The influence of different proportions of rumen degradable protein and non-fiber carbohydrate consisted in feed ration on in vitro rumen fermentation, digestibility, gas production kinetics and enteric methane emission

Authors

  • Ujang Hidayat Tanuwiria Department of Animal Nutrition and Feed Technology, Faculty of Animal Sciences, Universitas Padjadjaran, Sumedang, Indonesia. https://orcid.org/0000-0002-8139-1693
  • Mardiati Zain Department of Animal Nutrition and Feed Technology, Faculty of Animal Science, Andalas University, Padang, Indonesia. https://orcid.org/0000-0002-0321-1773
  • Jasmal Ahmari Syamsu Faculty of Animal Sciences, Universitity of Hasanuddin, Makassar, Indonesia. https://orcid.org/0000-0003-1410-5201
  • Yunilas Yunilas Faculty of Agriculture, Department of Animal Science, University of Sumatera Utara, Medan, Indonesia.
  • Andi Mushawwir Department of Animal Nutrition and Feed Technology, Faculty of Animal Sciences, Universitas Padjadjaran, Sumedang, Indonesia. https://orcid.org/0000-0001-5919-6958
  • Yulianri Rizki Yanza Department of Animal Nutrition and Feed Technology, Faculty of Animal Sciences, Universitas Padjadjaran, Sumedang, Indonesia. https://orcid.org/0000-0001-8433-7644

Keywords:

Rumen fermentation; non-fiber carbohydrates; rumen degradable protein; in vitro; methane; gas kinetics

Abstract

Objective: The present study aimed to determine the influence of different rumen degradable protein (RDP)/non-fibrous carbohydrate (NFC) proportions on ruminal fermentation characteristics, gas production kinetics, and microbial populations. Materials and Methods: An in vitro batch culture trial was conducted using different combinations of RDP/NFC proportions categorized into six dietary treatments (n = 5 per treatment, three replicative runs). Combinations of balanced RDP/NFC proportions were 60% RDP: 35% NFC (P1, 1:3.65), 60% RDP: 40% NFC (P2, 1:4.17), 65% RDP: 35% NFC (P3, 1:3.37), 65% RDP: 40% NFC (P4, 1:3.85), 55% RDP: 39% NFC (P5, 1:5.06), and 55% RDP: 41% NFC (P6, 1:5.32). Results: The present study observed that the combination of a high proportion of RDP and NFC influenced in vitro rumen fermentation, such as volatile fatty acid and NH₃ concentrations, and in vitro organic matter digestibility. However, a high RDP (65%) with a low NFC (35%) positively influenced total gas production, gas kinetics, enteric methane production, and microbial population in the rumen. Conclusion: In this study, we revealed that the ratios of RDP and NFC in animal feed have a considerable impact on rumen fermentation, microbial population, and digestibility.

J. Adv. Vet. Anim. Res., 12(3): 784–794, September 2025

http://doi.org/10.5455/javar.2025.l941

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Published

2025-12-29

How to Cite

Tanuwiria, U. H., Zain, M., Syamsu, J. A., Yunilas, Y., Mushawwir, A., & Yanza, Y. R. (2025). The influence of different proportions of rumen degradable protein and non-fiber carbohydrate consisted in feed ration on in vitro rumen fermentation, digestibility, gas production kinetics and enteric methane emission. Journal of Advanced Veterinary and Animal Research, 12(3), 784–794. Retrieved from https://banglajol.info/index.php/JAVAR/article/view/86090

Issue

Vol. 12 No. 3 (2025)

Section

Original Articles

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Copyright (c) 2025 Ujang Hidayat Tanuwiria, Mardiati Zain, Jasmal Ahmari Syamsu, Yunilas Yunilas, Andi Mushawwir, Yulianri Rizki Yanza

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