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Articles by A. Rachmat
Total Records ( 2 ) for A. Rachmat
  Suyitman , L. Warly , A. Rachmat and Dear R. Ramadhan
  This study aims to determine the effect of refined palm leaves supplemented with mineral S and P and cassava leaves flour on cattle performance. This research is carried out starting from May 01 to September 15, 2015. Palm leaf sample, ration and feces are analyzed in Proximate and Van Soest at Ruminant Nutrition Laboratory of the Faculty of Animal Husbandry, University of Andalas, Padang. The research is an experimental study using randomized block design with 5 treatments and 4 replications. Treatment consists of: A = grass+concentrate (60:40%) as a control; B = best processed palm leaf in stage I+concentrate (60:40%); C = B+S and P mineral supplementation; D = B+cassava flour and E = C+cassava leaf flour. Data is analyzed using analysis of Variance (ANOVA). Differences between treatments were tested by Duncan's Multiple Range Test (DMRT). The results show that the treatment gave a significantly different effect on the performance of beef cattle (p<0.05). The results of the average consumption of dry matter ration ranged from 10.54 to 11.25 kg/head/day; Dry matter digestibility: 51.51 to 61.59%; body weight gain: 0.62 to 0.94 kg/head/day; ration efficiency: 5.74 to 8.36%. The results of the study can be concluded that ammoniation palm leaves supplemented with mineral S and P as well as cassava leaves flour can replace 100% grass feed of beef cattle and provide better performance than the control diet (grass) in terms of body weight gain.
  Suyitman , Lili Warly and A. Rachmat
  Background: Palm leaf is a by-product of palm plantations that can be used as a feed alternative. Ammoniation is a potential approach to increase the digestibility of palm by-products. Objective: This study aimed to determine the cassava leaf meal supplementation level as a source of branched chain amino acids for ammoniated palm leaf enriched with sulphur (S) and phosphorus (P) minerals as feed for cattle as examined in vitro . Materials and Methods: Samples of S and P mineral-enriched ammoniated palm leaf supplemented with cassava leaf meal were analyzed for proximate composition. In this study, ammoniated palm leaf samples enriched with S (0.40%) and P (0.27%) were treated with several cassava leaf meal supplementation levels. This study used a randomized block design with 6 treatments and 4 replications. The treatments tested were 6 levels of cassava leaf meal (0, 5, 10, 15, 20 and 25% dry matter). Dry matter, organic matter, crude protein, Neutral Detergent Fibre (NDF), Acid Detergent Fibre (ADF), cellulose, hemicellulose and rumen fluid characteristics (pH, VFA concentration and NH3-N level) were evaluated. Results: The results showed that mineral (0.4% S and 0.27% P) and cassava leaf meal (5% of dry matter) supplementation exhibited higher digestibility compared to other treatments. This supplementation formula resulted in the following in vitro digestibility characteristics: dry matter (55.56%), organic matter (59.83%), crude protein (55.34%), NDF (56.99%), ADF (50.01%), cellulose (60.78%) and hemicellulose (71.35%). The rumen fluid characteristics of this formula were as follows: pH (6.70), VFA (129.89 mM) and NH3-N (15.84 g/100 mL). Conclusion: Sulphur and P mineral-enriched ammoniated palm leaf supplemented with cassava leaf meal had significantly increased digestibility and rumen fluid qualities. Treatment with 5% cassava leaf meal produced the highest digestibility and rumen fluid characteristics.
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