PENGARUH METODE DETERMINASI TERHADAP NILAI ENERGI METABOLIS DEDAK PADI

Three experiments were done to study the apparent and true metabolizable energy (AMEN and TME) values of rice bran determined with broiler chicken and duck. In experiment I, 48 broiler of 6 weeks old consisting male and female broiler were divided into 8 group, 3 birds each. Each group was fed experimental feed i.e. basal, mix of basal and rice bran (50:50) and pure rice bran according to determination methods which were Farrell, Terpstra (Spelderholt Quantitative Method) and Sibbald method. Experiment II used 10 male broiler chickens of 6 week old and 1250 ± 9,6 g body weight and 10 male ducks of 8 week old and 1300 ± 11,2 g body weight. Five of them were unfed for correcting the endogenous excreta energy. The results of experiment I indicated that the metabolizable energy values of rice bran determined on three methods was significantly different. The TME values of rice bran was higher than AMEn values which determined with Farrell method and Terpstra method and the values higher if determined with Farrell method than Terpstra method. The results of experiment II indicated that the AMEn value of rice bran which determined with duck was higher then chicken but the TME values was not significantly different. The result of experiment III indicated that the TME values of rice bran were influenced by the quality. Each quality of rice bran had higher TME values if determination, species, sex and quality of the rice bra

Kuantitas dan kualitas telur ayam arab (Gallus turcicus) silver dan gold

This research was conducted to examine egg quantity and quality of Silver and Gold Arabic chicken (Gallus turcicus). The materials used in this study were 30 Silver and 30 Gold Arabic chicken aged 8-9 months which had mean of initial body weight were 1,93±0,13 and 2,00±0,15 kg respectively. The method was experiment on two groups of Arabic chicken based on feather color (Silver and Gold). Data was analyzed by unpaired t test. The study shows that egg weight of Gold Arabic chicken (46.81±2.41 g) was significantly heavier (P<0.01) than that of Silver Arabic chicken (42.75±2.22 g). However, there were no significant difference on egg number, egg index, yolk color eggs, yolk protein content, yolk fat content, and Haugh units among these two chickens. It could be concluded that Gold Arabic chicken could produce heavier egg weight than the Silver one although there were no differences on egg number, egg index, yolk color eggs, yolk protein content, yolk fat content, and Haugh units. The study suggests breeding Gold Arabic chickens due to its egg weight production. Keywords: Arabic chicken, feather color, quantity and quality egg