Judul: Pengaruh Pemberian Ekstrak Tanaman Obat Terhadap Performan Dan Gambaran Histopatologi Hati Ayam Broiler
Abstrak: Herbal medicine are very famous now, as the substitute of chemical and sintetic drugs. The purpose of the study was to observe the effect of herbal extracts treatment on the chicken performance and the histophatology of liver. This study used 40 day old chick (DOC) and the treatment was given for four weeks. The weekly data of chicken body weight was analyzed using analysis of variance (ANOVA). Scoring system was used for analyzing the lesion of the liver. Results of this study indicated that the chicken body weight was significantly influenced by herbal extracts treatment (p<0.05) compared to negative control. Histopathologically, treatment with sambiloto extract showed the best result in the liver histopathology and treatment results while combination of the adas, temu ireng and sambiloto extract indicating the poor condition in the liver histophatology. Based on the study, it can be concluded that the temu ireng extract showed the best result for chicken performance and sambiloto extract showed the best result for liver histophatology.
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Judul: Pengaruh Formula Ekstrak 4 Tanaman Obat Terhadap Gambaran Histopatologi Limpa Ayam Broiler
Abstrak: This research was aimed to elaborate the effects of four medicinal plants extract formulas (Temulawak/Curcuma xanthorriza Roxb., Temu Ireng/Curcuma aureginosa Roxb., Meniran/Phyllanthus niruri Linn., and Sambiloto/Andographis paniculata Ness.) on histopathological lesions of chicken’s spleen by examine the general lesions and measuring cell density on white pulp. Twenty five of day old chicks were divided into five groups with various treatments. The treatments were: (1) F1: Temulawak, Temu Ireng, Meniran, and Sambiloto; (2) F2: Temulawak, Temu Ireng, and Meniran; (3) F3: Temulawak and Temu Ireng; (4) F4 Meniran and Sambiloto; and (5) control. The chickens were treated for 28 days. All birds were necropsied then the spleen was processed for histopathological slides using Hematoxylin Eosin staining. Cell density on white pulp areas was examined by computer software MacBiophotonic ImageJ®. The result showed there were formation of secondary follicles on all groups. White pulp cells increased significanly in F2 and F3 compared to the control and other treated groups (p< 0.05). We concluded that 4 medicinal plants were not make pathological effect to chicken spleen. Curcuminoids, flavonoids, and phylanthines of medicinal plants in F2 and F3 may induced lymphoid cells proliferation in white pulp.
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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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