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
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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-pérez, Einar; Loor, Juan J.; Garnsworthy, Philip C.
I: Animals, Bind 11, Nr. 3, 788, 2021, s. 1-15.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - 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
AU - Vargas-Bello-pérez, Einar
AU - Loor, Juan J.
AU - Garnsworthy, Philip C.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Biohydrogenation
KW - Cows
KW - Lipoproteins
KW - Ruminal fluid
KW - Trans fatty acids
KW - Vaccenic acid
U2 - 10.3390/ani11030788
DO - 10.3390/ani11030788
M3 - Journal article
C2 - 33808977
AN - SCOPUS:85102184879
VL - 11
SP - 1
EP - 15
JO - Animals
JF - Animals
SN - 2076-2615
IS - 3
M1 - 788
ER -
ID: 258899658