In Vitro Rumen Degradation of Selected Tropical Legumes In Sounth Sumatra, Indonesia

Fariani, Armina and Warly , lili (2010) In Vitro Rumen Degradation of Selected Tropical Legumes In Sounth Sumatra, Indonesia. WASET 2010 Program. Conference Proceedings.

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                      Abstract

                      This experiment was conducted to evaluate the chemical composition, rumen degradability and in vitro gas production of five selected tropical legumes, namely Lablab purpureus, Centrosema pubescens, Leucaena leucepala, Desmanthus virgatus and Flemingia macrophylla. These garsses were grown under the same management and harvested at the first cutting period. Rumen degradability of dry matter and fiber components (NDF, ADF and Cellullose) were determined by in vitro techniques at 12, 24, 36, 48, 72 hours incubation periods. Gas production were measured on each incubation times. Degradation kinetics were calculated by fitting the degration values to the exponential equation p = a + b (1-e –ct). in vitro gas production of the legumes was measured at the same time with in vitro incubation periods and the characteristics of gas production were determined using the equation p = b (1-e –ct). data on chemical composition showed that Centrocema pubecens contained highest crude protein (22.0%), while the lowest value was noted for Lablab purpureus (18.9%). NDF content ranged from 29.4% (Lablab purpureus) to 63.2% (Desmanthus virgatus), ADF from 14.8% (Lablab purpureus) to 42.0% (Desmanthus virgatus) and lignin content varied from 3.6% (Leucaena leucepala) to 6.3% (Desmanthus virgatus). In vitro rumen dry matter degradability and fiber fractions were varied among species. These findings were also consistent with the result of in vitro gas production, in which Leucaena leucepala producted the highest gas fermentation (20.37 ml/200 mg DM) followed by Centrosema pubescens (10.04 ml/ 200 mg). based on these findings, it could be concluded that Leucaena leucepala followed Centrosema pubescens had higher nutritive value compared to the other observed legumes. Key words: Tropical legumes, in vitro digestion, gas production

                      Item Type: Article
                      Subjects: S Agriculture > SF Animal culture
                      Divisions: Faculty of Agriculture > Department of Animal Science
                      Depositing User: armina fariani
                      Date Deposited: 12 Jun 2015 09:06
                      Last Modified: 12 Jun 2015 09:06
                      URI: http://eprints.unsri.ac.id/id/eprint/5445

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