Impact of rainfall regime on chemical composition, digestibility, and methane production of Echinochloa polystachya (Kunth) Hitch

Authors

  • Medardo Díaz-Céspedes Universidad Nacional Agraria La Molina, Av. La Molina s / n, La Molina, Lima. Universidad Nacional Agraria de la Selva, Carretera Tingo María - Huánuco km 1.21, Po Box 156 Tingo, Rupa Rupa, Leoncio Prado, Huánuco. http://orcid.org/0000-0003-0134-8239
  • José Hernández-Guevara Universidad Nacional Agraria de la Selva, Carretera Tingo María - Huánuco km 1.21, Po Box 156 Tingo, Rupa Rupa, Leoncio Prado, Huánuco. http://orcid.org/0000-0002-5919-8408
  • Carlos Gómez-Bravo Universidad Nacional Agraria La Molina, Av. La Molina s / n, La Molina, Lima. http://orcid.org/0000-0001-9021-5838

DOI:

https://doi.org/10.17268/sci.agropecu.2020.02.01

Keywords:

rainfall periods, tropical pasture, German grass, nutrient quality, gas production, in vitro methane.

Abstract

The aim in this study was to determine the chemical composition, digestibility, and methane production of Echinochloa polystachya (Kunth) Hitch in periods with different rainfall in the Peruvian rainforest region. The pasture was managed under a rotational grazing system. The nutritive quality and in vitro CH4 production of the pasture during both experimental periods was determined from a sample obtained by zigzag technique and sampling points using the method of destructive systematic sampling. Echinochloa polystachya in the period of lower than higher rainfall had a higher content of neutral detergent fiber (NDF) (p < 0.001) and acid detergent fiber (ADF) (p < 0.001). Organic material (OM) was higher in the period of greater rainfall (p < 0.001); however, the crude protein (PC) content (p = 0.11), in vitro digestibility of OM (p = 0.89), corrected net gas production (p = 0.83) and in vitro CH4 output (p = 0.63) were similar for rainfall periods.

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Published

2020-06-08

How to Cite

Díaz-Céspedes, M., Hernández-Guevara, J., & Gómez-Bravo, C. (2020). Impact of rainfall regime on chemical composition, digestibility, and methane production of Echinochloa polystachya (Kunth) Hitch. Scientia Agropecuaria, 11(2), 147-155. https://doi.org/10.17268/sci.agropecu.2020.02.01

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Section

Original Articles