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Articles by Heni Suryani
Total Records ( 3 ) for Heni Suryani
  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.
  Heni Suryani , M. Zain , R.W.S. Ningrat and N. Jamarun
  This study was conducted to determine the effect of Direct Fed Microbial (DFM) supplementation on in vitro fermentability and degradability of ammoniated palm frond. DFM’s used were Saccharomyces cerevisiae (SC), Aspergillus oryzae (AO) and Bacillus amyloliquefaciens (BA). Palm frond previously treated with 6% urea. The treatments were of, P0 = ammoniated oil palm frond, P1 = P0+SC (1% DM), P2 = P0+AO (1% DM), P3 = P0+BA (1% DM), P4 = P0+SC+AO (1% DM), P5 = P0+SC+BA (1% DM), P6 = P0+AO+BA (1% DM), P7 = P0+SC+AO+BA (1% DM). Variables measured were Dry matter (DM) and Organic matter (OM) in vitro digestibility, concentration of Ammonia (NH3), Volatile Fatty Acid (VFA) and fluid ruminal pH values as fermentability indicators. Data were analyzed using analysis of variance (ANOVA) and difference among means were tested using LSD. The results showed that the supplementation of DFM were significantly (p<0.05) increased on digestibility of DM, OM, concentration of NH3-N and VFA. The treatment had no significant effect (p>0.05) on fluid ruminal pH values. Digestibility of DM and OM increased from 47.5% (without DFM) to 51.55% (with DFM), 48.89 to 52.41%. The concentration of NH3-N and VFA increased from 12.28 to 14.28 mM and 108.35 to 125.90 mM, respectively. The rumen pH with supplementation of DFM is relatively more stable. The results showed that SC was suitable to be used single or in combination with AO or BA, but the combination of SC+BA (P5) give the best results on digestibility of DM, OM, concentration of NH3-N and VFA.
  Heni Suryani , M. Zain , R.W.S. Ningrat and N. Jamarun
  Objective: The objectives of this study were to evaluate the effect of supplementation of an ammoniated palm frond-based diet with Direct-Fed Microbials (DFM) and Virgin Coconut Oil (VCO) on the in vivo methane production, Dry Matter Intake (DMI), Organic Matter Intake (OMI), Daily Gain (ADG) and nitrogen retention of Bali beef cattle. Materials and Methods: The DFMs used in this study were Saccharomyces cerevisiae (SC) and Bacillus amyloliquefaciens (BA) and the Virgin Coconut Oil (VCO) contained 51.95% C12:0. In a pilot study, 16 male Bali cattle were assigned treatments in a randomized complete block design. Cattle were fed a basal diet containing (dry matter basis) 40% ammoniated palm frond and 60% concentrate and the treatments were: a) control, b) SC 1% DM, c) SC 0.5% DM + BA 0.5% DM and d) SC 1% DM+VCO 2% DM. Data were analysed by analysis of variance (ANOVA) and differences among means were tested using Duncan’s multiple range test (DMRT). Results: The results showed that supplementation with SC, SC+BA, SC+VCO significantly (p<0.05) reduced DMI and OMI but that the treatments were also able to increase ADG by 0.63, 0.63 and 0.71 kg day–1, respectively. Supplementation with SC+VCO increased the feed efficiency and reduced methane gas production by up to 20.63% compared to the control and nitrogen retention tended to decrease with DFM and VCO supplementation. Conclusion: These results suggest that supplementation with SC+VCO generates the best results in Bali beef cattle growth performance, methane gas production and feed efficiency.
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