The forage type (grazing versus hay pasture) fed to ewes and the lamb sex affect fatty acid profile and lipogenic gene expression in the longissimus muscle of suckling lambs1

2012 ◽  
Vol 90 (1) ◽  
pp. 54-66 ◽  
Author(s):  
E. Dervishi ◽  
M. Joy ◽  
J. Alvarez-Rodriguez ◽  
M. Serrano ◽  
J. H. Calvo
Keyword(s):  
Gene Expression ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Longissimus Muscle ◽  
Lipogenic Gene ◽  
Lipogenic Gene Expression ◽  
Forage Type

scholarly journals Dietary trans Fatty Acid Isomers Differ in Their Effects on Mammary Lipid Metabolism As Well As Lipogenic Gene Expression in Lactating Mice

2010 ◽  
Vol 140 (5) ◽  
pp. 919-924 ◽  
Author(s):  
Anil K. G. Kadegowda ◽  
Erin E. Connor ◽  
Beverly B. Teter ◽  
Joseph Sampugna ◽  
Pierluigi Delmonte ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acid ◽  
Lipid Metabolism ◽  
Trans Fatty Acid ◽  
Lipogenic Gene ◽  
Lipogenic Gene Expression ◽  
Trans Fatty Acid Isomers

scholarly journals Distinct correlations between lipogenic gene expression and fatty acid composition of subcutaneous fat among cattle breeds

2018 ◽  
Vol 14 (1) ◽  
Author(s):  
David Gamarra ◽  
Noelia Aldai ◽  
Aisaku Arakawa ◽  
Luis Javier R. Barron ◽  
Andrés López-Oceja ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Subcutaneous Fat ◽  
Lipogenic Gene ◽  
Lipogenic Gene Expression ◽  
Cattle Breeds

scholarly journals Trans-10, cis-12 conjugated linoleic acid reduces milk fat content and lipogenic gene expression in the mammary gland of sows without altering litter performance

2019 ◽  
Vol 123 (6) ◽  
pp. 610-618 ◽  
Author(s):  
E. C. Sandri ◽  
K. J. Harvatine ◽  
D. E. Oliveira
Keyword(s):  
Gene Expression ◽  
Mammary Gland ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Milk Fat ◽  
Fat Content ◽  
Lipogenic Gene ◽  
Lipogenic Genes ◽  
Lipogenic Gene Expression

AbstractTrans-10, cis-12 conjugated linoleic acid (CLA) decreases milk fat synthesis in lactating sows and involves, at least in part, the down-regulation of lipogenic genes. The objective was to evaluate the effect of CLA on milk composition and lipogenic gene expression. Twenty multiparous sows were randomly assigned to one of the two treatments for 18 d (from day 7 to day 25 of lactation): (1) control (no CLA added) and (2) 1 % of CLA mixed into the ration. CLA treatment decreased milk fat and protein content by 20 % (P = 0·004) and 11 % (P = 0·0001), respectively. However, piglet weight did not differ between treatments (P = 0·60). Dietary CLA increased the concentration of SFA in milk fat by 16 % (P < 0·0001) and decreased MUFA by 17·6 % (P < 0·0001). In the mammary gland, CLA reduced gene expression of acetyl-CoA carboxylase-α by 37 % (P = 0·003), fatty acid synthase by 64 % (P = 0·002), stearoyl-CoA desaturase 1 by 52 % (P = 0·003), lipoprotein lipase by 26 % (P = 0·03), acyl glycerol phosphate acyltransferase 6 by 15 % (P = 0·02) and diacylglycerol acyltransferase 1 by 27 % (P = 0·02), whereas the expression of fatty acid binding protein 3 was not altered by CLA treatment (P = 0·09). Mammary expression of casein-β and α-lactalbumin was reduced by CLA by 68 % (P = 0·0004) and 62 % (P = 0·005), respectively. Additionally, CLA had no effect on the expression of lipogenic genes evaluated in adipose tissue. In summary, CLA reduced milk fat content without negatively affecting litter performance and it affected mammary expression of genes involved in all lipogenic pathways studied.

Dietary supplementation with L-arginine and combinations of different oil sources beneficially regulates body fat deposition, lipogenic gene expression, growth performance and carcass yield in broiler chickens

2020 ◽  
Vol 60 (11) ◽  
pp. 1409 ◽  
Author(s):  
J. Khatun ◽  
T. C. Loh ◽  
H. Akit ◽  
H. L. Foo ◽  
R. Mohamad ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Abdominal Fat ◽  
Fat Deposition ◽  
Carcass Yield ◽  
Lipogenic Gene ◽  
Lipogenic Gene Expression

Context Broiler meat with excessive of fat and saturated fatty acids content has serious health implication for consumers. The accumulation of abdominal fats in broiler chickens constitutes a loss of dietary energy and also reduces carcass yield. Oil rich in unsaturated fatty acids and l-arginine are effective for reducing fat deposition and improve meat quality. Aims The aim of this study was to examine the effects of supplementation of l-arginine (l-Arg) with four combinations of palm oil (PO) and sunflower oil (SO) on growth performance, carcass yield, fat deposition, lipogenic gene expression and blood lipid profile in broiler chickens. Methods A total of 180 1-day-old chicks (Cobb 500) were randomly assigned to five dietary treatments as: T1, 6% PO (control); T2, 6% PO + 0.25% l-Arg; T3, 4% PO + 2% SO + 0.25% l-Arg; T4, 2% PO + 4% SO + 0.25% l-Arg; and T5, 6% SO + 0.25% l-Arg. Key results Birds fed l-Arg and combinations of PO and SO had higher weight gain at starter and finisher period compared with the control. The carcass yield increased, and relative abdominal fat reduced in broiler fed with combinations of l-Arg and increased level of SO in the diet. The concentration of oleic, palmitoleic and total monounsaturated fatty acids in liver tissue decreased by addition of l-Arg in broiler diet. The palmitic and total saturated fatty acid decreased, and total unsaturated fatty acid and polyunsaturated fatty acids increased in liver tissue when PO replaced progressively by SO supplemented with l-Arg in the diet. The acetyl-CoA carboxylase , stearoyl-CoA desaturase and fatty acid synthetase gene expression tended to decrease by supplementation of l-Arg with an increased level of SO compared with control. Conclusion Supplementation with l-Arg and combination of PO and SO at the ratio of 4:2 could inhibit lipogenesis and subsequent lower abdominal fat deposition and enhance growth performance and carcass yield in broiler chickens. Implications Ratio of PO and SO, 4:2 with l-Arg supplementation in the dietary of broiler chickens can contribute to a better growth performance, lesser fat deposition and greater carcass yield.

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