Effect of molecular weight of condensed tannins from warm-season perennial legumes on ruminal methane production in vitro

Naumann, H. D.; Tedeschi, L. O.; Muir, James P.; Lambert, B.D.; Kothmann, M.M.

doi:10.1016/j.bse.2013.03.050

Cited by 40 publications

(37 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A diverse group of legume species with varying types of CT inhibited CH 4 production in vitro (Naumann et al, 2013b). However, when these CTcontaining legumes were fermented as the sole source of forage, they also inhibited total gas production and VFA production, indicating an inhibition of digestibility.…”

Section: Ct-enteric Fermentation Interactionsmentioning

confidence: 99%

“…However, there may be other metabolites that go unmeasured that are responsible for the observed response. For example, Acacia angustissima is a legume that produces a moderate concentration of CT (7-9% DM) and suppresses ruminal methane production (Naumann et al, 2013b), binds protein (Naumann et al, 2014b), and inhibits larval migration of L3 Haemonchus contortus (Naumann et al, 2014a). Condensed tannins may be the only one, of the many plant specialized metabolites found in A. angustissima, affecting these responses (McSweeney et al, 2008).…”

Section: The Anti-nutritional Effect Of Condensed Tanninsmentioning

confidence: 99%

“…Naumann et al (2013b) evaluated the relationships among CT, VFA, and enteric CH 4 production. A decrease in the acetate:propionate ratio resulting from an increased use of hydrogen for propionate formation may be related to the inhibition of CH 4 production by CT.…”

Section: Ct-enteric Fermentation Interactionsmentioning

confidence: 99%

See 2 more Smart Citations

The role of condensed tannins in ruminant animal production: advances, limitations and future directions

et al. 2017

Self Cite

View full text Add to dashboard Cite

-Tannins represent one of the most abundant polyphenolic compounds in plants. Tannins exist as a multitude of chemically unique entities in nature. The most commonly occurring tannins are typically divided into two major classes based on chemical structure: hydrolysable (HT) or condensed tannins (CT). Hydrolysable tannins are esters of gallic or ellagic acid linked to a polyol core, typically glucose. Condensed tannins or proanthocyanidins consist of flavan-3-ol subunits linked together to form oligomers and polymers. Both HT and CT are defined as astringent, medium-to-high-molecular weight polyphenolic compounds that characteristically bind and precipitate soluble proteins. The objective of this paper was to present recent advances in CT-ruminant interactions, the limitations associated with understanding and using CT in ruminant animal production, and future needs for research to further advance our knowledge of the role of CT in optimization of ruminant animal production. Condensed tannins pose some anti-nutritional problems to ruminants due to their astringent property that reduces feed intake and, consequently, animal performance. Ruminants can, however, tolerate CT by slowly adapting the ruminal microbes to the toxic effects of CT and by releasing CT-binding salivary proteins. The protein-binding ability of CT has some benefits to the ruminant due to complexes formed with essential amino acids, preventing their degradation in the rumen, but releasing them in the lower gut for absorption by the animal. Recent data have suggested increased N retention when CT is given to growing animals. There are potential benefits of using CT and HT for anthelmintic purposes due to their ability to inhibit egg hatching and larval motility of gastrointestinal nematode parasites, especially in small ruminants. Condensed tannins also bind to minerals (Al, Ca, Co, Cu, Fe, Mg, Mn, P, and Zn). Although studies with ruminants have been contradictory, it has been reported that because the CT-metal ion complex is stable over a wide pH range, CT may reduce the bioavailability of minerals. Methane mitigation by feeding CT might be the most impactful benefit for ruminant production. Many empirical equations have been developed to predict ruminal methane emissions, but very few have included CT. Future research should focus on the improvement of methodology to assess CT biological activity, interaction with other plant-specialized metabolites, and associated physiological and nutritional impacts on ruminants.

show abstract

Section: Ct-enteric Fermentation Interactionsmentioning

confidence: 99%

Section: The Anti-nutritional Effect Of Condensed Tanninsmentioning

confidence: 99%

See 1 more Smart Citation

The role of condensed tannins in ruminant animal production: advances, limitations and future directions

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…La variación del efecto de los TC es inconsistente y depende del tipo de TC, su estructura, su peso molecular, la dosis, la fuente y la especie animal utilizada (23,24) ; en este sentido, se ha documentado que los pequeños rumiantes son capaces de desactivar a los TC (19) evitando la reducción de la población de protozoarios responsables de la degradación de la fibra hasta del 50 % (25) , además de evitar la formación de complejos entre carbohidratos y proteínas, lo cual reduciría la digestibilidad de los componentes de la ración.…”

Section: Digestibilidad Aparenteunclassified

Emisión de metano en ovinos alimentados con Pennisetum purpureum y árboles que contienen taninos condensados

Piñeiro-Vázquez

Canúl-Solís

Casanova‐Lugo

et al. 2017

Rev. Mex. Cienc. Pecu.

View full text Add to dashboard Cite

Emisión de metano en ovinos alimentados con RESUMENEl objetivo fue evaluar el efecto de los taninos condensados (TC) contenidos en el follaje de arbóreas tropicales, sobre el consumo de materia seca y orgánica (CMS, CMO), la digestibilidad de la materia seca (DMS) y emisiones de metano (CH4) en ovinos alimentados con una ración basal de pasto Pennisetum purpureum. Cuatro ovinos de pelo con un peso vivo promedio de 21.6±2.0 kg se sometieron a cuatro tratamientos en un diseño cuadro latino 4 x 4. Los tratamientos fueron P. purpureum (PP), P. purpureum + Havardia albicans (PPHA), P. purpureum + Bursera sim aruba (PPBS), y P . purpureum + Acacia pennatula (PPAP); el follaje de las arbóreas se incluyó en 300 g/kg de MS de la ración. El consumo, la digestibilidad y la producción total de metano entérico se midieron por periodos de 23 h. La producción de metano se midió en cajas de respiración de circuito abierto. El consumo y digestibilidad de la MS y materia orgánica (MO) entre los tratamientos PP, PPHA, PPBS y PPAP no se afectaron por la inclusión de los follajes de arbóreas en la ración (P>0.05). Cuando la producción de CH4 se expresó en L/kg del CMS, CMO o consumo de fibra detergente neutro los resultados fueron similares entre tratamientos (PP, PPHA, PPBS y PPAP) (P >0.05). Se concluye que los TC contenidos en el follaje de Havardia albicans, Acacia pennatula y Bursera sim aruba no afectaron las emisiones de CH4 al nivel de incorporación de 30 % de la MS; tampoco se observaron efectos en el CMS, CMO, DMS y concentración molar de ácidos grasos volátiles. PALABRAS CLAVE: Arboles tropicales, Metano, Ovinos de pelo, Taninos condensados, Ácidos grasos volátiles. ABSTRACTThe aim of the work was to evaluate the effect of condensed tannins (CT) containing in the foliage's on dry matter intake and organic matter (DMI and OMI), dry matter digestibility (DMD) and methane (CH4) emissions in sheep fed a basal ration of Pennisetum purpureum grass. Four hair sheep with an average live weight of 21.6±2.0 kg were allotted to four treatments in a 4 x 4 latin square design. The treatments were P. purpureum (PP), P. purpureum + Havardia albicans (PPHA), P. purpureum + Bursera sim aruba (PPBS), and purpureum + Acacia pennatula (PPAP), the foliage of tree was included 300 g/kg DM of the ration. Intake, digestibility of DM and total methane emissions (L/d) were recorded for periods of 23 h when sheep were housed in open-circuit respiration head boxes. Intake and digestibility of the dry matter (DM) and organic matter (OM) between treatments PP, PPHA, PPBS and PPAP, were not affected by inclusion the foliage's of trees in the ration (P>0.05). When the production of methane was expressed in L/kg of DMI, OMI or neutral detergent fiber intake, the results were similar between treatments (PP, PPHA, PPBS, PPAP) (P >0.05). It is concluded that CT contained in the foliage of Havardia albicans, Acacia pennatula y Bursera sim aruba not affected the CH4 emissions an levels of incorporation as 30 % of ration DM, since there are no effects on DMI, ...

show abstract

“…Recently, an in vitro study has suggested the CT concentration by itself may not be a reliable predictor of the CT biological activity relative to the reduction of CH 4 production (Naumann et al, 2013b). Therefore, other aspects of CT need to be considered.…”

Section: Integration Of Mechanisms Of Action Of Ctmentioning

confidence: 99%

Developing a conceptual model of possible benefits of condensed tannins for ruminant production

Tedeschi

Ramírez-Restrepo

Muir

2014

animal

View full text Add to dashboard Cite

Enteric methane (CH 4 ) emissions from ruminants have compelled a wide range of research initiatives to identify environmental abatement opportunities. However, although such mitigations can theoretically be attained with feed additives and feeding strategies, the limited empirical evidence on plant extracts used as feed additives does not support extensive or long-term reductions. Nevertheless, their strategic use (i.e. alone or combined in a simultaneous or consecutive use) may provide not only acceptable CH 4 abatement levels, but also relevant effects on animal physiology and productivity. Condensed tannins (CT) represent a range of polyphenolic compounds of flavan-3-ol units present in some forage species that can also be added to prepared diets. Methods to determine CT, or their conjugated metabolites, are not simple. Although there are limitations and uncertainties about the methods to be applied, CT are thought to reduce CH 4 production (1) indirectly by binding to the dietary fibre and/or reducing the rumen digestion and digestibility of the fibre and (2) directly by inhibiting the growth of rumen methanogens. On the basis of their role in livestock nutrition, CT influence the digestion of protein in the rumen because of their affinity for proteins (e.g. oxidative coupling and H bonding at neutral pH) that causes the CT-protein complex to be insoluble in the rumen; and dissociate in the abomasum at pH 2.5 to 3.0 for proteolysis and absorption in the small intestine. CT may also reduce gastro-intestinal parasite burdens and improve reproductive performance, foetal development, immune system response, hormone serum concentrations, wool production and lactation. The objectives of this paper are to discuss some of the beneficial and detrimental effects of CT on ruminant production systems and to develop a conceptual model to illustrate these metabolic relationships in terms of systemic physiology using earlier investigations with the CT-containing legume Lotus corniculatus. Our conceptual model indicated four complex and long-lasting relationships (digestive, toxicological, physiological and morphological) that can alter the normal biology of the animal. These relationships are interdependent, integrative, and sometimes, complementary to each other. This conceptual model can be used to develop mechanistic models to improve the understanding of the interaction between CT and the ruminants as well as to guide research initiatives of the impact of polyphenol-rich foods on human health.Keywords: condensed tannins, methane, modelling, physiology, ruminant ImplicationsThis paper reviews potential benefits of condensed tannins (CT), including mitigation of methane emission (a potent greenhouse gas), reduction of ruminal degradation of amino acids and reduction of gastro-intestinal parasitic infestation among many other benefits to cattle, sheep and goats; and proposes a conceptual model to understand the interrelationships of the mechanisms of action of these benefits within the animal. Our conceptual model lays t...

show abstract

Effect of molecular weight of condensed tannins from warm-season perennial legumes on ruminal methane production in vitro

Cited by 40 publications

References 29 publications

The role of condensed tannins in ruminant animal production: advances, limitations and future directions

The role of condensed tannins in ruminant animal production: advances, limitations and future directions

Emisión de metano en ovinos alimentados con Pennisetum purpureum y árboles que contienen taninos condensados

Developing a conceptual model of possible benefits of condensed tannins for ruminant production

Contact Info

Product

Resources

About