Judul: Produksi dan Kualitas Susu Sapi FH Periode Laktasi Ketiga dengan  Aditif Pakan Katuk Depolarisasi
Abstrak: Penelitian ini bertujuan menganalisis pengaruh suplementasi katuk depolarisasi terhadap produksi dan kualitas susu sapi FH periode laktasi ketiga. Penelitian ini menggunakan 3 ekor sapi FH periode laktasi ketiga pada satu bulan setelah beranak yang berumur 48 bulan yang dipelihara di PT.GGL di Lampung. Perlakuan menggunakan aditif pakan berupa bubuk dan pellet katuk depolarisasi selama 6 minggu (2 minggu sebelum beranak hingga 4 minggu setelah beranak). Data hasil penelitian dianalisis secara deskriptif. Peubah yang diamati terdiri dari konsumsi pakan, produksi dan kualitas susu. Kualitas susu meliputi berat jenis, kadar lemak, kadar protein, bahan kering (BK), dan bahan kering tanpa lemak (BKTL). Penggunaan katuk depolarisasi sebagai aditif pakan berpotensi meningkatkan produksi susu. Katuk depolarisasi menghasilkan susu dengan kadar protein, BK, BKTL yang relatif lebih tinggi, dan kadar lemak yang relatif lebih rendah dibandingkan kontrol., This study was conducted to determine the effect of supplementation depolarization katuk on production and milk quality of FH dairy cow in third lactation periods. FH dairy cow was used in study including three FH dairy cow on third lactation periods of one month after calving birth at the age of 48 months were kept in PT. GGL in Lampung. The feeding treatments was used feed additive of powder and pellet of depolarization katuk for 6 weeks (2 weeks before it calved and 4 weeks after it calved). The data are being analyzed with description. Variable measured including milk production and its quality. Milk quality included milk density, fat, protein, total solid (TS), and solid non-fat (SNF). Using depolarization katuk as feed additive potentially increase milk production. Depolarization katuk produced milk with protein, TS, SNF relatively higher, and fat relatively lower than control.
Keyword: depolarization katuk, feed additive, FH dairy cow, milk production, milk  quality

Judul: Production of Colostrum and Colostrum Milk and Their Quality in Third Lactation FH Cows that Fed Depolarizing Katuk Supplementary Feed
Abstrak: Kolostrum adalah cairan limfa yang banyak mengandung imunoglobulin. Anak sapi yang baru dilahirkan sangat membutuhkan kolostrum. Daun katuk dipercaya dapat meningkatkan produksi susu. Penambahan katuk depolarisasi pada ransum sapi FH diharapkan dapat meningkatkan produksi kolostrum dan susu kolostrum dengan kualitas yang baik. Penelitian ini bertujuan mengetahui pengaruh pemberian pakan tambahan berupa katuk depolarisasi terhadap produksi dan kualitas kolostrum serta susu kolostrum pada sapi perah FH periode laktasi ketiga. Hewan yang digunakan dalam penelitian ini adalah sapi FH yang baru melahirkan sebanyak 3 ekor, yang akan dibagi pada 3 perlakuan dengan masing-masing perlakuan sebanyak satu ekor, yaitu kontrol (menggunakan pakan dari PT GGL), BKD (pakan GGL yang ditambahkan bubuk katuk depolarisasi), PKD (pakan GGL yang ditambahkan pellet katuk depolarisasi). Katuk depolarisasi diberikan sebanyak 100 g/ekor/hari. Hasil pengamatan disajikan deskriptif. Peubah yang diamati adalah konsumsi pakan sebelum dan setelah beranak, produksi dan kualitas kolostrum serta susu kolostrum. Hasil penelitian menunjukkan bahwa pemberian katuk depolarisasi tidak dapat meningkatkan konsumsi pakan, produksi kolostrum maupun susu kolostrum, dan kualitas susu kolostrum sapi Friesian Holstein laktasi ketiga. Peningkatan kualitas terlihat pada kolostrum sapi FH yang diberikan katuk depolarisasi berbentuk bubuk dan pellet., Colostrum is a lymph fluid that contains a lot of immunoglobulins. Newborn calves need colostrum. Katuk leaves are believed to increase milk production. The addition of depolarizing valves to the ration of FH cows is expected to increase the production of colostrum and colostrum milk with good quality. This study aims to determine the effect of supplementary feeding in t he form of depolarizing catuks on the production and quality of colostrum and colostrum milk in FH dairy cows during the third lactation period. The animals used in this study were FH cows that had just given birth as many as 3 heads, 2 which would be divided into 3 treatments with one treatment each, namely control (using feed from PT GGL), BKD (GGL feed added with depolarizing katuk powder), PKD (GGL feed added with depolarizing valve pellets). The depolarizing valve was given as much as 100 g/head/day. The results of the observations are presented descriptively. The observed variables were feed consumption before and after giving birth, production and quality of colostrum and colostrum milk. The results showed that giving a depolarizing catuk could not increase feed consumption, production of colostrum and colostrum milk, and the quality of colostrum milk of third lactation Friesian Holstein cows. The quality improvement was seen in FH cow colostrum which was given depolarizing catuk in powder and pellet form.
Keyword: colostrum, colostrum milk, depolarizing katuk, friesian holstein

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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