RUMINAL DEGRADATION KINETIC PARAMETERS OF COFFEE HULLS (Coffea arabica, L.) TREATED WITH SODIUM HYDROXIDE (NAOH)

Authors

  • Mauro Pereira de Figueiredo Universidade Estadual do Sudoeste da Bahia (UESB), Itapetinga, Bahia, Brasil
  • Isaque de Oliveira Lopes MAPA
  • Fabiano Gama de Sousa Universidade Estadual do Sudoeste da Bahia (UESB), Itapetinga, Bahia, Brasil
  • Guilherme Rocha Moreira Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brasil
  • Luciano Fernandes de Sousa Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brasil
  • Pedro Gomes da Cruz Universidade Estadual do Sudoeste da Bahia (UESB), Itapetinga, Bahia, Brasil
  • Joel Queiroga Ferreira Universidade Estadual do Sudoeste da Bahia (UESB), Itapetinga, Bahia, Brasil

Keywords:

Nutrição Animal, Resíduos industriais

Abstract

The objective of this work was to evaluate dry matter ruminal degradation kinetics of coffee hulls treated with increasing sodium hydroxide quantities. Two rumen fistulated cows were used to incubate samples in nylon bags for 12. 24, 36. 48 and 72 hours. Four ruminal incubation periods were used, in a complete randomized block design. Coffee hulls were treated with 0%, 3%, 6% and 9% of sodium hydroxide (dry matter basis), corresponding to treatments T1 to t4 respectively. Experimental results were compared using Tukey test, at 5% probability level, as follows for treatments 1 to 4 respectively: soluble fraction (9.35d; 17.65c; 31.93b; 32.28a), de (34.40d; 40.50c; 43.28b; 50.35a), potential degradability (44.33d; 50.33c; 52.35b; 57.70a) and lag time in hours (4.03a; 3.93a; 4.33a; 2.55a). The results indicate that increasing the levels of NaOH in the coffee hulls treatments increased significantly their ruminal solubility, as well as their effective and potential degradabilities. However that increase had no effect upon coffee hulls lag time in the rumen.KEY WORDS: by-product feedstuffs, rumen degradability, ruminant.

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Published

2008-04-02

How to Cite

FIGUEIREDO, Mauro Pereira de; LOPES, Isaque de Oliveira; SOUSA, Fabiano Gama de; MOREIRA, Guilherme Rocha; SOUSA, Luciano Fernandes de; CRUZ, Pedro Gomes da; FERREIRA, Joel Queiroga. RUMINAL DEGRADATION KINETIC PARAMETERS OF COFFEE HULLS (Coffea arabica, L.) TREATED WITH SODIUM HYDROXIDE (NAOH). Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 1, p. 23–29, 2008. Disponível em: https://revistas.ufg.br/vet/article/view/3656. Acesso em: 13 dec. 2025.

Issue

Vol. 9 No. 1 (2008)

Section

Animal Production

License

Copyright (c) 2008 Brazilian Animal Science/ Ciência Animal Brasileira

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