Judul: Penggunaan Saponin pada Ayam Broiler : Performan, Perubahan Patologis dan Pengaruh terhadap lnfeksi Eimeria tenella
Abstrak: This research was done to investigate the effect of saponin in broiler's performance, the role of anti coccidia and to evaluate the pathological changes of liver. Nine hundred and ten and ninety Cobb strain broilers were used in this research. The birds were divided into two experiments. In the first group , saponin was administrated orally in feed and not infected with Eimeria tenella (E. tenella). All groups from this experiment, bodyweight, FCR, feed intake and liveability was evaluated all at days 21, 30 and 49. Leucocyte differentiation. hematocrite value and relative weight of organs were also examined. In the second group, broilers were administrated with saponin and orally infected with E. tenella (1 x 104 sporulated oocysts). The caecum of these birds was examined for the population number of oocysts and the life cycle of parasites histopathologically. In this experiment, the histopathological changes of the livers were examined at days 18, 21 and 28. The results showed that administration 75 ppm saponin in feed for 21 days could increase the general performance. By using 150 ppm of saponin decreased the numbers of oocysts, macrogametocytes and microgametocytes. In the other hand, the histopathological examination showed that application dose 150 ppm saponin for 21 days caused degeneration and necrosis of hepatic cells (7,67 %).
Keyword: daya kerja saponin, kegunaan saponin, karakteristik saponin, keehatan ayam

Judul: Penambahan saponin dan infeksi Eimeria tenella:gambaran stadia parasit pada sekum ayam broiler
Abstrak: Koksidiosis merupakan kendala utama untuk perkembangan peternakan ayam intensif di lingkungan tropis seperti di Indonesia. Kerugian ekonomi akibat penyakit ini digambarkan dalam bentuk kematian, meskipun yang sering terjadi adalah penurunan produksi baik itu karkas maupun telur. Pengendalian dengan penggunaan koksidiostat secara terus-menerus dapat menimbulkan resistensi pada galur coccidia tertentu, oleh karena itu perlu adanya pengendalian koksidiosis alternatif dengan biaya yang murah dan mudah didapat. Saponin dapat merupakan salah satu tambahan pada makanan (feed additive) yang potensial untuk merangsang sistem kekebalan tubuh. Peran saponin dalam sistem kekebalan tubuh adalah sebagai imunostimulan. Saponin diduga mempunyai aktivitas sebagai anti protozoa yang dapat menghambat tahapan siklus Eimeria tenella (E. tenella). Penelitian ini bertujuan untuk mengetahui pengaruh penambahan saponin ke dalam pakan ayam broiler terhadap perkembangan berbagai stadia E. tenella. Sebanyak 72 ekor ayam broiler strain Cobb dibagi menjadi 8 kelompok. Penambahan saponin ke dalam pakan dengan konsentrasi 75 ppm dan 150 ppm diberikan sejak ayam umur sehari (DOC). Penggunaan koksidiostat (maduramicin) sebagai pembanding dengan dosis 6 ppm diberikan dengan cara yang sama. Ayam umur 14 hari diinfeksi per oral dengan dosis 1 x 10 ookista E. tenella bersporulasi. Pengamatan histopatologi dilaksanakan untuk mengamati stadia E. tenella dalam sekum pada hari ke 4, 7, dan 14 hari pasca infeksi. Hasil penelitian menunjukkan penambahan saponin dengan konsentrasi 75 ppm menyebabkan penurunan jumlah skizon pada hari ke-4 dan 7 pasca infeksi. Penambahan saponin dengan konsentrasi 75 dan 150 ppm pada pakan ayam broiler menyebabkan E. tenella stadia mikrogamet, makrogamet dan ookista tertahan di dalam sekum.
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Judul: 3D model reconstruction using aerial photo to measure object height
Abstrak: 3D reconstruction, especially for height extraction, using digital aerial photos taken from a non-metric camera and Unmanned Aerial Vehicle (UAV) is a challenging study. The purposes of the study are to determine the factors affect the accuracy of an object’s height reveal from a 3D model and establish procedures to deliver the optimal result. Two or more overlapping aerial photos can be constructed into the 3D model by applying the principles of collinearity and epipolar geometry using 3D reconstruction algorithm. Due to the instability of non-metric digital camera, the camera must be calibrated before 3D reconstruction is processed, in that way the quality of spatial extraction can be then measured. The study is conducted using 24 megapixels resolution Sony NEX7 digital camera and Hexacopter UAV. UAV was flown to a height of 50 m, 60 m and 70 m and placed at a certain position in order to get some height variations of camera. Camera Calibration Toolbox is utilized to calculate intrinsik parameters of the camera and a specific program is developed using MATLAB in order to build the 3D model and to obtain the object’s height. The result validation is done by comparing the height from 3D model with that one measured using Electronic Total Station. The accuracy of the object’s height up to 1 mm successfully achieved, with the largest height prediction error reaches 15.2 cm at 70 m flying height above ground level and average percentage error 4.07 for 20 objects.
Keyword: 3D reconstruction, collinearity, epipolar geometry, UAV