Influence of Tannins on the Nutritive Value of Soybean Meal for Ruminants1

Driedger, A.; Hatfield, E. E.

doi:10.2527/jas1972.343465x

Cited by 78 publications

(24 citation statements)

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“…ANOVA results suggested that the contents of phytic acid of glyphosate-tolerant soybeans and Chinese conventional soybeans had no significant difference (p > 0.05) in range of 1.02 to 1.20 g/ 100 g. Tannin was also considered as an antinutrient for its complex formation with proteins, carbohydrates and enzyme etc. and thus affected the adsorption of these nutrients for human health (Driedger & Hatfield, 1972). The tannin content of glyphosate-tolerant soybeans was 1.95 g/100 g for G1 and 1.76 g/100 g for G2, which decreased at 32-51% compared to Chinese conventional soybeans.…”

Section: Comparison Of Typical Components Of Soybean Varietiesmentioning

confidence: 96%

Compositional study of different soybean (Glycine max L.) varieties by 1H NMR spectroscopy, chromatographic and spectrometric techniques

Jiao¹,

Xiao²,

Zhang³

et al. 2012

Food Chemistry

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Section: Comparison Of Typical Components Of Soybean Varietiesmentioning

confidence: 96%

Compositional study of different soybean (Glycine max L.) varieties by 1H NMR spectroscopy, chromatographic and spectrometric techniques

Jiao¹,

Xiao²,

Zhang³

et al. 2012

Food Chemistry

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“…2) resulted in reduced proteolysis in the rumen and improved daily weight gains, feed efficiencies and N balances in lambs. 81 Low doses of chestnut tannins significantly reduced ammonia in an in vitro Rusitec fermentation system; 50 they also enhanced (by 5%) non-ammonia N flow to the duodenum in growing bulls (Bos taurus L.) and resulted in higher apparent intestinal protein digestion. 82 However, 21 g chestnut tannins kg −1 added to soybean meal produced no significant effect on voluntary intake, feed conversion, daily gain or length of fattening period when lambs were finished from 15 to 25 kg.…”

Section: Effects Of Added Tannins or Tannin-rich Supplementsmentioning

confidence: 99%

Unravelling the conundrum of tannins in animal nutrition and health

2006

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This paper examines the nutritional and veterinary effects of tannins on ruminants and makes some comparisons with non-ruminants. Tannin chemistry per se is not covered and readers are referred to several excellent reviews instead: (a) Okuda T et al. Heterocycles 30:1195-1218 (1990); (b) Ferreira D and Slade D. Nat Prod Rep 19:517-541 (2002); (c) Yoshida T et al. In Studies in Natural Product Chemistry. Elsevier Science, Amsterdam, pp. 395-453 (2000); (d) Khanbabaee K and van Ree T. Nat Prod Rep 18:641-649 (2001); (e) Okuda et al. Phytochemistry 55:513-529 (2000). The effects of tannins on rumen micro-organisms are also not reviewed, as these have been addressed by others: (a) McSweeney CS et al. Anim Feed Sci Technol 91:83-93 (2001); (b) Smith AH and Mackie RI. Appl Environ Microbiol 70:1104-1115 (2004). This paper deals first with the nutritional effects of tannins in animal feeds, their qualitative and quantitative diversity, and the implications of tannin-protein complexation. It then summarises the known physiological and harmful effects and discusses the equivocal evidence of the bioavailability of tannins. Issues concerning tannin metabolism and systemic effects are also considered.Opportunities are presented on how to treat feeds with high tannin contents, and some lesser-known but successful feeding strategies are highlighted. Recent research has explored the use of tannins for preventing animal deaths from bloat, for reducing intestinal parasites and for lowering gaseous ammonia and methane emissions. Finally, several tannin assays and a hypothesis are discussed that merit further investigation in order to assess their suitability for predicting animal responses. The aim is to provoke discussion and spur readers into new approaches. An attempt is made to synthesise the emerging information for relating tannin structures with their activities. Although many plants with high levels of tannins produce negative effects and require treatments, others are very useful animal feeds. Our ability to predict whether tannin-containing feeds confer positive or negative effects will depend on interdisciplinary research between animal nutritionists and plant chemists. The elucidation of tannin structure-activity relationships presents exciting opportunities for future feeding strategies that will benefit ruminants and the environment within the contexts of extensive, semi-intensive and some intensive agricultural systems.

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“…The use of hydrolysable tannins to reduce rumen protein degradability is less 210 C. Poncet, D. Rémond [10], beyond this level, the effect of tannin addition was less effective. Furthermore, above the dose of 100 g of tannins per kg of SBM, intestinal digestion was decreased.…”

Section: Effects Of Tanninsmentioning

confidence: 99%

Rumen digestion and intestinal nutrient flows in sheep consuming pea seeds: the effect of extrusion or chestnut tannin addition

Poncet

Rémond

2002

Anim. Res.

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-Different treatments aimed at reducing rumen degradability of pea protein were evaluated by in situ and in vivo measurements of rumen and intestine digestion of proteins. Four fistulated sheep were used. Pea seed provided 50% of dietary crude protein (CP) and was used raw (RP), with chestnut tannin (RPT2, 20 g·kg -1 of pea CP; RPT3, 30 g·kg -1 of pea CP), and extruded (EP). Rumen in situ degradability of pea protein was decreased by extrusion (83.3% vs. 90.8%) but was not affected by tannin addition. In vivo tannin addition did not affect the organic matter (OM) and N apparent digestibility, at the level of the rumen, the intestine or the whole tract. Extrusion decreased the apparent digestion of OM in the rumen but increased it in the small intestine. Total tract OM digestibility was not affected. Duodenal flow of non-ammonia N (NAN) increased by 27% between the RP and EP diet. This increase was mainly related to an increase in non-microbial N flow. Small intestine NAN apparent digestibility was not affected by extrusion and the amount of NAN apparently digested in the small intestine increased by 23% between the RP and EP diet. A slight decrease in total tract N digestibility was observed with extrusion. The efficiency of microbial protein synthesis was increased by extrusion. Small intestine apparent digestion of amino acids was greater for EP than for RP, but the profile of apparently absorbed amino acids was not affected. This study showed that low doses of tannins (up to 30 g·kg -1 of pea CP, 15 g·kg -1 of dietary CP) were inefficient in decreasing protein rumen degradability, however, the extrusion treatment largely increased the nitrogenous value of the pea seeds. dégradabilité ruminale des protéines du pois a été évalué par des mesures in situ et in vivo de la digestion ruminale et intestinale. Quatre moutons fistulés ont été utilisés. La graine de pois constituait 50 % de la matière azotée totale (MAT) de la ration. Le pois a été distribué cru (RP), avec des tannins de châtaignier (RPT2, 2 % de la MAT du pois ; RPT3, 3 % de la MAT du pois) ou extrudé. La dégra-dabilité théorique du pois a diminué sous l'effet du traitement d'extrusion (83,3 % vs. 90,8 %), mais n'a pas été affectée par l'ajout de tannins. In vivo, l'addition de tannin n'a eu aucun effet sur les paramètres de la digestion de la matière organique (MO) et de l'N. L'extrusion a diminué la digestion apparente de la MO dans le rumen, mais celle-ci a augmenté dans l'intestin grêle. Ainsi la digestibilité de la MO dans l'ensemble du tube digestif n'a pas été modifiée. Le flux duodénal de NAN a augmenté de 27 % entre les régimes RP et EP. Cette augmentation s'explique essentiellement par une augmentation du flux de NAN non-microbien. La digestibilité intestinale apparente n'a pas été modifiée par l'extrusion et la quantité de NAN apparemment digérée dans l'intestin grêle a augmenté de 23 % entre les régimes RP et EP. Une légère diminution de la digestibilité totale de l'N a été observée avec le traitement d'extrusion. L'efficacité de l...

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Influence of Tannins on the Nutritive Value of Soybean Meal for Ruminants1

Cited by 78 publications

References 0 publications

Compositional study of different soybean (Glycine max L.) varieties by 1H NMR spectroscopy, chromatographic and spectrometric techniques

Compositional study of different soybean (Glycine max L.) varieties by 1H NMR spectroscopy, chromatographic and spectrometric techniques

Unravelling the conundrum of tannins in animal nutrition and health

Rumen digestion and intestinal nutrient flows in sheep consuming pea seeds: the effect of extrusion or chestnut tannin addition

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