In vitro evaluation of sorghum silage with increasing levels of guandu using semi-automatic gás production technique
DOI:
https://doi.org/10.22256/pubvet.v6n22.1394Keywords:
Tannins, methane, ruminal fermentation,ovineAbstract
The objective of this study was to evaluate the sorghum silage with the addition of guandu using in vitro semi automated gas production technique. Total gas production, methane production, the dry matter degradability (DMD) and organic matter (OMD) were estimated. PEG was used to measure the possible effect of tannins of sorghum silage on methane and gas production. The results indicated that the presence of PEG in the sorghum silage in the level of 25% and 50% inclusion of guandu were the highest (P < 0.05) in the gas and methane production, respectively compared with the other levels. For the gas and methane production increment, the results varied, the highest (P < 0.01) increment of gas production and methane production were found with the levels of 25% 50% inclusion of guandu, respectively. DMD and OMD increased with the increasing of pigeon pea levels with sorghum silage, these variables were greater (P< 0.01) wfhen PEG was added compared to without PEG. This evaluation of the silages showed that the presence of tannin in sorghum silage can interfere in the rumen fermentation and methane production in vitro especially identified when the substrates were incubated in the presence of PEG.
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Copyright (c) 2012 Lerner Arévalo Pinedo, Fernanda Cristina de Campos, Maria Regina Rodeiro Peçanha, Adibe Luiz Abdalla
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