Judul: Identifikasi Peubah Sosial Penentu Keberhasilan Pelestarian Jalak Bali (Leucopsar rothschildi Stresemann, 1912)
Abstrak: Bali mynah (Leucopsar rothschildi Stresemann, 1912) is a critically endangered endemic species currently confined only in Bali Barat National Park. Conservation within and outside their natural habitat is necessary, one of such through captive breeding program. This research was intented to identify the variables influencing the performance of bali mynah conservation in captive breeding programme. Research was conducted at Sumberklampok Village from February to March 2013 using direct observation and interview methods involving 19 members of breeder organization and 60 non members, who were selected using random sampling. Respondents’ characteristics, cultural variables and bali mynah preservation variables were observed. Data was analyzed using chi square test ran on SPSS version 20. Results showed that cultural variables were significantly correlated with preservation variables. Folklore about bali mynah, knowledge of bali mynah, participation in captive breeding organization and income had significant correlations with length of period in conducting captive breeding. The research further concluded that the determinant societal variables in achieving successful bali mynah preservation could be categorized as economic and cultural variables.
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Judul: Teknik Pengelolaan dan Penilaian Kesejahteraan Murai Batu (Copsychus malabaricus, Scopoli 1788) di Mega Bird and Orchid Farm, Bogor, Jawa Barat
Abstrak: Population of white-rumped shama (Copsychus malabaricus) in their natural habitat tends to decrease due to hunting activity, and forest conversion and degradation. One of efforts to conserve this species is ex-situ conservation by means of birds-keeping. This research aims to analyze management technique and to assess the success of bird-keeping of white-rumped shama at Mega Bird and Orchid Farm (MBOF). This study was conducted from May to July 2014. Types of hutches at MBOF are development, reproduction and incubation buildings. Feedstocks used in this research were powder and crickets. The percentage of reproduction level in 2013 and 2014 were respectively 70% and 23.80% while the hatchability were 66% and 82.35% and mortality were 33.33% and 21.43%. Welfare assessment conducted by breeder is 69.35 while it is based on the research result is 64.25. The conclusion is that management of white-rumped shama by MBOF complies with animal welfare criteria.
Keyword: Bogor Agricultural University (IPB), white-rumped shama, reproduction, mortality, hatchability, animal welfares

Judul: : Persamaan Tunggal sebagai Representasi Kurva Komposit
Abstrak: A mathematical method is introduced to represent a composite curve based on an extension of analytic geometry. The representation is given either with a single equation or with two equations, in the case of parametric representation. This method permits the representation of composite curves in similar manner to the conventional representation of non-composite curves. Some mathematical tools, including Heaviside unit step function and periodizer function, are used in the establishment of a single equation. In this paper, regular equations of regular and irregular polygon, as well as composite curves of two dimensions, are implemented using a computer algebraic system, Mathematica.
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