Tannins in faba beans (Vicia faba L.) : antinutritional properties in monogastric animals

Research output: Thesisinternal PhD, WU

Abstract

<p>Condensed tannins are found in coloured-flowering varieties of faba beans ( <u>Vicia</u><u>faba</u> L.). They are considered as antinutritional factors for nonruminant species. High-tannin hulls of faba beans and isolated tannins were shown to induce a rapid hypertrophy of the parotid glands in rats and increase the secretion of salivary proline-rich proteins with a high affinity for tannins. In this way rats are able to defend themselves against more harmful effects of tannins. The growth performance of chickens on diets containing 300 g/kg of either low-tannin or hightannin faba beans did not differ. In contrast, the apparent ileal and faecal digestibility in pigs of protein and amino acids differed significantly between both types of beans, in favour of the low-tannin beans. Inclusion of hulls of faba beans with either a low or a high tannin content in diets for piglets revealed that tannins in faba beans reduce in particular the apparent faecal digestibility of protein and amino acids and the N balance. No systemic/toxic effects of feeding high-tannin hulls to pigs were found. The activity of trypsin and, to a lesser extent, chymotrypsin was reduced in digesta collected from the small intestine of pigs. It was shown with the <sup><font size="-2">15</font></SUP>N isotope dilution technique that about half of the extra protein appearing in ileal digesta and faeces of pigs when feeding faba bean hulls with a high tannin content is of endogenous origin. The other half consists of dietary protein. Tannins from faba beans show some preference to interact with proteins with a high content of proline and histidine. A concept for the effects and mode of action of faba bean tannins in different monogastric animal species is discussed.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
Supervisors/Advisors
  • Verstegen, Martin, Promotor
  • Huisman, J., Promotor, External person
Award date22 Jun 1993
Place of PublicationS.l.
Publisher
Publication statusPublished - 1993

Fingerprint

monogastric livestock
faba beans
Vicia faba
tannins
animals
hulls
digesta
swine
proline
beans
proteins
parotid gland
swine feeding
amino acids
antinutritional factors
isotope dilution technique
rats
chymotrypsin
digestible protein
proanthocyanidins

Keywords

  • vicia
  • vicia faba
  • faba beans
  • feeds
  • toxic substances
  • toxins
  • plants

Cite this

@phdthesis{4320f04282c94b4797d25064e2f4c3d5,
title = "Tannins in faba beans (Vicia faba L.) : antinutritional properties in monogastric animals",
abstract = "Condensed tannins are found in coloured-flowering varieties of faba beans ( Viciafaba L.). They are considered as antinutritional factors for nonruminant species. High-tannin hulls of faba beans and isolated tannins were shown to induce a rapid hypertrophy of the parotid glands in rats and increase the secretion of salivary proline-rich proteins with a high affinity for tannins. In this way rats are able to defend themselves against more harmful effects of tannins. The growth performance of chickens on diets containing 300 g/kg of either low-tannin or hightannin faba beans did not differ. In contrast, the apparent ileal and faecal digestibility in pigs of protein and amino acids differed significantly between both types of beans, in favour of the low-tannin beans. Inclusion of hulls of faba beans with either a low or a high tannin content in diets for piglets revealed that tannins in faba beans reduce in particular the apparent faecal digestibility of protein and amino acids and the N balance. No systemic/toxic effects of feeding high-tannin hulls to pigs were found. The activity of trypsin and, to a lesser extent, chymotrypsin was reduced in digesta collected from the small intestine of pigs. It was shown with the 15N isotope dilution technique that about half of the extra protein appearing in ileal digesta and faeces of pigs when feeding faba bean hulls with a high tannin content is of endogenous origin. The other half consists of dietary protein. Tannins from faba beans show some preference to interact with proteins with a high content of proline and histidine. A concept for the effects and mode of action of faba bean tannins in different monogastric animal species is discussed.",
keywords = "vicia, vicia faba, tuinbonen, voer, toxische stoffen, toxinen, planten, vicia, vicia faba, faba beans, feeds, toxic substances, toxins, plants",
author = "A.J.M. Jansman",
note = "WU thesis 1648 Proefschrift Wageningen",
year = "1993",
language = "English",
publisher = "Jansman",

}

Tannins in faba beans (Vicia faba L.) : antinutritional properties in monogastric animals. / Jansman, A.J.M.

S.l. : Jansman, 1993. 207 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Tannins in faba beans (Vicia faba L.) : antinutritional properties in monogastric animals

AU - Jansman, A.J.M.

N1 - WU thesis 1648 Proefschrift Wageningen

PY - 1993

Y1 - 1993

N2 - Condensed tannins are found in coloured-flowering varieties of faba beans ( Viciafaba L.). They are considered as antinutritional factors for nonruminant species. High-tannin hulls of faba beans and isolated tannins were shown to induce a rapid hypertrophy of the parotid glands in rats and increase the secretion of salivary proline-rich proteins with a high affinity for tannins. In this way rats are able to defend themselves against more harmful effects of tannins. The growth performance of chickens on diets containing 300 g/kg of either low-tannin or hightannin faba beans did not differ. In contrast, the apparent ileal and faecal digestibility in pigs of protein and amino acids differed significantly between both types of beans, in favour of the low-tannin beans. Inclusion of hulls of faba beans with either a low or a high tannin content in diets for piglets revealed that tannins in faba beans reduce in particular the apparent faecal digestibility of protein and amino acids and the N balance. No systemic/toxic effects of feeding high-tannin hulls to pigs were found. The activity of trypsin and, to a lesser extent, chymotrypsin was reduced in digesta collected from the small intestine of pigs. It was shown with the 15N isotope dilution technique that about half of the extra protein appearing in ileal digesta and faeces of pigs when feeding faba bean hulls with a high tannin content is of endogenous origin. The other half consists of dietary protein. Tannins from faba beans show some preference to interact with proteins with a high content of proline and histidine. A concept for the effects and mode of action of faba bean tannins in different monogastric animal species is discussed.

AB - Condensed tannins are found in coloured-flowering varieties of faba beans ( Viciafaba L.). They are considered as antinutritional factors for nonruminant species. High-tannin hulls of faba beans and isolated tannins were shown to induce a rapid hypertrophy of the parotid glands in rats and increase the secretion of salivary proline-rich proteins with a high affinity for tannins. In this way rats are able to defend themselves against more harmful effects of tannins. The growth performance of chickens on diets containing 300 g/kg of either low-tannin or hightannin faba beans did not differ. In contrast, the apparent ileal and faecal digestibility in pigs of protein and amino acids differed significantly between both types of beans, in favour of the low-tannin beans. Inclusion of hulls of faba beans with either a low or a high tannin content in diets for piglets revealed that tannins in faba beans reduce in particular the apparent faecal digestibility of protein and amino acids and the N balance. No systemic/toxic effects of feeding high-tannin hulls to pigs were found. The activity of trypsin and, to a lesser extent, chymotrypsin was reduced in digesta collected from the small intestine of pigs. It was shown with the 15N isotope dilution technique that about half of the extra protein appearing in ileal digesta and faeces of pigs when feeding faba bean hulls with a high tannin content is of endogenous origin. The other half consists of dietary protein. Tannins from faba beans show some preference to interact with proteins with a high content of proline and histidine. A concept for the effects and mode of action of faba bean tannins in different monogastric animal species is discussed.

KW - vicia

KW - vicia faba

KW - tuinbonen

KW - voer

KW - toxische stoffen

KW - toxinen

KW - planten

KW - vicia

KW - vicia faba

KW - faba beans

KW - feeds

KW - toxic substances

KW - toxins

KW - plants

M3 - internal PhD, WU

PB - Jansman

CY - S.l.

ER -