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Articles by Nahrowi
Total Records ( 2 ) for Nahrowi
  Suharlina , Dewi Apri Astuti , Nahrowi , Anuraga Jayanegara and Luki Abdullah
  This study aimed to evaluate nutritional quality of total mixed rations containing Indigofera zollingeriana for dairy goats by using in vitro rumen fermentation technique (RUSITEC). Four rations with different levels of I. zollingeriana were tested, i.e., 20% of dry matter (R1), 40% (R2), 60% (R3) and 80% (R4). Each ration was repeated three times by following a randomized complete block design in which different batch of rumen fluid served as the block. Variables observed included chemical composition, In Vitro Dry Matter Digestibility (IVDMD) and In Vitro Organic Matter Digestibility (IVOMD), methane emission, Volatile Fatty Acid (VFA) profiles and protozoa population. Results revealed that R4 contained significantly higher crude protein content than that of R1-R3 (p<0.05). Rations containing higher proportions of I. zollingeriana (60 and 80% dry matter) had significantly higher IVDMD and IVOMD as compared to their lower proportions (20 and 40% dry matter, p<0.05). Methane concentration was lowest in ration containing the highest proportion of I. zollingeriana and it was accompanied with the lowest protozoa population. It can be concluded that higher inclusion levels of I. zollingeriana in rations improved their nutritional values while decreasing methane emission as a main greenhouse gas.
  N.A. Hartono , Nahrowi and Sumiati
  This study was conducted to investigate the relationship between starch and amino acid levels of broiler diets on growth performance and feed efficiency. In this study, 240 day old chicks were distributed into 6 treatments using a completely randomized design (CRD) with four replications. Three treatments were fed with high starch and three others were fed with low starch. Both type of diets were formulated as isocaloric with three levels of total lysine, varying from 1.34, 1.43 and 1.48% for starter period (0-18 days) and 1.18, 1.3 and 1.35% for finisher period (19-35 days). The result showed that high starch level increased body weight gain (p < 0.01) and feed intake at 35 days (p < 0.05). No interaction between starch level and amino acid level was observed for body weight gain, feed intake and feed conversion ratio at 35 days. There was no difference for blood parameter glucose. Uric acid and insulin was affected by starch and amino acid level. Significant interaction between starch level and amino acid was observed for uric acid. Ratio starch and amino acid were positively correlated with weight gain and feed consumption (r = 0.573, p < 0.05). It was concluded that feeding high starch level based on corn soya diet increased body weight gain and feed intake. Starch level has relationship with blood glucose, insulin and utilization of protein and energy in broiler.
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