Effect of different sources of dietary omega-3 fatty acids on general performance and fatty acid profiles of thigh, breast, liver and portal blood of broilers

2004 ◽  
Vol 85 (2) ◽  
pp. 219-226 ◽  
Author(s):  
Matthias Schreiner ◽  
Howard W Hulan ◽  
Ebrahim Razzazi-Fazeli ◽  
Josef Böhm ◽  
Renata G Moreira
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Portal Blood ◽  
Omega 3 Fatty Acids ◽  
Fatty Acid Profiles ◽  
Omega 3 ◽  
General Performance ◽  
Different Sources

scholarly journals Dietary saturated and omega-3 fatty acids affect growth and fatty acid profiles of Malaysian mahseer

2011 ◽  
Vol 114 (2) ◽  
pp. 185-193 ◽  
Author(s):  
Ehsan Ramezani-Fard ◽  
Mohd Salleh Kamarudin ◽  
Sharr Azni Harmin ◽  
Che Roos Saad
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Omega 3 Fatty Acids ◽  
Fatty Acid Profiles ◽  
Omega 3

scholarly journals 250 Evaluation of Green Grass as a feed ingredient in beef finishing rations and impact on cattle performance, carcass characteristics, and fatty acid profiles in meat

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 138-138
Author(s):  
Mitchell M Norman ◽  
Nicolas Bland ◽  
Bradley M Boyd ◽  
Brianna Conroy ◽  
Chris Calkins ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Unsaturated Fatty Acids ◽  
Carcass Characteristics ◽  
Omega 3 Fatty Acids ◽  
Fatty Acid Profiles ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Marbling Score ◽  
Finishing Diets

Abstract A finishing study used 240 crossbred steers (initial BW=340 ±24 kg) to evaluate performance, carcass characteristics, and fatty acid profiles of beef from finishing steers. Four inclusions (0, 10, 20, 30 % DM basis) of Green Grass displaced dry rolled corn in the finishing diet. Green Grass is a blend of herbs and plants imported from Korea that are high in omega-3 fatty acids with 13.9 % fat,32.0 % CP, and 27.0 % Acid detergent fiber. The remaining diet consisted of 15 % WDGS, 20 % corn silage, and 6 % liquid supplement (DM basis). There were no differences in final BW, gain or carcass traits (P³0.14). Cattle were harvested over three slaughter days and were fed for 190, 199, or 203 days. Dry matter intake linearly increased (P = 0.04)as Green Grass inclusion increased in the diet. A linear response (P£0.01) to feeding Green Grass was observed for G:F, with steers fed Green Grass having lower feed efficiency than control cattle. The G:F of cattle fed Green Grass was 5.4, 3.4, and 6.8 % lower in G:F as inclusion increased suggesting Green Grass has 68.6 % the energy of corn it replaced. Steers fed 30 % Green Grass had a lower marbling score. Linear increases in alpha linolenic acid, trans-unsaturated fatty acids, and omega-3 fatty acids (P£0.01) were observed in steak samples from steers fed increasing inclusion of Green Grass. Including up to 30 % inclusion of Green Grass on a DM basis in finishing diets decreased G:F; however, it appeared to have no other effects on performance or carcass characteristics. Feeding Green Grass linearly improved omega-3 fatty acid concentration in beef.

scholarly journals Enzyme-Assisted Extraction of Fish Oil from Whole Fish and by-Products of Baltic Herring (Clupea harengus membras)

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1811
Author(s):  
Ella Aitta ◽  
Alexis Marsol-Vall ◽  
Annelie Damerau ◽  
Baoru Yang
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fish Oil ◽  
Crude Oil ◽  
Proteolytic Enzymes ◽  
Clupea Harengus ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Baltic Herring ◽  
By Products

Baltic herring (Clupea harengus membras) is one of the most abundant commercially caught fish species from the Baltic Sea. Despite the high content of fat and omega-3 fatty acids, the consumption of Baltic herring has decreased dramatically over the last four decades, mostly due to the small sizes and difficulty in processing. At the same time there is an increasing global demand for fish and fish oil rich in omega-3 fatty acids. This study aimed to investigate enzyme-assisted oil extraction as an environmentally friendly process for valorizing the underutilized fish species and by-products to high quality fish oil for human consumption. Three different commercially available proteolytic enzymes (Alcalase®, Neutrase® and Protamex®) and two treatment times (35 and 70 min) were investigated in the extraction of fish oil from whole fish and by-products from filleting of Baltic herring. The oil quality and stability were studied with peroxide- and p-anisidine value analyses, fatty acid analysis with GC-FID, and volatile compounds with HS-SPME-GC-MS. Overall, longer extraction times led to better oil yields but also increased oxidation of the oil. For whole fish, the highest oil yields were from the 70-min extractions with Neutrase and Protamex. Protamex extraction with 35 min resulted in the best fatty acid composition with the highest content of eicosapentaenoic acid (EPA; 20:5n-3) and docosahexaenoic acid (DHA; 22:6n-3) but also increased oxidation compared to treatment with other enzymes. For by-products, the highest oil yield was obtained from the 70-min extraction with Protamex without significant differences in EPA and DHA contents among the oils extracted with different enzymes. Oxidation was lowest in the oil produced with 35-min treatment using Neutrase and Protamex. This study showed the potential of using proteolytic enzymes in the extraction of crude oil from Baltic herring and its by-products. However, further research is needed to optimize enzymatic processing of Baltic herring and its by-products to improve yield and quality of crude oil.

Omega-3 Levels and Nicotine Dependence: A Cross-Sectional Study and Clinical Trial

2015 ◽  
Vol 22 (3) ◽  
pp. 153-162 ◽  
Author(s):  
Juçara X. Zaparoli ◽  
Eduardo K. Sugawara ◽  
Altay A.L. de Souza ◽  
Sérgio Tufik ◽  
José Carlos F. Galduróz
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fish Oil ◽  
Nicotine Dependence ◽  
Cross Sectional Study ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Double Blind ◽  
Cross Sectional ◽  
Omega 3 Fatty Acid

Background: High oxidative stress, which is caused by smoking, can alter omega-3 fatty acid concentrations. Since omega-3 fatty acids play a role in dopaminergic neurotransmission related to dependence, it is important to understand their effects on nicotine dependence. Methods: This research comprised 2 studies. The first one consisted of a cross-sectional evaluation, in which the levels of the most important omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), were compared between smokers and non-smokers in a sample of 171 individuals; of them, 120 were smokers and 51 were non-smokers. The other study was a clinical, double-blind, randomized, placebo controlled, in which 63 smokers received daily treatment with capsules of fish oil (a source of omega-3/3 g/day) or mineral oil (used as placebo, also 3 g/day), taken 3 times a day for 90 days. Each fish oil capsules contained approximately 210.99 mg EPA and 129.84 mg of DHA. The outcome was evaluated by means of psychometric and biological measures as well as self-reports of tobacco use. The evaluations were carried out at the beginning of treatment and once a month thereafter (total of 4 times). Outcomes: The omega-3 fatty acid lipid profile showed that smokers present lower concentrations of DHA. After treatment, the omega-3 group showed a significant reduction in their levels of dependence. Interpretation: Smokers showed lower peripheral levels of omega-3, and treatment with the most important omega-3 fatty acids brought about a reduction in nicotine dependence.

Abstract P120: Omega-3 Fatty Acid Supplementation in Middle-Aged Adults Reduces Cardiometabolic Risk in Men but not Women

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Claire Newlon ◽  
Matthew Muldoon ◽  
Susan Sereika ◽  
Dora Kuan
Keyword(s):  
Blood Pressure ◽  
Gender Differences ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Cardiometabolic Risk ◽  
Acid Metabolism ◽  
Hdl Cholesterol ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Middle Aged Adults

Background: Greater consumption of omega-3 fatty acids has been associated with lower cardiovascular disease risk. Randomized controlled trials indicate direct, albeit small, beneficial effects of omega-3 fatty acids on plasma triglycerides and blood pressure, yet few studies have tested their impact on insulin resistance and the clustered risk factors comprising the metabolic syndrome. Hypothesis: Short-term supplementation with marine omega-3 polyunsaturated fatty acids, EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) will improve aggregated cardiometabolic risk (CMR) in healthy middle-aged adults Methods: We conducted a double-blind, placebo-controlled, parallel group clinical trial. Subjects were 30-54 year-old adults free of atherosclerotic disease and diabetes whose intake of EPA and DHA totaled <300 mg/day. Each was randomly assigned to daily fish oil supplements (2g/day containing 1000 mg EPA and 400mg DHA) or matching soybean oil placebo for 18 weeks. Aggregate CMR at baseline and post-intervention was calculated as the standardized sum of standardized distributions of blood pressure, BMI, and fasting serum triglycerides, glucose, and HDL (reverse scored). Missing data due to dropouts (n=17) and outliers (1-6 per variable) were replaced by multivariate imputation. Outcome analyses were conducted with linear regressions of all randomized subjects based on intention-to-treat. Results: Participants were 272 healthy adult (57% (154 out of 272) women; 17% (47 out of 272) minority; mean age 42) Pittsburgh-area residents. At baseline, demographics, health parameters, physical activity and EPA and DHA consumption did not differ significantly between treatment groups. No overall treatment effect was found, whereas gender moderated the effects of treatment on CMR risk (gender, p=.001 and gender*treatment interaction term p=.011). In gender-specific analyses, supplementation lowered CMR risk relative to placebo in men(p=.036, effect size=.629, standard error (SE) =.282) but not women (p=.168, effect size .261, SE=.222). Of the individual CMR variables, only HDL-cholesterol in men revealed a significant improvement (p=.012). In men receiving placebo, HDL-cholesterol fell by 1.1 mg/dl, whereas in those receiving fish oil, HDL rose by 1.7 mg/dl. As has been noted in other samples, compared to women men had greater CMR and lower HDL-cholesterol. Conclusions: Increased intake of n-3 fatty acids over 4 months reduced CMR in healthy, mid-life men but not women. This finding may be due to poorer baseline CMR and HDL characteristic of men, or to gender differences in fatty acid metabolism. Further study of gender differences in cardiometabolic risk and fatty acid metabolism may lead to gender-tailored preventive interventions.

scholarly journals Monitoring of Biochemical Compounds and Fatty Acid in Marine Microalgae from the East Coast of Thailand

2018 ◽  
Vol 17 (4) ◽  
pp. 334-347
Author(s):  
Kwanchayanawish MACHANA ◽  
Amonrat KANOKRUNG ◽  
Sirinart SRICHAN ◽  
Boonyadist VONGSAK ◽  
Maliwan KUTAKO ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
East Coast ◽  
Predictive Accuracy ◽  
Partial Least Square ◽  
Least Square ◽  
Biodiesel Production ◽  
Fatty Acid Profiles ◽  
Omega 3 ◽  
Ft Ir

Determinations of fatty acid profiles of five microalgae; Amphora sp., Chaetoceros sp., Melosira sp., Bellerochae sp., and Lithodesmium sp., from the east coast of Thailand were evaluated by conventional Gas Chromatography-Flame Ionization Detector (GC-FID). The results exhibited that the fatty acids suitable for biodiesel production were the most frequent entities encountered in all microalgae profiles. The GC chromatogram of fatty acid profiles in microalgae showed that both Amphora sp. and Chaetoceros sp. comprised essential omega-3 fatty acids, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). Additionally, this study assessed whether Fourier Transform infrared (FT-IR) microspectroscopy could be used to evaluate and monitor the biochemical compositions of microalgae, including lipid, carbohydrate, and protein profiles, by using colorimetric methods. Results showed that FT-IR spectra combined with biochemical values of lipid, carbohydrate, and protein contents were used as predictive models generated by partial least square (PLS) regression. Cross-validation of the lipid, protein, and carbohydrate models showed high degrees of statistical accuracy with RMSECV values of approximately 0.5 - 3.22 %, and a coefficient of regression between the actual and predicted values of lipids, carbohydrates, and proteins were 92.66, 95.73, and 96.43 %, respectively. The RPD values were all high (> 3), indicating good predictive accuracy. This study suggested that FT-IR could be a tool for the simultaneous measurement of microalgae composition of biochemical contents in microalgae cells.

scholarly journals The combined supplementation of omega-3 fatty acids and probiotics decreased the levels of serum polyamines in experimental colitis

2021 ◽  
Vol 7 (4) ◽  
pp. 279-285
Author(s):  
Havvanur Yoldaş İlktaç ◽  
Nihal Büyükuslu ◽  
Cüneyd Parlayan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
High Performance ◽  
Experimental Colitis ◽  
Serum Levels ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Lower Serum ◽  
Omega 3 Fatty Acid ◽  
Combined Supplementation

Polyamines play an important role in the maintenance of intestinal permeability. Therefore we aimed to determine the effects of probiotics and omega 3 fatty acids on serum polyamine levels in colitis. Fifty BALB/c mice were randomly grouped as normal, colitis with no treatment applied, colitis treated by probiotics (VSL#3), colitis treated by omega-3, and colitis treated by both probiotics and omega-3. Experimental colitis was induced by injection of 200 mg/kg 2,4-Dinitrobenzenesulfonic acid (DNBS). The probiotic and the omega-3 fatty acid supplements were applied daily by oral gavage. Serum polyamine levels were measured with high performance liquid chromatography (HPLC). In each group, the levels of serum polyamines are the highest in spermidine and the least in spermine. Bowel inflammation in experimentally induced colitis mice resulted in lower serum polyamine concentrations. In probiotic and omega 3 fatty acid supplemented group significant decreases were observed for spermine and spermidine (p<0.001), while no significant changes were obtained for putrescine. Combined supplementation of probiotics and omega-3 fatty acids for 10 days in colitis mice significantly decreased the serum levels of spermine and spermidine.

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