IN SITU DEGRADABILITIES OF PEARL MILLET SILAGES IN SHEEP

Authors

  • Roberto Guimarães Júnior Embrapa Cerrados
  • Lúcio Carlos Gonçalves Escola de Veterinária da UFMG
  • Diogo Gonzaga Jayme CEFET-Uberaba
  • Daniel Ananias de Assis Pires UNIMONTES - Janaúba
  • José Avelino dos Santos Rodrigues Embrapa Milho e Sorgo
  • Thierry Ribeiro Tomich Embrapa Pantanal

DOI:

https://doi.org/10.5216/cab.v11i2.7053

Keywords:

forage production

Abstract

The objective of this study was to evaluate and to compare in situ dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) degradabilities of three pearl millet genotypes silages (BRS-1501, NPM-1 e CMS-3), incubated at 6, 12, 24, 48 and 96 hours in sheep. The experimental design was a randomized block in split plot arrangement, and the means compared by SNK test at 5% significance level. Values of effective degradability at 2.0%/h, 5.0%/h and 8.0%/h passage rates were: 48.5%, 39.6% and 35.8% for BRS-1501 silage, 46.3%, 38.1% and 35.0% for NPM-1 silage and 47.8%, 40.2% and 36.9% for CMS-3 silage, respectively. The highest degradation rate (2.08% / h), solubility (74.4%) and effective degradability of CP were observed for CMS-3. The potential degradability (A) of NDF was equal to the potentially degradable fraction (B1) in all silages, whose values were 52.3% (BRS-1501), 57.6% (NPM-1) and 46.6% (CMS-3). CP fraction of pearl millet silages presented high solubility and CMS-3 silage showed better quality of this fraction. Low NDF degradabilities were observed for all silages. According to the findings of this work, the BRS-1501 and CMS-3 silages presented better nutritional value than the NPM-1 due to their highest effective degradabilities.

KEYWORDS: Nutritive value, roughage, ruminants, supplementation.

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Author Biographies

Roberto Guimarães Júnior, Embrapa Cerrados

Pesquisa e desenvolvimento. Zootecnia.

Lúcio Carlos Gonçalves, Escola de Veterinária da UFMG

Departamento de Zootecnia.

Diogo Gonzaga Jayme, CEFET-Uberaba

Departamento de Zootecnia.

Daniel Ananias de Assis Pires, UNIMONTES - Janaúba

Departamento de Zootecnia.

José Avelino dos Santos Rodrigues, Embrapa Milho e Sorgo

Pesquisa e desenvolvimento. Melhoramento genético vegetal.

Thierry Ribeiro Tomich, Embrapa Pantanal

Pesquisa e desenvolvimento. Zootecnia.

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Published

2010-06-22

How to Cite

GUIMARÃES JÚNIOR, R.; GONÇALVES, L. C.; JAYME, D. G.; DE ASSIS PIRES, D. A.; RODRIGUES, J. A. dos S.; TOMICH, T. R. IN SITU DEGRADABILITIES OF PEARL MILLET SILAGES IN SHEEP. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 11, n. 2, p. 334–343, 2010. DOI: 10.5216/cab.v11i2.7053. Disponível em: https://revistas.ufg.br/vet/article/view/7053. Acesso em: 30 jun. 2024.

Issue

Vol. 11 No. 2 (2010)

Section

Animal Production

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