Sodium Hydroxide Enhances Extractability and Analysis of Proanthocyanidins in Ensiled Sainfoin (<i>Onobrychis viciifolia</i>)

Ramsay, Aïna; Drake, Chris; Brinkhaus, A. Grosse; Girard, Marion; Copani, Giuseppe; Dohme‐Meier, F.; Bee, Giuseppe; Niderkorn, Vincent; Mueller-Harvey, Irene

doi:10.1021/acs.jafc.5b04106

Cited by 12 publications

(34 citation statements)

References 35 publications

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“…They were then analysed using the HCl–butanol method adjusted according to Grabber et al . (), using as standard a pure fraction extracted from sainfoin (Ramsay et al ., ). Samples of offered silages were analysed for DM, NDF and ADF contents by the method of Van Soest et al .…”

Section: Methodsmentioning

confidence: 97%

Silages containing bioactive forage legumes: a promising protein‐rich feed source for growing lambs

Copani

Niderkorn

Anglard

et al. 2016

Grass and Forage Science

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Forage legumes that contain secondary compounds are considered to be less susceptible to proteolysis than other legumes, with improved silage quality and possibly improved animal performance. This was investigated feeding five groups of growing lambs for 10 weeks, five silages composed of pure timothy (T; Phleum pratense), mixtures of T with red clover (Trifolium pratense; T‐RC, 50/50 on DM basis), sainfoin (Onobrychis viciifolia; T‐SF), or both (T‐RC‐SF, 50/25/25), or a mixture of the two legumes (RC‐SF). Including SF and/or RC in silages improved silage fermentation as shown by higher lactic acid and lower soluble N and NH3 contents than in T silage. Voluntary intakes were higher with all the RC‐containing silages than with T and T‐SF. The T‐SF silage had the lowest, and RC‐containing silages the highest average values for daily gain, feed conversion efficiency, live weight and carcass weight. The differing effects of these silages cannot be totally explained by differences in their nutritive value and so may be due to their bioactive compounds impacting differently on feeding motivation and digestive efficiency. These results suggest that including RC in silages is a promising strategy to combine improved animal performance with reduced environmental pressure.

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Section: Methodsmentioning

confidence: 97%

Silages containing bioactive forage legumes: a promising protein‐rich feed source for growing lambs

Copani

Niderkorn

Anglard

et al. 2016

Grass and Forage Science

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“…According to results from the HCl-butanol-acetone or thiolysis assays, fermentation can reduce "apparent" CT concentrations by 30 or 85%, respectively, in silages (Mena et al, 2015;Ramsay et al, 2015) and the gut (Desrues et al, 2017;Quijada et al, 2018). According to results from the HCl-butanol-acetone or thiolysis assays, fermentation can reduce "apparent" CT concentrations by 30 or 85%, respectively, in silages (Mena et al, 2015;Ramsay et al, 2015) and the gut (Desrues et al, 2017;Quijada et al, 2018).…”

Section: Effects Of Fermentation On Condensed Tannin Activitymentioning

confidence: 99%

“…4) and appears to increase proteinbound, and possibly covalently linked, CTs (Terrill et al, 1997;Minnée et al, 2002;Lorenz et al, 2010;Vernhet et al, 2011;Ramsay et al, 2015;Girard, 2016;Huang et al, 2016). 4) and appears to increase proteinbound, and possibly covalently linked, CTs (Terrill et al, 1997;Minnée et al, 2002;Lorenz et al, 2010;Vernhet et al, 2011;Ramsay et al, 2015;Girard, 2016;Huang et al, 2016).…”

Section: Grazing Vs Preservationmentioning

confidence: 99%

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Benefits of Condensed Tannins in Forage Legumes Fed to Ruminants: Importance of Structure, Concentration, and Diet Composition

et al. 2019

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Condensed tannins (CTs) account for up to 20% of the dry matter in forage legumes used as ruminant feeds. Beneficial animal responses to CTs have included improved growth, milk and wool production, fertility, and reduced methane emissions and ammonia volatilization from dung or urine. Most important is the ability of such forages to combat the effects of gastrointestinal parasitic nematodes. Inconsistent animal responses to CTs were initially attributed to concentration in the diet, but recent research has highlighted the importance of their molecular structures, as well as concentration, and also the composition of the diet containing the CTs. The importance of CT structural traits cannot be underestimated. Interdisciplinary research is the key to unraveling the relationships between CT traits and bioactivities and will enable future on‐farm exploitation of these natural plant compounds. Research is also needed to provide plant breeders with guidelines and screening tools to optimize CT traits, in both the forage and the whole diet. In addition, improvements are needed in the competitiveness and agronomic traits of CT‐containing legumes and our understanding of options for their inclusion in ruminant diets. Farmers need varieties that are competitive in mixed swards and have predictable bioactivities. This review covers recent results from multidisciplinary research on sainfoin (Onobrychis Mill. spp.) and provides an overview of current developments with several other tanniniferous forages. Tannin chemistry is now being linked with agronomy, plant breeding, animal nutrition, and parasitology. The past decade has yielded considerable progress but also generated more questions—an enviable consequence of new knowledge!

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“…Ramsay et al. () unsuccessfully attempted to obtain compositional information about CTs and proanthocyanidins specifically via degradation with benzyl mercaptan (thiolysis). Stringano, Gea, Salminen, and Mueller‐Harvey () proposed a single method based on high‐performance gel permeation chromatography to successfully accomplish many of the analyses done by thiolysis and other methods.…”

Section: Condensed Tanninsmentioning

confidence: 99%

Sainfoin production in western Canada: A review of agronomic potential and environmental benefits

Sheppard¹,

Cattani

Ominski

et al. 2019

Grass and Forage Science

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Sainfoin (Onobrychis viciifolia) is a forage legume of renewed interest in western Canada, with equally weighted advantages and disadvantages. In agronomic attributes, sainfoin is, at best, equal in yield, crude protein content and persistence to alfalfa (Medicago sativa). Sainfoin is equally or more palatable than alfalfa to ruminants, with comparable levels of animal productivity per unit forage consumed. The advantages it has compared to alfalfa include the following: (a) mitigation of frothy bloat; (b) reduced ammonia emissions (more faecal nitrogen (N) and less urinary N); (c) equal or better N retention by ruminants; and (d) anthelmintic protection from intestinal parasites. These advantages may be attributed to the presence of condensed tannins (CT), in legumes such as sainfoin. Emphasis on agronomic characteristics in breeding programmes appears to have led to the inadvertent reduction in the efficacy of CT characteristics. Persistence of sainfoin appears to be dependent on minimal pressure from competing plants, harvest or grazing, and good growth conditions from mid‐summer into fall, allowing for adequate root reserves for survival. It is possible that judicious use of glyphosate in late season might lessen competition in that critical period as sainfoin is more glyphosate‐tolerant than alfalfa. Otherwise, sainfoin may be best considered a short‐lived forage and best adapted for early season harvest or grazing to eliminate the risk of bloat.

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Sodium Hydroxide Enhances Extractability and Analysis of Proanthocyanidins in Ensiled Sainfoin (Onobrychis viciifolia)

Cited by 12 publications

References 35 publications

Silages containing bioactive forage legumes: a promising protein‐rich feed source for growing lambs

Silages containing bioactive forage legumes: a promising protein‐rich feed source for growing lambs

Benefits of Condensed Tannins in Forage Legumes Fed to Ruminants: Importance of Structure, Concentration, and Diet Composition

Sainfoin production in western Canada: A review of agronomic potential and environmental benefits

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