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Short-term variations of c18:1 trans fatty acids in plasma lipoproteins and ruminal fermentation parameters of non-lactating cows subjected to ruminal pulses of oils

Vargas-Bello-P�rez, Einar; Loor, Juan J.; Garnsworthy, Philip C.

Short-term variations of c18:1 trans fatty acids in plasma lipoproteins and ruminal fermentation parameters of non-lactating cows subjected to ruminal pulses of oils Thumbnail


Authors

Einar Vargas-Bello-P�rez

Juan J. Loor

Philip C. Garnsworthy



Abstract

© 2021 by the authors. Licensee MDPI, Basel, Switzerland. The objective of this study was to evaluate short-term variations of trans fatty acids (TFA) in plasma lipoproteins and ruminal fermentation parameters of non-lactating cows subjected to ruminal pulses of vegetable oils. Three non-lactating, non-pregnant Holstein cows, each with a ruminal cannula, were arranged in a 3 × 3 Latin square design with three-day pulsing periods and four-day washout intervals between treatments. Cows were treated with single ruminal pulses of: (1) control (skimmed milk (SM); 500 mL); (2) soybean oil (SO; 250 g/d in 500 mL of SM) and (3) partially-hydrogenated vegetable oil (PHVO; 250 g/d in 500 mL of SM). Time changes after infusion in TFA contents were only observed for plasma C18:1 trans-4, trans-5 and trans-12, and high-density lipoprotein fraction C18:1 trans-9. After ruminal pulses, concentration of acetate decreased linearly; molar concentrations of propionate and valerate increased linearly; molar concentrations of butyrate and isovalerate changed quadratically and were greater at 1 h than at other times. There was an accumulation of several C18:1 TFA in plasma and lipoproteins, especially on the third day of pulsing. Overall, naturally occurring C18:1 TFA isomers (produced during ruminal biohydrogenation of SO) and preformed TFA (supplied by PHVO) elicited differential TFA partitioning and transport in plasma and lipoproteins.

Citation

Vargas-Bello-Pérez, E., Loor, J. J., & Garnsworthy, P. C. (2021). Short-term variations of c18:1 trans fatty acids in plasma lipoproteins and ruminal fermentation parameters of non-lactating cows subjected to ruminal pulses of oils. Animals, 11(3), Article 788. https://doi.org/10.3390/ani11030788

Journal Article Type Article
Acceptance Date Mar 10, 2021
Online Publication Date Mar 12, 2021
Publication Date Mar 1, 2021
Deposit Date Mar 12, 2021
Publicly Available Date Mar 22, 2021
Journal Animals
Electronic ISSN 2076-2615
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 11
Issue 3
Article Number 788
DOI https://doi.org/10.3390/ani11030788
Keywords biohydrogenation; cows; lipoproteins; ruminal fluid; trans fatty acids; vaccenic acid
Public URL https://nottingham-repository.worktribe.com/output/5389017
Publisher URL https://www.mdpi.com/2076-2615/11/3/788

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