Fresh and artificially dried forages ruminal degradability. II. Perennial soybean (Neonotonia wightii) and alfafa (Medicago sativa L.) degradabilities through "in situ" dacron bags in rumen fistulates steers

  • Laércio Melotti Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP
  • Carlos de Souza Lucci Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP
  • Benedito do Espírito Santo Campos Instituto de Zootecnia, Nova Odessa, SP
  • Edson Valvasori Instituto de Zootecnia, Nova Odessa, SP
  • Sérgio Carlo Franco Morgulis Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Pirassununga, SP
  • José Aparecido Cunha Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, São Paulo, SP
Keywords: Forrage digestibility, Neonotonia wightii, Medicago sativa, Cattle

Abstract

Ruminal degradability rates for dry matter (DM), crude protein (CP) and crude fiber (CF) of alfafa and perennial soybean, both fresh and artificially dried, were determined by nylon bags “in situ" technique. Eight male rumen fistulated crossbred steers were used in change-over design 4 x 4, to test the following treatments. A) perennial soybean fresh; B) perennial soybean dehidrated; C) alfafa fresh and D) alfafa dehidrated. There were no statistically significant differences for DM or CP. The DM degradability rates at 48 hours were: 56.89%; 58.73%; 59.55% and 55.43%. The CP degradability at 12,24 and 48 hours was higher for perennial soybean. No statiscal differences were found between fresh and dehidrated roughages. CP degradability rates at 48 hours of incubation time were 20.10%; 21.63%; 35.71% and 29.61% respectively for treatments A, B, C and D.

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Published
1993-12-02
How to Cite
Melotti, L., Lucci, C., Campos, B., Valvasori, E., Morgulis, S. C., & Cunha, J. A. (1993). Fresh and artificially dried forages ruminal degradability. II. Perennial soybean (Neonotonia wightii) and alfafa (Medicago sativa L.) degradabilities through "in situ" dacron bags in rumen fistulates steers. Brazilian Journal of Veterinary Research and Animal Science, 30(2), 161-165. https://doi.org/10.11606/issn.1678-4456.bjvras.1993.52030
Section
ZOOTECHNICS