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: Organic Mineral Mixed Supplementation In The Feed Of Isa Brown Laying Hens On The Performance And Quality Of Eggs Aged 68-75 Weeks
Abstrak: Penelitian ini dilakukan untuk mengevaluasi suplementasi campuran mineral organik dalam pakan terhadap performa dan kualitas telur ayam Isa brown umur 68-75 minggu. Penelitian ini menggunakan 2033 ayam petelur strain Isa brown berumur 68 minggu sampai 75 minggu. Dalam pengujian kualitas, 24 sampel digunakan. Penelitian ini menggunakan 2 perlakuan dan 12 ulangan. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) yaitu: T0 (pakan kontrol), dan T1 (pakan kontrol + suplementasi campuran mineral organik). Variabel yang diamati adalah kualitas telur (warna kerabang, kekuatan kerabang, ketebalan kerabang, dan haugh unit) dan performa yang diamati (konsumsi pakan, produksi telur, bobot telur, konversi pakan, dan produksi massa telur). Data dianalisis menggunakan uji paired sample T-test dan uji wilcoxon dengan taraf 5%. Hasil penelitian menunjukkan bahwa suplemen campuran mineral organik berpengaruh nyata (P<0,05) terhadap produksi telur ayam, konversi pakan, produksi massa telur, warna cangkang, ketebalan cangkang, dan kekuatan cangkang, tetapi tidak terdapat perbedaan nyata (P>0,05) terhadap bobot telur, konsumsi pakan, dan haugh unit. Dapat disimpulkan bahwa penggunaan suplementasi campuran mineral organik dapat memberikan hasil yang baik pada performa dan kualitas telur ayam sehingga dapat diaplikasikan., This study was conducted to evaluate organic mineral mixed suplementation In the feed of Isa brown laying hens on the performance and quality of eggs aged 68-75 Weeks. This study used 2033 laying hens strain Isa brown aged 68 weeks to 75 weeks. In quality testing, 24 samples were used. This study used 2 treatments and 12 replications. The method used was Completely Randomized Design (CRD) were: T0 (control feed), and T1 (control feed + organic mineral mixture supplementation). The observed variables were egg quality (shell color, shell strength, shell thickness, and haugh unit) and observed performance (feed consumption, egg production, egg weight, feed conversion, and egg mass production). Data were analyzed using paired sample T-test and wilcoxon test with a level of 5%.The results showed that organic mineral mix supplement had a significant effect (P<0,05) on hen day production, feed conversion, egg mass production, shell color, shell thickness, and shell strength, but there was no significant difference (P>0,05) on feed consumption, egg weight, haugh unit. The results of this study can be concluded that the use of organic mineral mixture supplementation can provide good results on the performance and quality of chicken eggs so that it can be applied.
Keyword: egg quality, laying hen (Isa brown), organic mineral, performance

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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