Publications by authors named "M Rira"
Article Synopsis
- - The study investigates how condensed tannins in tropical plants affect rumen degradation and microbial colonization, focusing on both free and bound fractions through experiments with dairy cows and lab techniques.
- - Plants tested, including Calliandra calothyrsus and Acacia nilotica, contained high tannin levels, with significant portions bound to proteins; free tannins disappeared quickly, while the disappearance rate of protein-bound tannins varied widely among plants.
- - Results showed that the presence of tannins impacted microbial colonization in the rumen, with unique bacterial and archaeal communities forming around different plant types during incubation.
Article Synopsis
- The study examined how Acacia nilotica, a tropical plant with hydrolyzable tannins, affects rumen fermentation and methane production in sheep, using both leaves and pods of the plant.
- Various combinations and proportions of A. nilotica and other tannin-rich plants were tested via in vitro incubations to analyze their impact on methane emissions and fermentation efficiency.
- Results showed that incorporating A. nilotica significantly reduced methane production (up to 64%) while also decreasing volatile fatty acid production, highlighting the potential of this plant for improving feed efficiency in livestock.
Potential of tannin-rich plants, Leucaena leucocephala, Glyricidia sepium and Manihot esculenta, to reduce enteric methane emissions in sheep.
J Anim Physiol Anim Nutr (Berl)
December 2016
Article Synopsis
- A study was conducted using sheep to evaluate how three tropical tannin-rich plants (Glyricidia sepium, Leucaena leucocephala, and Manihot esculenta) affect methane emissions, food intake, and digestibility.
- The trial showed that animals fed with these plants had higher daily organic matter intake compared to those on a grass-only diet, but overall digestibility remained unchanged.
- Notably, methane emissions were significantly lower when sheep consumed L. leucocephala and M. esculenta, suggesting that these plants could help reduce methane production in ruminants.
The objective of this work was to study nutritional strategies for decreasing methane production by ruminants fed tropical diets, combining in vitro and in vivo methods. The in vitro approach was used to evaluate the dose effect of condensed tannins (CT) contained in leaves of Gliricidia sepium, Leucaena leucocephala, and Manihot esculenta (39, 75, and 92 g CT/kg DM, respectively) on methane production and ruminal fermentation characteristics. Tannin-rich plants (TRP) were incubated for 24 h alone or mixed with a natural grassland hay based on Dichanthium spp.
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