Judul: Performa Ayam Kampung yang Diberi Campuran Pakan Berupa Dedak Padi dan Daun Singkong (Manihot esculenta Crantz
Abstrak: Kampung chicken is often cultivated in Indonesia in semi-intensive and extensive. This chicken has slower growth than broiler. A four weeks kampung chicken old has weight 0.20 kg while broiler has weight 1.2 kg, but kampung chicken could digest crude fiber more than 5% of the nutrient content of the feed. Rice and cassava are widely grown in lowland as well as highland and their residual processing can be used as feed. The purpose of this study was to investigate the performance of kampung chicken fed rice bran and cassava leaves. Rice bran and dried cassava leaves were stirred in warm water before feeding to the chickens. Treatment feed was given to the chickens aged 5-12 weeks (P2) and 8-12 weeks (P3) in pasta form. The control (P1) was given commercial feed at the age of 0-12 weeks. The analysis showed the feeding method influences the body weight of kampung chicken. The highest body weight showed in P1 with lowest feed conversion. The lowest body weight showed in P2 with highest feed conversion. Treatment P3 resulted body weight and feed conversion between P1 and P2. The highest mortality (13.33%) showed in P2. Rice bran and cassava leaves were good to give to kampung chicken in 9 weeks to replace commercial feed.
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Judul: Ukuran Tubuh Ayam Kampung yang Diberi Pakan Dedak Padi dan Daun Singkong (Manihot esculenta Crantz)
Abstrak: This study aimed to know body size of native chicken with a fed mixture of rice bran and cassava leaf as long 12 weeks. Animals used native chicken as much as 45 males and 45 females. The feed is commercial feed (P1), a mixture of 75% rice bran and 25% cassava leaves as a substitute for commercial feed given from the age of 5-12 weeks (P2) and the age of 9-12 weeks (P3). These research used a randomized complete design (RCD) 2x3 factorial with 3 repetition. The first factor was sex (male and female). The second factor was the type of feed (P1, P2 and P3). Data was analyzed of variance (ANOVA). The variables measured were body weight, wing length, length of spine, sternum length, length of femur, tibia length, shank length, chest circumference and shank circumference. The results showed no interaction between sex with feed treatment toward of body size. Feed affected the morphometric of native chicken. Feed P2 given the lowest performance for all body size variables and impaired growth of native chicken when given from the age of 5-12 weeks. Feed rice bran mixture 75% and 25% cassava leaf can be given from the age of 8 weeks.
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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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