Judul: Kajian Produktivitas dan Fertilitas Itik Cihateup.
Abstrak: Cihateup duck is a primary duck of West Java that has been known as layer duck. It was lived at high land on cool temperature and mostly found is Tasikmalaya and Garut regency. This duck has not been known about of its biological characteristics yet. The aim of this research was to obtain information of production performance of Cihateup duck, which can be used as a reference for the animals development. Twelve female, 5 males ducks from Tasikmalaya regency and 31 females, 19 males ducks from Garut regency were used in this research. Commercial diet with 16% crude protein was given to the experimental animals. Water and feed were provided ad libitum. The data characteristic of production and fertility were analyzed with t-test by minitab release 13.20. Ratio of male duck and female duck was analyzed with X2 test. Correlation between production and fertility was analyzed with regretion by SAS 6.12. The result showed that Cihateup ducks are potential to be layer type. Perform of production that consist maturity age showed earlier. Average og body weight maturity of Cihateup ducks were 1 500-1 550 g. Peak production of Cihateup ducks were occured at third week (81.05±2.21 %) with potential production upper 60 %. Width of pubic bones Cihateup duck was 6 cm. Reproduction performs could be estimated from number of ova (772.17±663.60 eggs). The result showed that both of ducks had high potential egg production. Fertility of ducks were high, and there were similarity of male and female DOD. There were correlation between production and reproduction in Cihateup duck. This correlation values could be used to estimate production by reproduction traits.
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Judul: Daya Tetas Telur Itik Cihateup dan Alabio
Abstrak: Local ducks in Indonesia such as alabio duck and cihateup duck have advantages as egg producer and meat producer. Efforts is needed to increase the population of ducks by doing hatching. This research is to learn the hatchability of alabio duck and cihateup duck and identify of the factors that can be affected hatching duck eggs. Eggs ducks used 200 grains eggs ducks cihateup and eggs ducks alabio 300 grains. The process of hatching the egg ducks held for 28 days. The percentage fertility and hatchability results duck eggs alabio higher than cihateup duck eggs. Death embryonic the biggest occurred on the day to 26-28 days. Greater egg weights produce larger DOD. Weight of eggs and duck eggs index has no effect on hatchability but which affect hatchability of duck eggs in this study is high temperature during incubation, lower humidity during the period hatcher and egg hygiene. Alabio duck egg weight is lighter than duck eggs cihateup and more oval shaped while cihateup duck eggs more rounded shape. Weight egg and index egg on two types of eggs uniforms.
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Judul: Pengembangan Sistem Rotasi Peta pada Perangkat Mobile tanpa Sensor Magnetometer
Abstrak: Due to the improvement of technology, the function of mobile phone has changed a lot. Nowadays, mobile phone is used not only for communication, but also to support the user’s activity. Many mobile phones now have Operating System (OS) and sensors like GPS and magnetometer. GPS is a sensor that can be used to identify any location, including the location of the user, while magnetometer can be used to identify direction. With data that come from GPS and magnetometer, we can build a navigation application that can rotate its map according to the rotation of the user. Meanwhile, in the Android Compability Definition Document point 1.6 until 2.2, Google have requirements for mobile phones to have GPS and magnetometer sensors if they want to use Android OS. But, since the release of 2.3.3 OS, Google has changed its requirements, allowing any mobile phones to have Android OS without having the magnetometer sensor. The objective of this research is to build an navigation application that can rotate without using magnetometer sensor. The value of the rotation degree is taken from last two position. To stabilize the value, Exponential Smoothing is used in filtering process. This system also use Haversine method to recognize whether the user is walking or driving/riding.
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