dengan level molases yang berbeda. Data diuji dengan ANOVA. Peubah yang diukur adalah aktivitas air (Aw), berat jenis (BJ), kadar air (KA), kelarutan total (KT), dan Wafer Durability Index (WDI). Hasil penelitian menunjukkan bahwa level molases yang berbeda berpengaruh nyata (P<0,05) terhadap BJ, KA, KT dan WDI tetapi tidak berpengaruh nyata (P>0,05) terhadap Aw. Tahap 2 adalah pemberian wafer suplemen pada ayam Isa Brown. Data diuji dengan uji T. Peubah yang diamati adalah konsumsi pakan, konsumsi air minum, Hen Day Production (HDP), bobot telur, massa telur, Feed Conversion Ratio (FCR), dan mortalitas. Pemberian wafer suplemen terbaik tidak berpengaruh nyata (P>0,05) terhadap konsumsi pakan, konsumsi air minum, HDP, bobot telur, massa telur, FCR, dan mortalitas., The research aimed to evaluate the physical quality of supplement wafers with the different levels of molasses and to measure the performance of Isa Brown chickens that given supplement wafer. This study used 64 laying hens (24-31 weeks old). This study was divided into 2 steps. Step 1 was supplement wafer production with different levels of molasses. Data was tested by ANOVA. Parameters measured were water activity (Aw), density, water content (KA), total solubility, and Wafer Durability Index (WDI). The results showed that molasses had a significant effect (P<0.05) on bulk density, water content, total solubility, and WDI but had no significant effect (P>0.05) on Aw. Step 2 was given supplement wafer to Isa Brown chickens. Data was tested by T-test. Parameters measured were feed consumption, drinking water consumption, Hen Day Production (HDP), egg weight, egg mass, Feed Conversion Ratio (FCR), and mortality. Adding the best supplement wafers had no significant effect (P>0.05) on egg weight, egg mass, feed consumption, drinking water consumption, FCR, HDP, and mortality.
Keyword: Ayam Isa Brown, kualitas fisik, performa, wafer suplemen

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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