Fermentation kinetics and ruminal degradability in vitro of diets with different nitrogen source

Authors

  • Carlos Aguirre Valverde Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Pecuarias
  • Marlene Medina VIllacís 2Universidad Técnica Estatal de Quevedo. Facultad de Ciencias de la Ingeniería
  • León Montenegro Vivas Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Pecuarias
  • Adolfo Sánchez Laiño Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Pecuarias
  • Alexandra Barrera-Alvárez Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Pecuarias
  • Italo Espinoza Guerra Universidad Técnica Estatal de Quevedo. Facultad de Ciencias Pecuarias

DOI:

https://doi.org/10.18779/cyt.v10i2.210

Keywords:

UREA, DEGRADATION, PROTEINS, FOOD

Abstract

The objective of this work was to determine the fermentation kinetics and in vitro ruminal degradability of diets with different nitrogen source for feeding ruminants. Three diets were formulated (D) with different sources of nitrogen D1 (fishmeal), D2 (soybean paste) and D3 (urea), these were iso-caloric with 2900 kilocalories of digestible energy in dry matter (kcal ED / MS ) and iso-proteins 13% crude protein (PB). The incubation periods used were 0, 2, 4, 8, 12, 24, 48 and 72 hours. In the evolution of the Ph in the ruminal kinetics of the three diets with different sources of nitrogens, it can be determined that the D3 and D1 recorded the highest pH (P <0.05) at 8 hours of incubation (7.84 and 7.82) respectively. The in vitro Digestibility of the dry matter (DIVMS) was higher (P <0.05) in the D1 between 12 and 48 hours of incubation (36.66 and 48.90%). The initial or partial soluble degradability (a), potentially degradable fraction (b), potential degradability and degradation rate of (b), were not significant (P>0.05). This study opens an alternative for the reduction of costs in the feeding of ruminants especially oriented to maintenance diets in ruminants in the dry season.

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Published

2017-12-01

How to Cite

Aguirre Valverde, C., Medina VIllacís, M., Montenegro Vivas, L., Sánchez Laiño, A., Barrera-Alvárez, A., & Espinoza Guerra, I. (2017). Fermentation kinetics and ruminal degradability in vitro of diets with different nitrogen source. Ciencia Y Tecnología, 10(2), 69–73. https://doi.org/10.18779/cyt.v10i2.210

Issue

Vol. 10 No. 2 (2017): July-December (2017)

Section

Animal Production

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