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Articles by Erpomen
Total Records ( 4 ) for Erpomen
  Mardiati Zain , Jurnida Rahman , Khasrad and Erpomen
  This experiment was to study the effect of adding Saccharomyces cerevisiae and Sapindus rarak in diet Oil Palm Frond (OPF) based of nutrients digestibility and body weight gain of goats. Experimental desiegn used randomized blok design, with 4 treatments and 4 groups as replications. This experiment used six teen ettawa goats (40±8.5 kg liveweight). The four treatments were (A) native grass+concentrate (B), OPF (previously treated with 6% urea)+concentrate, (C) Diet B+1% Saccharomyces cerevisae and (D) Diet C+4% Sapindus rarak. The animals were adjusted to their treatments over a 2 week preliminary period which was followed by an 8 week experimental period. Feed intake was determined daily and live weight was measured every two week. Digestibility was measured by total faecal collection over 6 consecutive days on last week of experiment period. The results showed that the dry matter digestibility of treatment B (50.74%) were significantly lower than treatments A, C and D respectively (67.37, 62.38 and 65.71%) and supplementation of Saccharomyces cerevisiae was able to improve nutrient digestibility and body weight gain of goat, but still low compared to control (A). Addition of 4% Sapindus rarak in treatment D (123 g day–1) was able to provide digestibility and body weight gain similar to the control ration (132 g day–1). It can be concluded that the use of OPD as a substitute for grass in goat diets would give the same results with the grass when added 1% Saccharomyces cerevisiae and 4% Sapindus rarak.
  R.W.S. Ningrat , Mardiati Zain , Erpomen and Heny Suryani
  Background and Objective: Tannins have the ability to bind protein and can act to increase animal productivity by rendering protein inactive in the rumen and releasing it post-rumen for use by the animal for meat or milk production.This study was to determine the effect of supplementation of tannin from two different sources at different doses to ammoniated oil palm frond on in vitro rumen fermentation characteristics. Source of tannin is Gambier Leaves Waste (GLW) from Payakumbuh and Painan, two different districts in West Sumatera province. Doses of GLW on dry matter bases. Materials and Methods: The experiment was arranged in a block randomized design with seven treatments and three replications. The treatments were A = oil palm frond was treated with 4% urea, B1 = A+10% GLW Payakumbuh, B2 = A+ 15% GLW Payakumbuh, B3 = A+20% GLW Payakumbuh, C1 = A+10% GLW Painan, C2 = A+ 15% GLW Painan and C3 = A+20% GLW Painan. Variables measured were methane production, DM, OM, NDF and ADF digestibility, concentration of NH3-N, partial VFAs, microbial protein synthesis, population of rumen bacteria and protozoa and ruminal fluid pH. Data was analyzed using analysis of variance (ANOVA) and differences among means were tested using Duncan. Results: The results showed that the supplementation of GLW were significantly (p<0.05) increased degradability, fermentability and reduce methane gas production. The treatment had no significant effect (p>0.05) on ruminal fluid pH, propionate production and population of bacteria. The DM digestibility increased from 48.45 (Treatment A)-52.95% (Treatment B2) and OM digestibility 51.34 (Treatment A)-57.30% (Treatment B2). The concentration of VFAs increased from 71.00-95.78 mM. Molar proportion of VFAs was shifted from acetate to propionate production and reduced the ratio of acetate to propionate. The rumen pH with supplementation of tannins is relatively more stable. Methane production decreased from 27.22 (Treatment A)-12.67 mM (Treatment B2) and to 15.13 mM (Treatment C1). The methane production reduced to 53% (Treatment B2) and 45% (Treatment C1) compare control. Conclusion: These results showed that 15% GLW Payakumbuh and 10% GLW Painan was suitable to be used as doses and source of tannins but the supplementation of 15% GLW Payakumbuh give the best results on digestibility and in reducing methane gas production.
  Rusmana Wijaya Setia Ningrat , Mardiati Zain , Erpomen and Heni Suryani
  Background and Objective: Tannins have the ability to reduce methane production in ruminants, thereby increasing the efficiency of the utilization of energy and optimizing animal body weight gain. This study was conducted in order to determine the effect of supplementation of tannins from two different sources of ammoniated oil palm frond in diets based on ammoniated oil palm as a source of roughage, on the feed intake, digestibility and daily weight gain of beef cattle. The source of the tannin is gambier leaf waste (GLW) from Lima Puluh Kota and Pesisir Selatan, two districts in West Sumatra province. Materials and Methods: The study was designed using Latin Square Design (LSD). Treatment A, the control, was a complete cattle feed consisting of oil palm frond pre-treated with 6% urea+concentrate. Treatment B was Diet A+10% GLW Painan and treatment C was diet A+15% GLW Payakumbuh. Each treatment had a roughage to concentrate ratio of 50:50. Parameters measured were feed intake, nutrient digestibility, body weight gain and methane production. Results: Results showed that treatments had no significant (p>0.05) effects on intakes of dry matter and organic matter, but did have a significant effect (p<0.05) on nutrient digestibility, average daily gain and methane production. Digestibility of dry matter increased from 59.95% (treatment A) to 62.02 and 63.52% with treatments C and B, respectively. Methane production decreased from 2.48 MJ/day (treatment A) to 1.28 MJ/day and 1.26 MJ/day with treatments B and C, respectively and daily weight gain increased from 0.65-0.90 and 0.95 kg/day. Conclusion: The results showed that the supplementation of GLW increased nutrient digestibility and daily weight gain and reduced methane production. There was no significant difference between sources of GLW.
  Mardiati Zain , Jurnida Rahman , Khasrad and Erpomen
  The aim of this experiment was to study the use of palm oil by products [oil palm fronds (OPF), palm oil sludge (POS) and palm kernel cake (PKC)], that supplemented with Sapindus rarak and Sacharomyces cerevisiae on digestibility and fermentation in vitro. Oil Palm Fronds was previously treated with 3% urea. The treatments consist of 50% OPF+30% POS+20% PKC as a control diet (A), B = A+4% Sapindus rarak, C = A+0.5% Sacharomyces cerevisiae and D = A+4% Sapindus rarak+0.5% Sacharomyces cerevisiae. Digestibility of DM, OM, ADF, NDF, cellulose and rumen parameters (NH3 and VFA) of all treatments were significantly different (p<0.05). Product of fermentation and digestibility treatment A were significantly lower than treatments B, C and D. The result indicated that supplementation Sapindus rarak and Saccharomyces cerevisiae were able to improve fermentability and digestibility of palm oil by product.
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