Judul: Evaluasi penambahan tepung daun beluntas (Pluchea indica L.) dalam ransum terhadap tampilan produksi ayam broiler pada kepadatan kandang yang tinggi
Abstrak: This research was conducted to study the effcct of beluntas leaf powder usage in the diet on performances (feed consumption. body weight gain, :eed conversion, water consumption) and cholesterol of the broilers. The research used 162 DOC (day old chicken) strain CP 707. The treatment diets were : R1 (commercial feed without beluntas leaf powder or vitastress). R2 (RI + virastress), R3 (commercial feed + 2% beluntas leaf powder). R4 (commercial feed + 4% beluntas leaf powder),'RS (commercial feed + 6% beluntas leaf powder) and R6 (commercial feed + 8% beluntas leaf powder). The data were analyzed using Analyses of Variance and any significant different were further tested usins Least Significant Difference. The results showed that the treatment diets significantly increased (P<0.01) final body weigh1 and body weight gain and significantly increased (PcO.05) feed consumption and water consumption . However, the treatment diet significantly decreased (P<0.01) feed covenion. Usage of 2?'o beluntas leaf powder gave the best performances i.e., 1,152 g/bird (final body weigh), 1,114g/bird (body weigh gain). 1,69 1 ghird (feed consumption), 1.44 (feed conversion) and A.617mlhird (water consumption). Usage of beluntas leaf powder decreased the cholesterol content of broiler's meat.
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Judul: Effect of Adding Turmeric Flour (Curcuma Domestica Val) as Feed Additive on Broiler Chicken Performance
Abstrak: Penggunaan feed additive dalam ransum menjadi alternatif efisiensi pakan pada ayam broiler. Kunyit (Curcuma domestica) merupakan tanaman herbal yang memiliki kandungan zat aktif berupa kurkumin sebagai antioksidan dan minyak atsiri sebagai pemusnah bakteri serta mengandung sifat antiinflamasi atau antiradang, sehingga berpotensi untuk dijadikan feed additive alami. Penelitian ini bertujuan mengkaji efek penambahan tepung kunyit pada pakan sebagai feed additive terhadap performa ayam broiler dengan metode studi pustaka dan pendekatan model matematis regresi linear sederhana. Terdapat 17 studi terindeks scopus, garuda dan sinta (science technology index) yang dipublikasikan tahun 2006-2020 ditabulasi pada Microsoft Excel. Parameter studi pustaka yang digunakan yaitu meliputi bobot akhir (g ekor-1), konsumsi pakan (g ekor-1 hari-1), PBB (g ekor-1 hari-1), FCR, mortalitas (%) dan hemoglobin (g dL-1). Data yang telah ditabulasi, dianalisis menggunakan IBM SPSS versi 20. Hasil analisis menunjukkan bahwa penambahan tepung kunyit pada pakan secara signifikan (P<0,01) berpengaruh terhadap peningkatan pertambahan bobot badan dan bobot badan akhir. Penambahan tepung kunyit tidak berpengaruh (P>0,10) terhadap konsumsi pakan, Feed Conversion Ratio, angka mortalitas ayam broiler, dan hemoglobin. Berdasarkan hasil penelitian, penambahan tepung kunyit dengan level 0,50% merupakan dosis paling optimal yang dapat meningkatkan pertambahan bobot badan dan bobot akhir ayam., The use of feed additives in the ration is an alternative to feed efficiency in broiler chickens. Turmeric (Curcuma domestica) is an herbal plant that contains active substances in the form of curcumin as an antioxidant and essential oil as a bacteria destroyer and contains anti-inflammatory or anti-inflammatory properties, so it has the potential to be used as a natural feed additive. This study aims to examine the effect of adding turmeric flour to feed as a feed additive on the performance of broiler chickens using a literature review method and a simple linear regression mathematical model approach. There are 17 scopus, garuda and sinta indexed studies (science technology index) published in 2006-2020 tabulated in Microsoft Excel. The literature study parameters used included final weight (g head-1), feed consumption (g head-1day-1), PBB (g head-1 day-1), FCR, mortality (%), and hemoglobin (g dL-1). The tabulated data were analyzed using IBM SPSS version 20. The results of the analysis showed that the addition of turmeric flour to the feed significantly (P<0,01) had an effect on increasing body weight gain and final body weight. The addition of turmeric flour had no effect (P>0,10) on feed consumption, Feed Conversion Ratio, broiler mortality rate, and hemoglobin. Based on the results of the study, the addition of turmeric flour with a level of 0,50% is the most optimal dose that can increase body weight gain and final weight of chickens.
Keyword: blood profile, broiler performance, Curcuma domestica, feed additive

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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