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Effect of drying and urea treatments on tannins levels in browses from North-East Brazil

Published online by Cambridge University Press:  23 November 2017

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

Some herbaceous browses 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 from the secondary metabolism of the plant as protection against insects, birds and as a result of drought, temperature or soil fertility. The objectives of this work were to evaluate the level and variation of tannins in important browses from the semi-arid of Brazil and to investigate the effects of different treatments (oven-, shade- and sun-drying and treatment with urea) on phenolics compounds.

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2005

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References

Makkar, H. P. S., 2000 Quantification of tannins in tree foliage. Vienna: FAO; IAEA, 2000. cap.3, p.68: Measurement of total phenolics and tannins using Folin-Ciocalteu method. (Laboratory manual).Google Scholar
SAS Institute, 2000. The SAS system for windows. Release 8.01. Cary.Google Scholar

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