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Effect of drying treatments used for legume forages on the concentration of condensed tannins

Published online by Cambridge University Press:  20 November 2017

E F. Nozella
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
C Longo
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
S L.S. Cabral Filho
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
I C.S. Bueno
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
A L. Abdalla
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
D M.S.S. Vitti*
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP) CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
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Extract

Some herbaceous legumes have shown a dry tolerance and had been used as animal feed. However, some of those plants have anti nutritional compounds such as tannins that can interfere on intake and digestibility. Tannins are polyphenolic compounds originated in a secondary metabolism of the plant as protection against insects, birds and as a result of drought, temperature or soil fertility. In order to preserve the tannin for experimental purposes, it is suggested that the hay preparation should be made under shadow. The objective of this work was to compare the concentration of phenolics compounds in forage legumes havested in dry and wet seasons and under sun, shadow and air circulation dry.

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2004

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References

Makkar, H.P.S., 2000 Quantification of tannins in tree foliage. Vienna: FAO; IAEA, 2000. cap.3, p.6-8: Measurement of total phenolics and tannins using Folin-Ciocalteu method. (Laboratory manual).Google Scholar
Porter, L.J, Hrsich, L.N., Chan, B.G. 1986. The conversion of procyanidins and prodelphinidins to cyanidins and delphinidins. Phytochemestry 25: 223230.CrossRefGoogle Scholar
SAS Institute, 2000. The SAS system for windows. Release 8.01. Cary.Google Scholar

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