Judul: Performa Absorpsi dan Profil Mineral Darah Domba Kembar Lepas Sapih yang Mendapat Kobalt dan Bakteri Rumen Selama Prasapih.
Abstrak: The transition period at post-weaning is a crucial period; the microbial rumen of lamb is not developed yet, milk diet has been removed and the feeding regime is changed. However, growth performance and rumen bacteria in preweaning period affects the growth and nutrient utilization of weaned lamb. The study was designed to evaluate the performance, the absorption and the blood mineral profile (Ca, P, and Mg) in post-weaning lamb offered Co and rumen bacteria consortium previously in the pre-weaning period. Three-four months old of 8 garut sheep with initial body of 9.86±2.02 kg were divided into two treatments groups of control and the post administration of rumen bacteria consortium (CoBac) groups. Results showed that administration of Co and rumen bacteria consortium during pre-weaning period had no effect on performance, mineral absorption and blood mineral profile in post-weaning. It is concluded that administration of Co and rumen bacteria consortium during pre-weaning period of lamb did not improve the performance and nutrient utilization during transition period.
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Judul: Performa Domba Kembar Lepas Sapih yang Mendapat Kobalt dan Konsorsium Bakteri Rumen selama Periode Prasapih
Abstrak: In the period of weaning, twin born lambs with low birth weight are more susceptible to environmental temperature and pathogenic infection. This study was design to evaluate the performance of weaned twin lambs offered diet supplemented with Co and rumen bacteria consortium during pre-weaning period. Eight of three months-old of twin garut lambs were selected for this study. Data were analyzed according to t-test student. Treatments consisted of: 1). Control diet and 2) diets supplemented with Co + rumen bacteria consortium (CoBac) during pre-weaning period. Result showed that as feed and dry matter intake of post-weaning twin lambs significant (P<0.01) to gain with equation was y = -583.4 + 92.83x; r2 = 0.77 and y = -244.5 + 47.85x; r² = 0.67. The gain (P<0.01) accord with age of post-weaning twin lambs with y = 0.056x + 5.788; r² = 0.352. There were no significant in nutrient intake, digested nutrient and average daily gain of post-weaning twin lambs. Supplemented Co + rumen bacteria consortium could not improved performance of post-weaning twin garut lambs.
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Judul: Kajian frieze groups untuk klasifikasi dan konstruksi desain berdasarkan simetri pada pola
Abstrak: Frieze groups adalah konsep matematika untuk mengklasifikasikan desain pada dua dimensi permukaan yang berulang-ulang dalam satu arah berdasarkan simetri pada pola. Frieze groups merupakan grup yang mempertahankan bentuk pola. Pergerakan bentuk pola terdiri dari translasi, refleksi dan rotasi 180o. Tujuan dari karya ilmiah ini adalah mengkaji sifat Frieze group, mengkaji penggunaan Frieze group dalam mengklasifikasikan simetri pada pola dan mengkonstruksi pola dengan menggunakan software tesselmania. Hasil yang telah diperoleh, bahwa jenis Frieze groups merupakan subgroup dari grup pergerakan pola. Selain itu dapat dilihat dari sifat isomorfik berbagai jenis Frieze groups. Untuk mengkonstruksi sebuah bentuk pola dapat menggunakan salah satu software untuk membentuk sebuah pola bidang datar (dua dimensi) yaitu tesselmania.
Keyword: Frieze groups, Simetri, Pola