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Changes in Fatty Acid Levels during In Vitro Ruminal Fluid Incubation with Different Proportions of Maize Distillers Dried Grains (DDGS)

Authors :
Ewa Pecka-Kiełb
Joanna Tumanowicz
Andrzej Zachwieja
Dorota Miśta
Robert Kupczyński
Bożena Króliczewska
Jowita Kaszuba
František Zigo
Tomasz Suchocki
Source :
Agriculture; Volume 13; Issue 4; Pages: 763
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

This study aimed to analyse changes in the profile of long-chain fatty acids in the ruminal fluid of cows during in vitro fermentation, using different proportions of maize DDGS (distillers dried grains with solubles) as a substrate. The serum bottles were filled with 1 g of concentrate feed (C), which consisted of cereal middlings, postextraction rapeseed meal, and soybean meal. Substrates I, II, and III contained the same ingredients as substrate C, but also included DDGS at increasing proportions, while substrate IV contained only DDGS. Ruminal fluid with a buffer was then added to the bottles and incubated for 4, 8, and 24 h. After incubation, the fatty acid profile was analysed using a gas chromatograph. The use of DDGS as a substrate resulted in a decrease in SFA, and an increase in the proportion of UFA, including oleic acid (C18:1n9c) and linoleic acid (C18:2n6c). The fermentation profile with 15% and 20% DDGS in TMR proved to be the most beneficial. These findings suggest that the byproduct of bioethanol production could potentially improve the fatty acid profile in the ruminal fluid, resulting in higher-quality animal products.

Details

ISSN :
20770472
Volume :
13
Database :
OpenAIRE
Journal :
Agriculture
Accession number :
edsair.doi.dedup.....5676899e3775fd44ea0d5939cda82c3f
Full Text :
https://doi.org/10.3390/agriculture13040763