Judul: Breeding Techniques and Addition Mealworm to Asian Pied Starling Feed in Bird Captivity, IPB Dramaga
Abstrak: Upaya konservasi untuk meningkatkan populasi jalak suren dapat dilakukan melalui penangkaran. Penelitian ini dilakukan dengan tujuan mengidentifikasi teknik penangkaran, tingkat keberhasilan dan pengaruh pemberian ulat hongkong terhadap konsumsi dan aktivitas makan jalak suren. Penelitian dilakukan di Penangkaran Burung, Kampus IPB Dramaga pada Maret-April 2021. Metode pengumpulan data dilakukan melalui observasi, percobaan, wawancara, dan studi pustaka. Teknik penangkaran jalak suren di Penangkaran Burung, IPB Dramaga masih perlu perbaikan. Buku silsilah burung jalak suren telah berhasil ditelusuri. Jumlah populasi jalak suren terdiri dari 19 ekor indukan dan 12 ekor anakan. Tingkat keberhasilan penangkaran masih tergolong rendah dengan tingkat daya tetas dan perkembangbiakan induk tergolong sedang dan angka kematian tinggi. Pemberian ulat hongkong berpengaruh nyata terhadap penurunan jumlah konsumsi pakan utama dan frekuensi aktivitas makan berturut-turut dengan penambahan ulat hongkong (0, 20, 40 gram/ekor/hari) memiliki rata-rata jumlah konsumsi pakan utama berturut-turut 24,59 gram; 9,64 gram dan 9,39 gram, dan rata-rata frekuensi aktivitas makan tiap perlakuan berturut-turut sebanyak 104,76, 40,733 dan 19,1. Kata kunci : jalak suren, pakan, penangkaran, ulat hongkong, Conservation efforts increase asian pied starling population can be done through captivity. This research was conducted with the aim of identifying the captive technique, the succes rate and the effect of feeding mealworm on the consumption and feeding activity of the asian pied starling. The research was conducted at the Bird Farm, Dramaga Campus of IPB in March-April 2021. The data collection methods were carried out through observation, experimentation, interviews, and literature study. The technique of captive asian pied starling in Bird Farm, IPB Dramaga still needs improvement. The genealogy of the asian pied starling has been succesfully traced. The total population of asian pied starling consisted of 19 broods and 12 chicks. The succes rate of captive breeding is still low with the hatchability and breeding rates of the broodstock being moderate ansd the mortality rate is high. The feeding of mealworm significantly affected the decrease in the amount of main feed consumption and the frequency of feeding activity, respectively, with the addition of mealworm (0, 20, 40 grams/head/day) havig an average main feed intake of 24.59 grams; 9.64 grams and 9.39 grams, and the average frequency of eating activity for each treatment was 104.76, 40.733 and 19.1, respectively. Key words : asian pied starling, captivity, feed, mealworm
Keyword: Asian Pied Starling, Captivity, Mealworm, Feed

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: Invers Drazin dari Matriks Toeplitz Singular
Abstrak: Matriks Toeplitz adalah matriks yang setiap unsur pada diagonal utama bernilai sama dan setiap unsur pada subdiagonal yang bersesuaian dengan diagonal utama juga bernilai sama. Matriks singular adalah matriks yang tidak bisa ditentukan inversnya. Akan tetapi, dapat diupayakan untuk ditentukan inversnya menggunakan invers matriks yang diperumum. Invers Drazin merupakan salah satu jenis invers matriks yang diperumum. Pada karya ilmiah ini ditentukan invers Drazin dari matriks Toeplitz singular dengan menggunakan metode Leverrier Faddeev. Kemudian, ditentukan invers Drazin dari matriks Toeplitz singular yang direpresentasikan sebagai penjumlahan segitiga bawah dan segitiga atas matriks Toeplitz berdasar pada teorema Gohberg dan Semencul., Toeplitz matrix is a matrix in with element on the main diagonal has the same value and on the subdiagonal corresponding to the main diagonal also has the same value. Singular matrix is a matrix that has no inverse. However, it can be attempted to determine the inverse using a generalized inverse matrix. Inverse Drazin is a type of generalized matrix inverse. This paper discussed the inverse Drazin for a singular Toeplitz matrix using the Leverrier Faddeev method. Then, the Drazin inverse of the singular Toeplitz matrix which is represented as a sum of products of lower and upper triangular Toeplitz matrix based on Gohberg and Semencul theorem.
Keyword: inverse Drazine, singular Toeplitz matrix