Fermentation characteristics, chemical composition and fractionation of carbohydrates and crude protein of silage of elephant grass wilted or with addition of castor bean meal

Authors

  • Leandro Sampaio Oliveira Ribeiro Universidade Estadual do Sudoeste da Bahia
  • Aureliano José Vieira Pires Universidade Estadual do Sudoeste da Bahia
  • Gleidson Giordano Pinto de Carvalho Universidade Federal da Bahia
  • Mara Lúcia Albuquerque Pereira Universidade Estadual do Sudoeste da Bahia
  • Alana Batista dos Santos Universidade Estadual do Sudoeste da Bahia
  • Leone Campos Rocha Universidade Estadual do Sudoeste da Bahia

DOI:

https://doi.org/10.5433/1679-0359.2014v35n3p1447

Keywords:

Biodiesel, Coproduct, Pennisetum purpureum, Ricinus communis L.

Abstract

The experiment was conducted to evaluate the concentrations of ammonia nitrogen, hydrogen potential, the losses of deriving the fermentative process, nutritional value, the fractioning of carbohydrates and protein the elephant grass silage wilted or not containing castor bean meal. The experimental design was completely randomized, with five treatments and with four replications: elephant grass wilted; elephant not wilted; elephant grass more castor bean meal (6%); elephant grass more castor bean meal (12%) and elephant grass more castor bean meal (18%), the coproduct was added with base on natural matter. We adopted a specific mass of 600 kg/m3. The silage containing 18% castor bean meal showed higher (P<0.05) pH (4.8). High level of ammoniacal nitrogen was observed in the silage grass not wilted (12.8% N-total). The castor bean meal was effective in reducing (P<0.05) losses to by effluent and total, providing a higher rate of recovery of dry matter. Also, was efficient in increasing (P<0.05) the levels of DM, ash, crude protein e lignin. Already for organic matter, acid detergent insoluble nitrogen, total digestible nutrients, neutral detergent fiber, acid detergent fiber, cellulose and total carbohydrate decreased (P<0.05) with increasing doses of the castor bean meal. For the carbohydrate fractioning, there was no difference (P>0.05) among the silages with additives for fractions A+B1, B2 and C. For the protein fractioning, the fractions A and C decreased (P<0.05) with increase of the inclusion of castor bean meal, differently, of the fraction B1+B2 which increased. The castor bean stands out as a good additive in silage of elephant grass to reduce moisture and improve the fermentation characteristics of silages also was effective in increasing the protein value of silages, especially when using the dose 18%.

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Author Biographies

Leandro Sampaio Oliveira Ribeiro, Universidade Estadual do Sudoeste da Bahia

Mestre em Zootecnia, Programa de Pós-Graduação em Zootecnia, UESB, Itapetinga, BA.

Aureliano José Vieira Pires, Universidade Estadual do Sudoeste da Bahia

Prof. Pleno, Deptº de Tecnologia Rural e Animal, DTRA, UESB, Itapetinga, BA. Pesquisador do CNPq.

Gleidson Giordano Pinto de Carvalho, Universidade Federal da Bahia

Prof. do Deptº de Produção Animal, UFBA, Salvador, BA.

Mara Lúcia Albuquerque Pereira, Universidade Estadual do Sudoeste da Bahia

Profª Plena, Deptº de Estudos Básicos Instrumentais, DEBI, UESB, Itapetinga, BA.

Alana Batista dos Santos, Universidade Estadual do Sudoeste da Bahia

Mestre em Zootecnia, Programa de Pós-Graduação em Zootecnia, UESB, Itapetinga, BA.

Leone Campos Rocha, Universidade Estadual do Sudoeste da Bahia

Discente do Curso de Graduação em Zootecnia, UESB, Itapetinga, BA.

Published

2014-06-25

How to Cite

Ribeiro, L. S. O., Pires, A. J. V., Carvalho, G. G. P. de, Pereira, M. L. A., Santos, A. B. dos, & Rocha, L. C. (2014). Fermentation characteristics, chemical composition and fractionation of carbohydrates and crude protein of silage of elephant grass wilted or with addition of castor bean meal. Semina: Ciências Agrárias, 35(3), 1447–1462. https://doi.org/10.5433/1679-0359.2014v35n3p1447

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