Effect of Omega-3 fatty acids enrichment on performanceand carcass traits of broiler chicken

Author(s):  
N. Bharath ◽  
V. Chinnipreetam ◽  
V. Ravinder Reddy ◽  
A. K. Panda

The experiment was conducted to study the effect of omega-3 fatty acids on performance, carcass traits of broiler chicken. For this purpose, 280 day-old commercial male broiler chicks were randomly divided into seven dietary groups with eight replicates of five birds each (7x8x5) and reared in battery brooders up to 42 days of age following standard management and vaccination schedule. The birds were offered with corn-soya based broiler pre-starter (0-11 days), starter (12-21 days) and finisher (22-42 days) diets. The control diet (T1) was prepared with sunflower oil and diets for remaining treatment groups (T2- T7) were formulated by replacing sunflower oil with different levels of linseed oil and fish oil. The experimental design consists of T1 - Control diet with sunflower oil, T2 - linseed oil @ 33% of sunflower oil, T3 - linseed oil @ 67% of sunflower oil, T4 - linseed oil @ 100%, T5 - fish oil @ 33% of sunflower oil, T6 - fish oil @ 67% of sunflower oil and T7 - fish oil @ 100%. The performance of broiler chicken was evaluated in terms of weekly body weight gain (WBWG) and Feed consumption (FC) as influenced by the supplementation of various levels of Linseed and fish oil. At the end of experiment (42nd day) one bird from each replicate (8 birds per treatment) was randomly selected for estimating slaughter parameters. Significant (P less than 0.05) influence was noticed on the body weight gains of broilers. Feed consumption was not significantly (P>0.05) influenced whereas, FCR was significantly (P less than 0.05) influenced. The Carcass traits like dressing yield, breast yield, liver and giblet percentage were not influenced, whereas abdominal fat percentage was significantly (P less than 0.05) influenced by the inclusion of n-3 fatty acid sources. The study indicated that supplementation of n-3 FA (LO or FO) sources at the level of 3.9 per cent did not cause any adverse effects on performance of broilers, carcass characteristics of meat in addition to decrease in abdominal fat percent.

2008 ◽  
Vol 149 (14) ◽  
pp. 627-637 ◽  
Author(s):  
Zsuzsa Varga

Cardioprotective action of omega-3 polyunsaturated fatty acids such as eicosapentaenoic and docosahexaenoic acid in fish and α-linolenic acid in plants was demonstrated in primary and secondary clinical trials. Fish oil therapy causes a marked decrease in serum triacylglycerol and very low density lipoprotein levels and increases moderately high density lipoprotein levels without any adverse effects. Omega-3 fatty acids decrease slightly, but significantly blood pressure, enhance endothelial function, they have anti-aggregator, anti-thrombotic and anti-inflammatory effects as well. These beneficial effects are in connection with modification of gene transcription levels of some key molecules such as nuclear factor-κB and sterol element binding receptor protein-1c, which regulate for example expression of adhesion molecules or several receptors involved in triglyceride synthesis (hepatocyte X receptor, hepatocyte nuclear factor 4α, farnesol X receptor, and peroxisome proliferator-activated receptors). On the basis of these observations, the supplementation of the diet with omega-3 fatty acids (fish, fish oil, linseed, and linseed oil or canola oil) is advisable in primary and secondary prevention.


Author(s):  
N. Arulnathan ◽  
R Karunakaran ◽  
V Balakrishanan ◽  
M Chellapandian ◽  
S. T. Selvan

An experiment was conducted to study the effect of inclusion of different feed oil sources rich in omega-3 fatty acids on the production performance of Japanese quail. The feeding trial was conducted in 360 numbers of day old Japanese quail broiler chicks for five weeks (0 - 5 week) with different oil sources-Palm oil - PO, Linseed oil-LO and Sardine Fish oil-SO with various inclusion levels of different sources of omega-3 fatty acids (T1-PO 4%; T2 LO 4%:T3 LO 3% + SO 1%; T4 LO 2% +SO 2%; T5 LO 1% + SO 3%; T6 SO 4%) with six replicates with ten birds in each replicate. All the diets were isocaloric and isonitrogenous. Different oil sources (palm oil/linseed oil/sardine oil) in the Japanese quails ration had no significant effect on average daily gain, feed consumption and feed conversion efficiency


Author(s):  
Hadeer Zakaria ◽  
Tarek M. Mostafa ◽  
Gamal A. El-Azab ◽  
Nagy AH Sayed-Ahmed

Abstract. Background: Elevated homocysteine levels and malnutrition are frequently detected in hemodialysis patients and are believed to exacerbate cardiovascular comorbidities. Omega-3 fatty acids have been postulated to lower homocysteine levels by up-regulating metabolic enzymes and improving substrate availability for homocysteine degradation. Additionally, it has been suggested that prevention of folate depletion by vitamin E consumption decreases homocysteine levels. However, data on the effect of omega-3 fatty acids and/or vitamin E on homocysteine levels and nutritional status have been inconclusive. Therefore, this study was planned to examine the effect of combined supplementation of fish oil, as a source of omega-3 fatty acids, with wheat germ oil, as a source of vitamin E, on homocysteine and nutritional indices in hemodialysis patients. Methods: This study was a randomized, double-blind, placebo-controlled trial. Forty-six hemodialysis patients were randomly assigned to two equally-sized groups; a supplemented group who received 3000 mg/day of fish oil [1053 mg omega-3 fatty acids] plus 300 mg/day of wheat germ oil [0.765 mg vitamin E], and a matched placebo group who received placebo capsules for 4 months. Serum homocysteine and different nutritional indices were measured before and after the intervention. Results: Twenty patients in each group completed the study. At the end of the study, there were no significant changes in homocysteine levels and in the nutritional indices neither in the supplemented nor in the placebo-control groups (p > 0.05). Conclusions: Fish oil and wheat germ oil combination did not produce significant effects on serum homocysteine levels and nutritional indices of hemodialysis patients.


Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1811
Author(s):  
Ella Aitta ◽  
Alexis Marsol-Vall ◽  
Annelie Damerau ◽  
Baoru Yang

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.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ling-Yan Li ◽  
Xu Wang ◽  
Ting-Chuan Zhang ◽  
Zong-Jun Liu ◽  
Jun-Qing Gao

Abstract This experiment proposed to investigate the efficiency of omega 3 fatty acids from fish that improves autoimmune against myocarditis in the rat. Fish oil was extracted from fresh Tuna fish and performed FAME analysis and mice bioassay. The autoimmune myocarditis was induced by subcutaneous injection of porcine cardiac myosin (PCM) into the footpads of rats on the first and seventh day. Rats were dissected on the 21st day to analyze the histopathological, hemodynamic, echocardiographic factors, and immunohistochemistry expressions. In the study, 73.90% of total fatty acids were recorded. Histological analysis revealed that omega 3 fatty acids administrated groups showed tremendous development in the multifocal myocardia hyaline degeneration and necrosis with inflammatory changes. Moreover, omega 3 fatty acids inhabited the expressions of inflammatory cells (CD4, CD8 and CD11b) and suppressed the level of NF-κB. The echocardiographic factors such as heartbeat, SBP, DBP, levels of LVDs, LVDd, LVPW percentage of LVFS, EF, expression levels of inflammatory cytokines (TNF, IL-1β, IFN-ɤ, IL-2, and IL-6) also significantly suppressed by omega 3 fatty acids. Hence, the present study proved that consuming fatty acid-enriched fish might be a successful therapy for improving the inflammatory profile, regenerates the heart tissues, and controlled the production of inflammatory cells.


2011 ◽  
Vol 33 (4) ◽  
pp. 436-443 ◽  
Author(s):  
D. Kromhout ◽  
S. Yasuda ◽  
J. M. Geleijnse ◽  
H. Shimokawa

LWT ◽  
2021 ◽  
pp. 112064
Author(s):  
Ranko S. Romanić ◽  
Tanja Z. Lužaić ◽  
Bojana Đ. Radić

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

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.


Cancer ◽  
1990 ◽  
Vol 66 (11) ◽  
pp. 2350-2356 ◽  
Author(s):  
Eleanor E. Deschner ◽  
Julia S. Lytle ◽  
George Wong ◽  
Jeanne F. Ruperto ◽  
Harold L. Newmark

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