Effect of fodder tree species with condensed tannin contents on in vitro methane production
2016
ARMIN JAVIER AYALA BURGOS | ERNESTINA GUTIERREZ VAZQUEZ | LEONARDO HERNANDEZ MEDINA | LILIANA MARQUEZ BENAVIDES | AURELIANO JUAREZ CARATACHEA | GUILLERMO SALAS RAZ | RUY ORTIZ DOMINGUEZ
The objective was to evaluate the effect of fodder tree species (FTS) with condensed tannin contents: Cordia elaeagnoides, Platymiscium lasiocarpum, Vitex mollis, and Haematoxylon brasiletto, on in vitro methane (CH4) production at 24 h post incubation. The analysis was performed using the in vitro gas production technique, with three levels of inclusion/species: 600, 800, and 1,000 mg and with 4 replicates/species/level of inclusion. The substrate was incubated at 39°C, and the gas and CH4 production were recorded at 4, 8, 12, and 24 h post incubation. The data collected was analyzed through Pearson correlation, polinomial regression and fixed effects models. There were negative correlations between FTS-total gas volume (r = –0.40; p32.7%), taking into account the total CH4 production at 24 h of the forage used as reference (Avena sativa). It´s suggested that C. elaeagnoides-according to its crude protein, neutral detergent fiber, and condensed tannins content- is the best alternative within the FTS analyzed, for feeding ruminants and for the control of CH4 emissions during the dry season.
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