Evaluation of tropical plants containing tannin on in vitro methanogenesis and fermentation parameters using rumen fluid
- 1 December 2009
- journal article
- research article
- Published by Wiley in Journal of the Science of Food and Agriculture
- Vol. 90 (3), 456-461
- https://doi.org/10.1002/jsfa.3839
Abstract
BACKGROUND: Methane (CH4) produced during ruminal fermentation represents a loss of 10–11% of gross energy intake. The use of browse species containing tannin as feed supplement for ruminants tends to increase in order to reduce CH4 production. The present study was conducted to evaluate some tropical plants containing tannin as feed supplement (200 g kg−1) on in vitro CH4 production and fermentation parameters. RESULTS: The crude protein (CP) content ranged from 87 to 390 g kg−1 dry matter (DM) and was highest in Sesbania grandiflora (L.) Poiret. The neutral detergent fibre (NDF) concentration was highest in Pennisetum purpureum Schumach (725 g kg−1 DM) and lowest in S. grandiflora (330 g kg−1 DM). The ranking order of plants based on their total tannin content was Acacia mangium Willd. > Biophytum petersianum Klotzch > Jatropa curcas Linnaeus > Psidium guajava Linnaeus > Phaleria papuana > Persea americana Mill. > S. grandiflora. Methane gas production after 48 h of incubation was significantly (P < 0.05) lower with inclusion of A. mangium (PP + AM), B. petersianum (PP + BP), J. curcas (PP + JC) or P. guajava (PP + PG) as compared to control feed (PP). There was negative correlation between total tannin content and CH4 production at 48 h of incubation (r = − 0.76). Concentration NH3-N was significantly (P < 0.01) higher with inclusion of S. glandiflora. Inclusion of P. guajava significantly (P < 0.05) suppressed protozoa population by 49.7% relative to control feed (PP). CONCLUSION: It was concluded that A. mangium, B. petersianum, J. curcas and P. guajava have potential to be used as a feed supplement to reduce CH4 production in ruminants. Copyright © 2009 Society of Chemical IndustryKeywords
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