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[en] Agro-wastes such as sugar cane straw are potential sources as feed. Sugar cane straw contains tannins, an anti-nutrient, which could effect feed quality. The effect of tannins by in vitro gas production was compared to maize straw which has low tannins. Tannin concentration was measured by using PEG which is labelled by 14C. The result showed that the tannins concentration of sugar cane straw is 10.88 % dry matter. The others are digestibility of dry matter and organic matter, VFA, ammonia and pH. The gas production is 48.83 ml/500 mg after 24 h incubation. It is lower than the control i.e. 100.64 ml/500 mg. Additional PEG increase the gas production i.e. 30.5 %, because tannins is bounded by it. The concentration of ammonia, VFA, dry matter and organic matter digestibility on sugar cane straw with additional PEG is higher than without PEG, i.e 28.29 mg/100 ml, 15.56 nmol/100 ml, 52.18 % and 47.54 %. pH of sugar cane without PEG i.e. 6.62 is higher than additional PEG, i.e. 6.54. It could be concluded, tannins decrease of gas production, ammonia, VFA, dry matter, and organic matter digestibility and additional PEG increase gas production of sugar cane. (author)
Source
Singgih Sutrisno; Sofyan Yatim; Pattiradjawane, EIsje L.; Ismachin, Moch; Mugiono; Marga Utama (National Nuclear Energy Agency, Jakarta (Indonesia)) (eds.); Nelly Dhevita Leswara; Umar Mansur (University of Indonesia, Jakarta (Indonesia)) (eds.); Syamsul Arifin Achmad (Bandung Institute of Technology, Bandung (Indonesia)); Komaruddin Idris (Bogor Agricultural University, Bogor (Indonesia)) (and others); Centre for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency (Indonesia); 323 p; ISBN 979-3558-03-2; 
; Feb 2004; p. 153-156; The Scientific Meeting on Research and Development of Isotopes Application and Radiation; Seminar Ilmiah Penelitian dan Pengembangan Aplikasi Isotop dan Radiasi; Jakarta (Indonesia); 17-18 Feb 2004; Also available from Center for Development of Nuclear Informatics, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); 6 refs.; 2 tabs.
; Feb 2004; p. 153-156; The Scientific Meeting on Research and Development of Isotopes Application and Radiation; Seminar Ilmiah Penelitian dan Pengembangan Aplikasi Isotop dan Radiasi; Jakarta (Indonesia); 17-18 Feb 2004; Also available from Center for Development of Nuclear Informatics, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); 6 refs.; 2 tabs.