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Articles by Ana Widiana
Total Records ( 3 ) for Ana Widiana
  Ana Widiana , Taufikurahman , S.H. Limin , I. Hernaman and R. Manurung
  Gelam putih (M. cajuputi Powell) in Central Kalimantan, has not been exploited well. In vitro test conducted to evaluate the potential of gelam leaves as cattle feed. The measured variables were NH3, volatile fatty acids (VFA), dry matter Digestibility (DMD) and organic matter Digestibility (DMO). Completely randomized design was made with 5 different treatments and 4 replications, in order to get 20 experimental units. Data were analyzed by analysis of Variance (ANOVA) Followed by Duncan's multiple range test with a significance level of 5%. The results showed that the giving 100% of gelam leaves produced NH3 dan VFA for about 4.01 and 151.25 mM, also DMD and DMO by 58.35 and 52.38%. These results were significant (p<0.05), higher than the grass field, so it can be concluded that the waste of gelam leaves, potentially be used as cattle feed.
  Ana Widiana , Taufikurahman , S.H. Limin , I. Hernaman and R. Manurung
  Distillation process of M. cajuputi Powell leaves to produce cajuput oil, yields a large amount of solid residue as waste materials. In vitro testing was conducted to evaluate the potential of solid residue of M. cajuputi Powell leaves as cattle feed. The measured variables were NH3, volatile fatty acids (VFA), Dry Matter Digestibility (DMD), and Organic Matter Digestibility (DMO). Completely randomized design was made with 5 different treatments and 4 replications, in order to get 20 experimental units. Data was analyzed by analysis of variance (ANOVA), followed by Duncan's multiple range test with a significance level of 5%. The results showed that giving 100% of the solid residue of M. cajuputi Powell leaves produced VFA, DMD and DMO for about 102.25 mM, 59.75% and 42.28% respectively, but with lesser amount of NH3 (2.54mM). These results were significant (P < 0.05) and are higher than the results by using field grass. It can be concluded that the solid residue of M. cajuputi Powell leaves has the potential to be used as cattle feed.
  Robert Manurung , Riedha Melinda , Muhammad Yusuf Abduh , Ana Widiana , Irawan Sugoro and Dedi Suheryadi
  Cymbopogon winterianus (lemongrass) is a plant native to Indonesia that is able to produce essential oil as its secondary metabolite. Nevertheless, the residue of Cymbopogon after distillation to extract the essential oil is currently not being valorized. Hence, this study was conducted to evaluate the potential use of Cymbopogon residue as dairy cow feed. Results from the proximate test confirm that Cymbopogon residue nutritional content meets the requirement of Indonesian National Standard for cattle feed. In vitro test also shows good results for gas production (32.33 mL/200 mg), VFA (187 mM), NH3 production (28.65 mM), DMD (64.75%) and OMD (73.57%) content. It is also demonstrated that the use of Cymbopogon residue as feed for cows increased 23% of the milk production. Hence, this study suggests that the Cymbopogon residue has the potential to replace the conventional feed source (rice straw only) in ruminant diets.
 
 
 
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