Judul: Perubahan sifat fisik dan uji akseptabilitas wafer pakan komplit ternak domba dengan lama penyimpanan yang berbeda
Abstrak: Tujuan penelitian ini adalah untuk menguji lama simpan wafer terhadap sifat fisik dan penambahan air untuk meningkatkan akseptabilitas domba ekor tipis. Rancangan yang digunakan pada penelitian ini adalah rancangan acak lengkap (RAL) untuk uji sifat fisik dengan 3 perlakuan dan 3 ulangan dengan R1: penyimpanan 0 minggu, R2: penyimpanan 3 minggu, R3: penyimpanan 6 minggu dan rancangan acak kelompok (RAK) untuk uji akseptabilitas dengan 4 perlakuan dan 3 ulangan dengan bobot badan sebagai kelompok, dengan P1: penyajian wafer tanpa penambahan air, P2: penyajian wafer dengan penambahan air 25% dari berat pakan yang diberikan, P3: penyajian wafer dengan penambahan air 50% dari berat pakan yang diberikan, P4: penyajian wafer dengan penambahan air 75% dari berat pakan yang diberikan. Hasil penelitian ini menunjukkan bahwa lama penyimpanan mempengaruhi (P<0.05) nilai kadar air, aktivitas air, dan daya serap air. Serangan serangga meningkat selama penyimpanan 6 minggu. Penambahan air mempengaruhi (P<0.05) nilai akseptabilitas domba pada lama penyimpanan 3 dan 6 minggu. Berdasarkan hasil penelitian lama penyimpanan 6 minggu dapat meningkatkan kadar air, menurunkan daya serap air wafer pakan komplit dan meningkatkan akseptabilitas domba dengan penambahan air 75%.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Acceptability, Physical characteristic, Vegetable waste, Wafer

Judul: Perubahan Sifat Fisik dan Uji Akseptabilitas Wafer Pakan Komplit Ternak Domba dengan Lama Penyimpanan yang Berbeda
Abstrak: The objective of this experiment was to evaluate storage wafer on physical characteristic and added water to increase acceptability of thin-tailed sheep. The experimental design used in this research was Completely Randomized Design for testing physical characteristic with 3 treatments and 3 replications with R1: 0 week storage, R2: 3 weeks of storage, R3: 6 weeks of storage and Block Randomized Design to test acceptability with 4 treatments and 3 replications with body weight as a block with P1: offering wafer without the addition of water, P2: offering wafer with the addition of water 25% of the feed given, P3: offering wafer with the addition of water 50% of the feed given, P4: offering wafer with the addition of water 75% of the feed given. The results of this research showed that the storage time significantly different (P<0.05) on moisture, water activity, water absorption. Insect attack can be increase with storage during six weeks. The Addition of water on wafer significantly different (P<0.05) on acceptability of sheep at length storage on 3 and 6 weeks. Based on the results length storage on 6 weeks increase on moisture, decrease on water absorption and increase on acceptability of sheep with the addition of water 75%.
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Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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