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: Utilization of Coconut Shell Liquid Smoke in Quail Performance Grower Period
Abstrak: Pemberian antioksidan dari asap cair tempurung kelapa dapat mengatasi stres oksidatif pada puyuh. Penelitian ini bertujuan menganalisis penggunaan asap cair tempurung kelapa (ACTK) terhadap performa puyuh (Coturnix coturnix japonica) periode grower. Metode penelitian menggunakan rancangan acak lengkap (RAL) terdiri dari 5 taraf perlakuan dengan 3 ulangan yaitu P0 (kontrol), P1 (0,25 mL/L ACTK), P2 (0,50 mL/L ACTK), P3 (0,75 mL/L ACTK) dan P4 (1 mL/L ACTK). Variabel yang diukur meliputi bobot badan awal, bobot badan akhir, pertambahan bobot badan, konsumsi pakan, konsumsi minum, feed conversion ratio (FCR), morbiditas, mortalitas dan income over feed quail cost (IOFQC). Hasil penelitian menunjukkan pemberian ACTK tidak nyata berpengaruh (P>0,05) terhadap konsumsi pakan, konsumsi air minum dan pertambahan bobot badan. Tingkat morbiditas dan mortalitas pada penelitian ini 0%. Nilai FCR terbaik diperoleh P4 (4,28). Nilai IOFQC tertinggi pada P4 (Rp 1.578,92). Kesimpulan penelitian ini adalah pemberian asap cair tempurung kelapa pada puyuh betina periode grower melalui air minum dengan taraf yang berbeda tidak nyata berpengaruh terhadap konsumsi pakan, konsumsi air minum dan pertambahan bobot badan. Dosis 1 mL/L air minum (P4) asap cair tempurung kelapa menghasilkan nilai FCR dan IOFQC terbaik., Giving antioxidants from coconut shell liquid smoke can overcome oxidative stress in quail. This study aims to analyze the effect of coconut shell liquid smoke (ACTK) on the performance of quail (Coturnix coturnix japonica) in the grower 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 ACTK), P2 (0.50 mL/L ACTK), P3 (0.75 mL/L ACTK) and P4 (1 mL/L ACTK). Variables measured included initial body weight, final body weight, body weight gain, feed intake, water intake, feed conversion ratio (FCR), morbidity, mortality and income over feed quail cost (IOFQC). The results showed that giving ACTK had no significant effect (P>0.05) on feed intake, water intake and body weight gain. The morbidity and mortality rates in this study were 0%. The best FCR value was obtained at P4 (4.28). The highest IOFQC value was at P4 (Rp 1,578.92). The conclusion of this study is that giving coconut shell liquid smoke to female quails in the grower period through drinking water at different levels had no significant effect on feed intake, water intake and body weight gain. A dose of 1 mL/L of drinking water (P4) of coconut shell liquid smoke produced the best FCR and IOFQC values.
Keyword: antioxidants, coconut shell, liquid smoke, quail

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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