Short Communication: Effects of duodenal infusion of increasing amounts of α-linolenic acid on composition and susceptibility to peroxidation of blood lipids in lactating dairy cows

2012 ◽  
Vol 92 (2) ◽  
pp. 219-223 ◽  
Author(s):  
Peng Sun ◽  
Jia-Qi Wang ◽  
Qing-Sheng Liu ◽  
Khas-Erdene ◽  
Guang Yang
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Linolenic Acid ◽  
Blood Lipids ◽  
Short Communication ◽  
Saturated Fatty Acids ◽  
Density Lipoprotein ◽  
Thiobarbituric Acid ◽  
Lactating Dairy Cows ◽  
Communication Effects

Sun, P., Wang, J.-Q., Liu, Q.-S., Khas-Erdene and Yang, G. 2012. Short Communication: Effects of duodenal infusion of increasing amounts of α-linolenic acid on composition and susceptibility to peroxidation of blood lipids in lactating dairy cows. Can. J. Anim. Sci. 92: 219–223. Duodenal infusion of increasing amounts of α-linolenic acid (LNA) in dairy cows linearly decreased the percentages of 18:0, 18:2n-6 and saturated fatty acids (P<0.01), linearly and quadratically reduced 23:0 and 18:1 cis-9 (P<0.01), but linearly increased the content of 18:3 n-3 and PUFA (P<0.01) in blood plasma. As amount infused increased, concentrations of high-density lipoprotein cholesterol and total cholesterol increased quadratically and peaked at 139.9 mg dL−1 and 182.0 mg dL−1, respectively (P<0.01). No differences were observed in the activity of blood serum total superoxide dismutase and total antioxidant capacity, but the thiobarbituric acid reactive substances tended (P=0.07) to increase linearly. Duodenally infused increasing amounts of LNA altered the composition of fatty acids and distribution of lipids in blood, but did not affect the oxidative stability of the blood in dairy cows.

scholarly journals Short communication: Effects of dietary addition of N-carbamoylglutamate on milk composition in mid-lactating dairy cows

2018 ◽  
Vol 101 (12) ◽  
pp. 10985-10990 ◽  
Author(s):  
F.F. Gu ◽  
S.L. Liang ◽  
Z.H. Wei ◽  
C.P. Wang ◽  
H.Y. Liu ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Short Communication ◽  
Milk Composition ◽  
Lactating Dairy Cows ◽  
Communication Effects

scholarly journals Short communication: Responses to increasing amounts of free α-linolenic acid infused into the duodenum of lactating dairy cows

2010 ◽  
Vol 93 (4) ◽  
pp. 1677-1684 ◽  
Author(s):  
Q. Khas-Erdene ◽  
J.Q. Wang ◽  
D.P. Bu ◽  
L. Wang ◽  
J.K. Drackley ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Linolenic Acid ◽  
Short Communication ◽  
Lactating Dairy Cows

scholarly journals Short communication: Effects of diets containing supplemental fats on ruminal fermentation and milk odd- and branched-chain fatty acids in dairy cows

2018 ◽  
Vol 101 (7) ◽  
pp. 6133-6141 ◽  
Author(s):  
M. Vazirigohar ◽  
M. Dehghan-Banadaky ◽  
K. Rezayazdi ◽  
A. Nejati-Javaremi ◽  
H. Mirzaei-Alamouti ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Short Communication ◽  
Ruminal Fermentation ◽  
Communication Effects ◽  
Branched Chain Fatty Acids ◽  
Branched Chain ◽  
Chain Fatty Acids

Differential effects of medium- and long-chain saturated fatty acids on blood lipid profile: a systematic review and meta-analysis

2018 ◽  
Vol 108 (4) ◽  
pp. 675-687 ◽  
Author(s):  
Nisha Panth ◽  
Kylie A Abbott ◽  
Cintia B Dias ◽  
Katie Wynne ◽  
Manohar L Garg
Keyword(s):  
Fatty Acids ◽  
Blood Lipids ◽  
Ldl Cholesterol ◽  
Meta Analysis ◽  
Saturated Fatty Acids ◽  
Density Lipoprotein ◽  
Hdl Cholesterol ◽  
Weighted Mean ◽  
Lipids And Lipoproteins ◽  
Long Chain

Abstract Background Medium-chain saturated fatty acids (MCFAs) may affect circulating lipids and lipoproteins differently than long-chain saturated fatty acids (LCSFAs), but the results from human intervention trials have been equivocal. Objective The aim of this study was to determine whether MCFAs and LCSFAs have differential impacts on blood lipids and lipoproteins. Design Five databases were searched (EMBASE, MEDLINE, CINAHL, Cochrane, and Scopus) until April 2018, and published clinical trials investigating the differential effects of dietary MCFAs and LCSFAs on blood lipids were included. Searches were limited to the English language and to studies with adults aged >18 y. Where possible, studies were pooled for meta-analysis using RevMan 5.2. The principle summary measure was the mean difference between groups calculated using the random-effects model. Results Eleven eligible crossover and 1 parallel trial were identified with a total of 299 participants [weighted mean ± SD age: 38 ± 3 y; weighted mean ± SD body mass index (kg/m2): 24 ± 2]. All studies were pooled for the meta-analysis. Diets enriched with MCFAs led to significantly higher high-density lipoprotein (HDL) cholesterol concentrations than diets enriched with LCSFAs (0.11 mmol/L; 95% CI: 0.07, 0.15 mmol/L) with no effect on triglyceride, low-density lipoprotein (LDL) cholesterol, and total cholesterol concentrations. Consumption of diets rich in MCFAs significantly increased apolipoprotein A-I (apoA-I) concentrations compared with diets rich in LCSFAs (0.08 g/L; 95% CI: 0.02, 0.14 g/L). There was no evidence of statistical heterogeneity for HDL cholesterol, apoA-I, and triglyceride concentrations; however, significant heterogeneity was observed for the total cholesterol (I2 = 49%) and LDL cholesterol analysis (I2 = 58%). Conclusion The findings of this research demonstrate a differential effect of MCFAs and LCSFAs on HDL cholesterol concentrations. Further investigations are warranted to elucidate the mechanism by which the lipid profile is altered. This trial was registered at www.crd.york.ac.uk/PROSPERO as CRD42017078277.

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