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Articles by Mira Andriani
Total Records ( 2 ) for Mira Andriani
  Yose Rizal , Maria Endo Mahata , Mira Andriani and Guoyao Wu
  An experiment was conducted with 80 unsexed broilers of the Arbor Acress strain to determine the capability of a carrot and fruit juice wastes mixture (carrot, apple, mango, avocado, orange, melon and tree tomato) in the same proportion for replacing corn in broiler diet. This study involved a Completely Randomized Design (CRD) with 5 treatments (0, 5, 10, 15 and 20% of juice wastes mixture in diets) and 4 replicates per treatment. Diets were isonitrogenous (22% crude protein) and isocaloric (3000 kcal/kg diet). Measured variables were feed consumption, average daily gain, feed conversion, as well as percentages of abdominal fat pad, carcass, digestive organs (liver, pancreas and gizzard) and heart. Data were analyzed by analysis of variance for CRD. Increasing juice wastes mixture levels in diets increased feed consumption (p<0.05) and average daily gain (p<0.01), while improving feed utilization efficiency (p<0.05). These treatments also affected (p<0.05) abdominal fat pad percentage but had no effect (p>0.05) on carcass, liver, pancreas, gizzard or heart percentages. In conclusion, up to 20% of juice wastes mixture could be included for the broiler diet to effectively replace up to 40% corn in the diet.
  Yose Rizal , Maria Endo Mahata , Guoyao Wu , Hapris Maryudi and Mira Andriani
  Two experiments had been conducted to improve the nutrient quality of carrot and fruits (apple, mango, avocado, orange, melon and tree-potato) juice waste mixture. Experiment 1: to determine effects of rice-hull ash filtrate level and soaking length on nutrient contents of this juice waste mixture. A 3 x 4 factorial experiment in a completely randomized design with 3 replicates was performed. First factor was rice-hull ash filtrate level (10, 20 and 30%) and second factor was soaking length (0, 24, 48 and 72 h). Measured variables were: crude fiber, crude protein and ether extract contents. Experiment 2: to compare treated vs. untreated juice wastes mixture numerically. Nutrient contents (crude fiber, crude protein and ether extract), anti-nutrition contents (phytate and tannin) and nutritive values (amino acids profile, nitrogen retention and metabolizable energy) of treated juice waste mixture were compared with untreated one. Results of experiment 1: crude fiber and ether extract reduced (p<0.01) by soaking in 20% rice-hull ash filtrate for 72 h, while crude protein increased (p<0.01). In experiment 2, crude fiber and ether extract decreased from 17.10 to 12.70% and 6.18 to 5.50%, respectively. Crude protein and phytate increased from 9.58 to 12.22% and 0.84 to 1.28%, respectively. Tannin content did not differ (1.60 vs. 1.59%). Amino acid contents were improved. Nitrogen retention and metabolizable energy were augmented from 59.99 to 67.57% and from 1744 to 2717 kcal/kg, respectively. In conclusion, carrot and fruit juice wastes mixture soaking in 20% rice-hull ash filtrate for 72 h improved its nutrient quality.
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