2010
DOI: 10.1016/j.livsci.2010.06.136
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Effect of whole acorns (Quercus pubescens) shred based diet on parotid gland in growing pigs in relation to tannins

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Cited by 24 publications
(32 citation statements)
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“…As reported in literature, common characteristics of proteins and polypeptides with high affinity for tannins are their open loose structure, a high proline content and small size [46,52,53]. The capability of some animal species to counteract high dietary tannins was seen to be linked to salivary proline rich proteins (PRPs) ancestral function in the maintenance of oral health at a basal level of mucoproteins secretion, increased by high tannins presence in the diet [54], as observed in pigs [55], in which an increase up to a 16.8% of proline/crude protein ratio of parotid glands chemical composition was seen (Figure 1) after the inclusion of a 70% of acorns in the diet, providing high amounts of hydrolizable tannins (36.1 g TAE·kg -1 DM, expressed as tannic acid equivalents). Clauss, et al (2005) [56] refer that from carnivores through omnivores to exclusive plant-eaters, the dietary nitrogen level is progressively reduced while the presence of dietary tannins increases.…”
Section: Salivary Tannins Binding Proteins: the Role Of Proline Rich mentioning
confidence: 71%
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“…As reported in literature, common characteristics of proteins and polypeptides with high affinity for tannins are their open loose structure, a high proline content and small size [46,52,53]. The capability of some animal species to counteract high dietary tannins was seen to be linked to salivary proline rich proteins (PRPs) ancestral function in the maintenance of oral health at a basal level of mucoproteins secretion, increased by high tannins presence in the diet [54], as observed in pigs [55], in which an increase up to a 16.8% of proline/crude protein ratio of parotid glands chemical composition was seen (Figure 1) after the inclusion of a 70% of acorns in the diet, providing high amounts of hydrolizable tannins (36.1 g TAE·kg -1 DM, expressed as tannic acid equivalents). Clauss, et al (2005) [56] refer that from carnivores through omnivores to exclusive plant-eaters, the dietary nitrogen level is progressively reduced while the presence of dietary tannins increases.…”
Section: Salivary Tannins Binding Proteins: the Role Of Proline Rich mentioning
confidence: 71%
“…After removing the separable fat, lymphnodes and associated vessels, each PG was immediately weighed on a digital scale to report fresh weight (g). Morphometric characteristics and macroscopic evaluation at visual inspection followed specific standard criteria developed in own previous trials [55]. Relative fresh weight of each parotid gland was calculated according to the body weight (BW) of the respective animal and expressed as percentage.…”
Section: Parotid Glands Inspection and Microscopic Checkmentioning
confidence: 99%
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“…The shredded acorn proportion consists of about the 50% of the mixed meal, together with cereals and legume seeds. When pigs are put into land use, acorns represent the main energy source among homegrown feedstuffs, during fall and winter [7][8][9][10][11][12][13]. According to the chemical composition of acorns, starch results in between of the 51% to 57% of dry matter and crude fat content ranges between the 4% to 6% (DM basis).…”
Section: Acorns As Dietary Source Of Natural Polyphenolsmentioning
confidence: 99%
“…The practice of feeding hulled acorns ensures stability in quality and preserved hygienic conditions of the seed and prolonged storage time, on one side, and an economic advantage on the other, as de-hulling would be expensive for the breeder. Nevertheless, ripe acorns display also to possess high amounts of anti-nutritional compounds (tannins as plant secondary metabolites, within polyphenols), which pigs showed to tolerate successfully [9,14], in con-trast to other animal species [15][16][17][18].…”
Section: Acorns As Dietary Source Of Natural Polyphenolsmentioning
confidence: 99%