Judul: Pemanfaatan Asap Cair Tempurung Kelapa dalam Air Minum terhadap Gambaran Darah Puyuh Periode Grower
Abstrak: Puyuh merupakan unggas yang paling kecil dan mampu berproduksi dalam waktu cepat. Namun demikian puyuh sangat rentan terhadap stres yang dapat menurunkan daya tahan tubuh. Asap cair mengandung senyawa fenol yang dapat berperan sebagai antioksidan. Penelitian ini bertujuan menganalisis penambahan asap cair tempurung kelapa sebagai antioksidan terhadap gambaran darah puyuh periode grower (konsumsi minum, konsumsi pakan, jumlah eritrosit, kadar hemoglobin, persentase hematokrit, jumlah leukosit, dan diferensiasi leukosit). Penelitian ini menggunakan 150 ekor puyuh betina umur 21-42 hari. Metode penelitian menggunakan rancangan acak lengkap (RAL) terdiri atas 5 perlakuan dan 3 ulangan, yaitu P0 (kontrol), P1 (0,25 mL), P2 (0,50 mL), P3 (0,75 mL) dan P4 (1 mL) L-1 air minum. Hasil penelitian menunjukkan penambahan asap cair tempurung kelapa dosis L-1 menghasilkan sel darah merah, hematokrit, sel darah putih normal dan nilai H/L terendah. Penambahan asap cair dalam air minum dengan dosis 0,75 mL L-1 dapat menurunkan stres oksidatif akibat cekaman panas., Quail is the smallest poultry and has the ability to produce quickly. However quail is very sensitive to stress which can reduce the body's resistance. Liquid smoke contains phenol as antioxidant. This study aims to analyze the addition of coconut shell liquid smoke as antioxidant to the appearance of grower period quail’s blood (erythrocyte count, hemoglobin level, hematocrit percentage, leukocyte count, leukocyte differentiation, feed consumption, and drink consumption). This study used 150 female quails aged 21-42 days. The study method used a completely randomized design (CRD) consisting of 5 treatments and 3 replications, namely P0 (control), P1 (0,25 mL), P2 (0,50 mL), P3 (0,75 mL) and P4 (1 mL) in L-1 of drinking water. The results showed that the addition of coconut shell liquid smoke at dose 0,75 mL L-1 produced normal red blood cells, hematocrit, white blood cells and the lowest H/L. The addition of liquid smoke at dose 0,75 mL L-1 could reduce oxidative stress due to heat stress.
Keyword: Antioksidan, Asap Cair, Puyuh, Stres, Tempurung Kelapa

Judul: Physiological Performance and Productivity of Quail Layer Period Supplemented Coconut Shell Liquid Smoke
Abstrak: Asap cair tempurung kelapa (ACTK) umumnya digunakan sebagai pengawet makanan dan mengandung flavonoid, tanin dan saponin sehingga memiliki sifat antioksidan yang dapat mengatasi stres oksidatif pada puyuh. Penelitian ini bertujuan menganalisis penggunaan asap cair tempurung kelapa terhadap kinerja fisiologis dan produktivitas puyuh periode layer. Metode penelitian yang digunakan yaitu rancangan acak lengkap (RAL) yang terdiri dari 5 level perlakuan dan 3 kali ulangan yaitu P0 (kontrol), P1 (0,25 mL/L ACTK), P2 (0,50 mL/L ACTK), P3 (0,75 mL/L ACTK), P4 (1 mL/L ACTK). Variabel yang diamati yaitu kinerja fisiologis (hematologi, superoksida dismutasi (SOD), malondialdehida (MDA) dan rasio H/L), produktivitas (konsumsi air minum dan pakan, produksi telur, massa telur, konversi pakan (FCR) dan mortalitas), dan kualitas fisik telur (bobot telur, tinggi putih telur kental dan persentase kerabang telur). Hasil penelitian menunjukkan bahwa pemberian ACTK tidak berpengaruh (P>0,05) terhadap produktivitas dan kualitas fisik telur. Nilai hematologi dan stres indikator pada puyuh yang diberi ACTK, khususnya P1 dapat mengurangi stres oksidatif. Nilai konversi pakan optimal diperoleh oleh P1 (3,35). Kesimpulan penelitian ini yaitu Asap cair tempurung kelapa (ACTK) grade 3 dapat digunakan untuk mengurangi stres oksidatif pada puyuh periode layer. Dosis 0,25 mL/L air minum (P1) ACTK menghasilkan nilai terbaik untuk indikator stres dan feed conversion ratio (FCR)., Coconut shell liquid smoke (CSLS) is commonly used as a food preservative. It contains flavonoids, tannins, and saponins, all of which have antioxidant characteristics that can help quail to overcome oxidative stress. This study aimed to analyze the effect of coconut shell liquid smoke on the physiological performance and productivity of the quail laying period. The research method used a completely randomized design (CRD) consisting of 5 treatment levels with 3 replications, namely P0 (control), P1 (0,25 mL/L CSLS), P2 (0,50 mL/L CSLS), P3 (0,75 mL/L CSLS) and P4 (1 mL/L CSLS). Variables measured included physiological performance (hematology, superoxide dismutase (SOD), malondialdehyde (MDA) and H/L ratio), productivity (water and feed intake, egg production, egg mass, feed conversion ratio (FCR), and mortality), and physical egg quality (egg weight, viscous albumin height and percentage of eggshell). The results showed that supplementing CSLS had no significant effect (P>0,05) on quail eggs' performance and physical egg quality. Hematological values and stress indicators revealed that quail-supplemented coconut shell liquid smoke, particularly P1, can lower oxidative stress. The optimum FCR value was obtained at P1 (3,35). It was concluded that coconut shell liquid smoke could be used as a reduction of oxidative stress in the quail layer period. It was found that the optimum stress indicators and FCR were obtained at a dose of 0.25 mL/L CSLS through drinking water (P1).
Keyword: asap cair, puyuh, stres oksidatif, tempurung kelapa

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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