Benefit from the association of small amounts of tannin-rich shrub foliage (Acacia cyanophylla Lindl.) with soya bean meal given as supplements to Barbarine sheep fed on oaten hay

Salem, H. Ben; Makkar, H.P.S.; Nefzaoui, A.; Hassayoun, L.; Abidi, Sahar

doi:10.1016/j.anifeedsci.2005.04.012

Cited by 46 publications

(27 citation statements)

References 24 publications

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“…Probably, formation of tannin-protein complexes in the rumen led to reduction in ruminal protein degradation and ruminal NH 3 -N concentration and subsequently reduced ammonia transfer into the blood for the conversion to urea in the liver (West et al, 1993). These results are in accordance with West et al (1993), Silanikove et al (1996) and Ben Salem et al (2005). Increment in ruminal NH 3 -N and serum urea N by supplemented PEG probably were a result of the PEG action to bind with tannins and reduced the formation of tanninprotein complexes (Makkar, 2003).…”

Section: Discussionsupporting

confidence: 92%

“…Besides, increase in NH 3 -N from 5.27 to 12.45 mg/dl (data not shown), both higher NPN (fraction A) and lower tannins in urea treated PBS compared with untreated PBS (Table 1) would also resulted in higher ruminal NH 3 -N concentration in cows fed PBSþurea diet. Inactivation of tannins by urea addition during anaerobic storage might be due to their polymerization to higher inert polymers (Makkar and Singh, 1993) or may be due to oxidation of tannins (Ben Salem et al, 2005). Makkar and Singh (1993) reported that 4% urea addition to tannin rich leaves of oak and then storage for 10 day decreased 100% of condensed tannin.…”

Section: Discussionmentioning

confidence: 98%

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Effect of feeding pistachio by-products silage supplemented with polyethylene glycol and urea on Holstein dairy cows performance in early lactation

et al. 2012

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 98%

Effect of feeding pistachio by-products silage supplemented with polyethylene glycol and urea on Holstein dairy cows performance in early lactation

et al. 2012

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“…In case of usage of more than 5% condensed tannin in dry matter content of the grain, proteins are excreted in the faeces without being absorbed in the intestines due to the formation of excessive levels of tannin-protein complex; therefore it could reduce the protein utilization of ruminant animals (Kumar & Singh 1984). Ensiling of high tannin-containing feed materials can lower tannin content as a result of oxidation of phenolic compounds during ensiling process (Ben Salem et al 2005). Usage of 2.0-4.5% of condensed tannin in the ration dry matter increased milk production (Wang et al 1996) and milk protein levels (Bhatta et al 2000).…”

Section: Introductionmentioning

confidence: 99%

The effects of dried pistachio (Pistachio veraL.) by-product addition on corn silage fermentation andin vitromethane production

Denek

Aydin

Can

2016

Journal of Applied Animal Research

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The objective of this study was to determine the effect of adding different levels of pistachio by-product (PB) on the fermentation quality, nutritive value and in vitro methane (CH 4 ) production of corn silage. For this purpose, silages were prepared in the 1.5 l glass jars by adding with 2%, 4%, 6%, 8% and 10% pistachio PB (as a dry matter basis). The results showed that addition of 6%, 8% and 10% pistachio PB levels decreased (P < 0.05) silage acetic acid content. Increment of pistachio PB level increased (P < 0.05) silage propionic acid content, but it decreased (P < 0.05) ammonia nitrogen values. Addition of all levels of pistachio PB decreased (P < 0.05) gas production (from 251.70 to 196.76 ml/g dry matter (DM)), in vitro organic matter digestibility (from 70.26% to 61.62%) and metabolizable energy (from 9.69% to 8.27 MJ/kg DM) values. Similarly, increment-level pistachio PB decreased (P < 0.05) of in vitro methane production level. As a result, pistachio PB might have a potential usage value as silage additive when undesired ruminal methane production is aimed to be suppressed by ruminant. ARTICLE HISTORY

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“…, 2008). Finally, by binding to protein, tannins may alleviate malaise because of high concentrations of non‐protein nitrogen which is rapidly converted to ammonia in plants like BFT (Ben Salem et al. , 2005).…”

Section: Discussionmentioning

confidence: 99%

Preference for diverse pastures by sheep in response to intraruminal administrations of tannins, saponins and alkaloids

Villalba

Provenza

Clemensen

et al. 2011

Grass and Forage Science

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Plant secondary compounds (PSC) are increasingly recognized as important in animal health, welfare and nutrition, yet little is known about possible complementarities among forages that contain PSC. This study explored how sheep modify their foraging behaviour in pastures containing four forages with different PSC when challenged with intraruminal administration of a single PSC. Six pairs of lambs received a dose of a single PSC in three successive periods (1 -Condensed tannins, 2 -Saponins, and 3 -Ergotamine) of 5 d each. Six other pairs of lambs received just the vehicle. After the earlymorning dosing, lambs were allowed to graze a choice of: 1 -Lotus corniculatus [birdsfoot trefoil (BFT)], 2 -Medicago sativa [alfalfa (AA)], 3 -Festuca arundinacea [endophyte-infected tall fescue (TF)], high in tannins, saponins and alkaloids, respectively, and 4 -Dactylis glomerata [orchard grass (OG)]. The foraging behaviour of lambs was recorded at 1-min intervals (scans). Lambs dosed with tannins had more scans than Controls on BFT (P = 0AE002) and TF (P = 0AE004). Lambs dosed with saponins had more scans than Controls on TF (P = 0AE01), and animals treated with ergotamine had more scans than Controls on BFT (P = 0AE03). Lambs showed the lowest proportion of scans on AA after a dose of saponin (P £ 0AE09) and on TF after a dose of ergotamine (P £ 0AE009). Thus, lambs minimized the negative impacts of PSC through changes in their foraging behaviour by avoiding over-ingesting any one PSC and by selectively increasing the preference for complementary PSC-containing forages.

show abstract

Benefit from the association of small amounts of tannin-rich shrub foliage (Acacia cyanophylla Lindl.) with soya bean meal given as supplements to Barbarine sheep fed on oaten hay

Cited by 46 publications

References 24 publications

Effect of feeding pistachio by-products silage supplemented with polyethylene glycol and urea on Holstein dairy cows performance in early lactation

Effect of feeding pistachio by-products silage supplemented with polyethylene glycol and urea on Holstein dairy cows performance in early lactation

The effects of dried pistachio (Pistachio veraL.) by-product addition on corn silage fermentation andin vitromethane production

Preference for diverse pastures by sheep in response to intraruminal administrations of tannins, saponins and alkaloids

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