Polyethylene Glycol Affects Goats' Feeding Behavior in a Tannin-Rich Environment

Landau, S.; Perevolotsky, Avi; Kababya, D.; Silanikove, Nissim; Nitzan, R.; Baram, H.; Provenza, Frederick D.

doi:10.2307/4004003

Cited by 23 publications

(10 citation statements)

References 19 publications

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“…Moreover, on average the PEG-supplemented goats showed better CP apparent digestibility and performance than control group. Similar results were also found by Landau et al (2002) with Damascus goats that spent more time browsing lentisk if supplemented with PEG.…”

Section: Introductionsupporting

confidence: 92%

Polyethylene glycol influences feeding behaviour of dairy goats browsing on bushland with different herbage cover

et al. 2008

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Section: Introductionsupporting

confidence: 92%

Polyethylene glycol influences feeding behaviour of dairy goats browsing on bushland with different herbage cover

et al. 2008

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“…According to the "niche theory", goats, which include a significant amount of tannin-rich browse in their diets (Kababya et al 1998;Landau et al 2002), should produce salivary tannin-binding proteins. In particular, Damascus goats, which behave more as "browsers" than Mamber goats (Glasser 2009), should produce more TBSPs.…”

Section: Discussionmentioning

confidence: 99%

“…Since tannin-rich browse is a major component of goat diets in Mediterranean shrublands (Landau et al 2002), one would expect them to produce TBSPs. Distel and Provenza (1991) did not find TBSPs in the saliva sampled from the oral cavity of goats and Lamy et al (2008) did not find TBSPs in sheep and goat parotid saliva.…”

Section: Introductionmentioning

confidence: 99%

No Major Role for Binding by Salivary Proteins as a Defense Against Dietary Tannins in Mediterranean Goats

et al. 2010

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We investigated whether Mediterranean goats use salivary tannin-binding proteins to cope with tannin-rich forages by determining the affinity of salivary or parotid gland proteins for tannic acid or quebracho tannin. Mixed saliva, sampled from the oral cavity, or parotid gland contents were compared to the intermediate affinity protein bovine serum albumin with a competitive binding assay. Goats that consume tannin-rich browse (Damascus) and goats that tend to avoid tannins (Mamber) were sequentially fed high (Pistacia lentiscus L.), low (vetch hay), or zero (wheat hay) tannin forages. Affinity of salivary proteins for tannins did not differ between goat breeds and did not respond to presence or absence of tannins in the diet. Proteins in mixed saliva had slightly higher affinity for tannins than those in parotid saliva, but neither source contained proteins with higher affinity for tannins than bovine serum albumin. Similarly, 3 months of browsing in a tannin-rich environment had little effect on the affinity of salivary proteins for tannin in adult goats of either breed. We sampled mixed saliva from young kids before they consumed forage and after 3 months of foraging in a tannin-rich environment. Before foraging, the saliva of Mamber kids had higher affinity for tannic acid (but not quebracho tannin) than the saliva of Damascus kids, but there was no difference after 3 months of exposure to tannin-rich browse, and the affinity of the proteins was always similar to the affinity of bovine serum albumin. Our results suggest there is not a major role for salivary tannin-binding proteins in goats. Different tendencies of goat breeds to consume tannin-rich browse does not appear be related to differences in salivary tannin-binding proteins.

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“…Studies with other animal species and plant genera support the value of this approach (Batu et al 1978;Murdiati et al 1990). Complex formation may be accomplished most effectively by calcium hydroxide, but activated charcoal, polyvinylpyrrolidone, and 3500 -4000 molecular -weight polyethylene glycol ( PEG) also appear to be of benefi t against dietary tannins, especially the condensed type (D'Mello 1982;Pritchard et al 1988;Kumar and Vaithiyanathan 1990;Murdiati et al 1991;Landau et al 2002;Makkar 2003). Lime water has also been used as a source of calcium but again care must be taken to avoid concentrations so high that intake is depressed (Liang 2000).…”

Section: Events Leading To Diseasementioning

confidence: 99%

Fagaceae Dumort

2012

Toxic Plants of North America

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Polyethylene Glycol Affects Goats' Feeding Behavior in a Tannin-Rich Environment

Cited by 23 publications

References 19 publications

Polyethylene glycol influences feeding behaviour of dairy goats browsing on bushland with different herbage cover

Polyethylene glycol influences feeding behaviour of dairy goats browsing on bushland with different herbage cover

No Major Role for Binding by Salivary Proteins as a Defense Against Dietary Tannins in Mediterranean Goats

Fagaceae Dumort

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