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Reducing methane production by supplementation of Terminalia chebula RETZ. containing tannins and saponins
Author(s) -
Anantasook Nirawan,
Wanapat Metha,
Gunun Pongsatorn,
Cherdthong Anusorn
Publication year - 2016
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12494
Subject(s) - terminalia chebula , propionate , rumen , dry matter , fermentation , chemistry , tannin , zoology , organic matter , food science , biochemistry , biology , traditional medicine , medicine , organic chemistry
This study investigates the effects of Terminalia chebula Retz. meal supplementation on rumen fermentation and methane (CH 4 ) production by using an in vitro gas technique. The experimental design was a completely randomized design (CRD) and the dietary treatments were T. chebula supplementation at 0, 4, 8, 12, 16 and 20 mg with 0.5 g of roughage and concentrate ratio at 60:40. The results revealed that cumulative gas production (96 h of incubation) were higher ( P < 0.01) with T. chebula supplementation at 12, 16 and 20 mg than other treatments. However, in vitro dry matter degradability (IVDMD) and in vitro organic matter digestibility (IVOMD) were not significantly different among treatments ( P > 0.05). The NH 3 ‐N concentrations tended to quadratically increase with increasing levels of T. chebula in the diet. In addition, total volatile fatty acids (VFA) and propionate concentrations were increased ( P < 0.01), while acetate concentration, acetate‐to‐propionate ratio, CH 4 production and protozoal populations were decreased ( P < 0.01) when supplemented with T. chebula at 8, 12 and 16 mg, respectively. Based on this study, it could be concluded that supplementation of T. chebula at 12 mg could improve rumen fermentation by reducing CH 4 production and protozoa populations, thus improving in vitro gas production and VFA profiles.