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

Authors

  • Mauro Pereira de Figueiredo UESB
  • Isaque de Oliveira Lopes MAPA
  • Fabiano Gama de Sousa UESB
  • Guilherme Rocha Moreira UFMG
  • Luciano Fernandes de Sousa UFMG
  • Pedro Gomes da Cruz UESB
  • Joel Queiroga Ferreira UESB

DOI:

https://doi.org/10.5216/cab.v9i1.3656

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, M. P. de; LOPES, I. de O.; SOUSA, F. G. de; MOREIRA, G. R.; SOUSA, L. F. de; CRUZ, P. G. da; FERREIRA, J. Q. 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. DOI: 10.5216/cab.v9i1.3656. Disponível em: https://revistas.ufg.br/vet/article/view/3656. Acesso em: 3 jul. 2024.

Issue

Vol. 9 No. 1 (2008)

Section

Animal Production

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