Judul: Teknik Penangkaran dan Perilaku Harian Jalak Putih di Mega Bird and Orchid Farm Bogor, Jawa Barat
Abstrak: Mega Bird and Orchid farm (MBOF) has succesfully bred Black Winged Starling. The purpose of this research were to identify the captivity technique applied by MBOF and describe the Black Winged Starling‟s behaviours. This research was done from 12th of September to 30th of November 2013. The observation was carried out on a pair of Black Winged Starling. The result showed that the captivity technique in MBOF which include caging, food provisioning, health keeping and reproduction aspect are managed carefully. The practice had resulted 71,4% of parental breeding rate, 83,4% of egg hatching rate and 17,3% of dead chicks rate. The behaviors that had been identified were investigative behaviour, chirping, feeding, preening, resting, moving, bathing, dancing and defecating. Rest and bath performed along with rising temperature, flying avoid was done as response due to care activity. The birds were not stressed out due to care activity although temperature and humidity change.
Keyword: daily behaviours., captivity technique, black winged starling

Judul: Teknik penangkaran dan analisis koefisien inbreeding pada jalak bali (Leucopsar rothschildi) di Mega Bird and Orchid Farm (MBOF), Bogor, Jawa Barat
Abstrak: Bali starling (Leucopsar rothschildi) is an endemic species of Bali Island which needed to be preserved. It’s population in the nature had decreased that the species stated as rare and endangered. It had been include in the criticaly endangered category of the Red Data Book and also included in the Appendix 1 CITES. The condition required conservation efforts. Captivity bread in ex-situ conservation. Was one of the effort to conserve bali starling. Mega Bird and Orchid Farm (MBOF) was one of the captive breeding effort which succeed in breeding bali starling. Calculation of inbreeding coefficient should be done forward bali starling bred in the farm in order to maintain it’s genetic purity. Morphological measurement should also be done to identify inbreeding pressure. Research was held in Mega Bird and Orchid Farm (MBOF) on June until October 2011. The data type used was consisted of primary and secondary data. The data of techniques captive breeding was analyzed descriptive and quantitative analysis, inbreeding coefficient was quantitative analysis. Analysis using t-student test was also employed in compary body size of female and male bali starling, The test was conducted using SPSS 16.0. Descriptive analysis was also conducted compary data of body size in this research with data in previous research and qualitative morfological characteristic of bali starling. Captive breeding of bali starling in MBOF began in 1996 with three pairs of bali Starling origineted from Safari Park I Cisarua Bogor, from the bird seller and the bird lovers. There were 91 individual of bali starling up to Oktober 2011. The kind of cage in MBOF consisted of display cage, maintenance cage, reproduction cage and incubator. The feed given to the bali Starling were banana, voer, crickets, and kroto (ant’s egg). The average number of highest consumption was crickets 15.18 g/tail/day and the palatability of 59.22 %. Each individual of bali starling in MBOF needed 11.48% protein and1909.0 kcal/day. Types of diseases that had attacted in the bali Starling MBOF were cataracts, smallpox on foot, flu (influenza) and sore eyes. Percentage and criteria captive breeding success of bali starling were high egg hatching rate (66.66%), moderate mortality (33.33%) and reproduction level high (63.88%) . The analysis of inbreeding coefficient should a result of 0 value, which ment that there was not any occurrence of inbreeding. However, there was a possibility of helf sibling marriage with inbreeding coefficient value of 0.25. There was not any significant different between quantitatif morphological characteristic of the male and female body size. There was any significant difference between the data of morfological characterstic current research the previous once conducted by Masy’ud (1992) and Helvoort et al. (1985) which ment that there had not been any inbreeding pressure to bali starling in MBOF.
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Judul: Aproksimasi Fungsi Sinus dan Kosinus sebagai Kombinasi Linear dari Fungsi Eksponensial
Abstrak: Salah satu gagasan yang menarik dalam matematika adalah aproksimasi suatu fungsi oleh fungsi lain. Sebagai contoh, fungsi polinom dapat diaproksimasi menggunakan deret Taylor atau fungsi persamaan diferensial dapat diaproksimasi menggunakan deret Fourier. Adapun fungsi yang dapat mengaproksimasi fungsi lain salah satunya adalah fungsi eksponensial. Kemungkinan mengaproksimasi fungsi dengan kombinasi linear dari fungsi eksponensial dari bentuk eˣ, e²ˣ, ... dianggap sebagai perkembangan sejajar dengan gagasan Deret Taylor yang mengaproksimasi fungsi dengan kombinasi linear dari segi fungsi kuadrat. Fungsi sin x dan cos x digunakan sebagai target untuk menilai seberapa baik aproksimasi yang dilakukan oleh fungsi yang diberikan. Aproksimasi fungsi sinus dan kosinus menggunakan hampiran Taylor lebih akurat dibandingkan dengan aproksimasi menggunakan fungsi eksponensial.
Keyword: Aprosimaksi eksponensial, aproksimasi fungsi, aprosimaksi Taylor, fungsi eksponensial