Effects of dietary energy on antioxidant capacity, glucose–lipid metabolism and meat fatty acid profile of Holstein bulls at different ages

2020 ◽  
Author(s):  
Haibo Wang ◽  
Wenjing Niu ◽  
Fei Wu ◽  
Xinjun Qiu ◽  
Zhantao Yu ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Metabolism ◽  
Antioxidant Capacity ◽  
Fatty Acid Profile ◽  
Dietary Energy ◽  
Different Ages ◽  
Holstein Bulls

scholarly journals Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

2010 ◽  
Vol 55 (No. 11) ◽  
pp. 479-487 ◽  
Author(s):  
L. Bartoň ◽  
D. Bureš ◽  
V. Kudrna
Keyword(s):  
Fatty Acid ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Dry Matter ◽  
Intramuscular Fat ◽  
Quality Parameters ◽  
Dietary Energy ◽  
Maize Silage ◽  
Different Types ◽  
Longissimus Lumborum

The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (CF), Charolais (CH) and Charolais × Czech Fleckvieh (CH × CF) bulls. The animals were fed two mixed diets: MS (based on maize silage) and LCS (based on legume-cereal mixture silage and lucerne silages) with different concentrations of dietary energy and fatty acids. The MLL from CH bulls had the lowest content of dry matter (P < 0.01), less protein (P < 0.01) and lighter meat (P < 0.01) compared to the CF. The extensive LCS diet reduced dry matter (P < 0.01) and intramuscular fat (P < 0.01) and increased the content of hydroxyproline (P < 0.05). The CH bulls exhibited higher PUFA n-3 (P < 0.05) and lower MUFA (P < 0.05) compared to the CF, with the CH × CF being intermediate. The LCS diet enhanced the proportions of PUFA (P < 0.05) and PUFA n-3 (P < 0.001) and reduced MUFA (P < 0.001). In conclusion, both breed and diet affected the meat quality and fatty acid profile of the intramuscular fat of the bulls. The replacement of maize silage with the legume-cereal mixture and lucerne silages in the diet reduced the concentration of intramuscular fat and improved its fatty acid profile from the human nutrition perspective.

scholarly journals Dietary Flaxseed Meal and Chromium: a Nutritional Intervention in Broiler Chicken to Study the Prospective Growth Performance, Tissue Lipid Composition and Metabolism, Health Indices, and Serum Lipid Chemistry

2020 ◽  
Author(s):  
Nasir Akbar Mir ◽  
Praveen K. Tyagi ◽  
Jubeda Begum ◽  
Kapil Dev ◽  
Avishek Biswas ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Metabolism ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Serum Lipid ◽  
Broiler Chicken ◽  
Chicken Meat ◽  
Negative Effects ◽  
Health Indices ◽  
Flaxseed Meal

Abstract Background:Flaxseed in a richest terrestrial source of w-3 fatty acid – alpha-linolenic acid (ALA) which can be incorporated in chicken meat when it is included in chicken ration. ALA can further be acted up on by desaturating enzymes to generate PUFA such as EPA and DHA which increase the health value of chicken meat. However, dietary flaxseed results in concurrent increase in lipid oxidation due higher unsaturation and negative impact on chicken growth performance. These negative effects of flaxseed feeding can be reversed by chromium supplementation in broiler chicken. Thus, this study investigated growth performance and efficiency, lipid composition, lipid metabolism, health indices, and serum lipid chemistry of broiler chicken fed flaxseed meal (FSM) and chromium (Cr).Results:Feeding of 100 g FSM exerted negative effects on the growth performance during starter phase only (0-3 weeks) and overall growth efficiency parameters in broiler chicken, whereas, Cr supplementation reversed these negative effects.100 g FSM reduced abdominal fat in chicken and Cr supplementation linearly decreased it with minimum at 1.5 mg Cr/kg diet.Feeding of 100 g FSM favourably improved the activities of lipid metabolism enzymes which resulted in improved fatty acid profile and health indices of chicken meat.No significant effect of Cr supplementation was observed on lipid metabolism, fatty acid profile, and health indices of chicken meat.100 g FSM decreased serum total cholesterol, triglyceride, cardiac risk ratio, atherogenic coefficient, and atherogenic index of plasma, whereas, Cr supplementation decreased these parameters linearly with increasing levels. Antioxidant enzyme activities and lipid peroxidation were increased by FSM, whereas, Cr supplementation linearly decreased them with increasing levels; and inverse trend was observed in serum HDL cholesterol levels.Conclusions: Feeding of 100 g FSM exert negative effects on growth performance of young chicken (0-3 weeks), favourably alter lipid metabolism which results in improved fatty acid profile and health indices of chicken meat. It improves the serum lipid profile and atherogenic indices in broiler chicken, but negatively affects the oxidative stability of lipids. However, Cr supplementation at the rate of 1.5 mg/kg diet successfully overcomes these negative effects of FSM feeding on growth performance and lipid oxidative stability.

Whey protein concentrate improves antioxidant capacity, faecal microbiota and fatty acid profile of growing piglets

2019 ◽  
Vol 157 (1) ◽  
pp. 72-82 ◽  
Author(s):  
I. Kafantaris ◽  
D. Stagos ◽  
B. Kotsampasi ◽  
D. Kantas ◽  
V. Koukoumis ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Fatty Acid ◽  
Antioxidant Capacity ◽  
Whey Protein ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Whey Protein Concentrate ◽  
Control Group ◽  
Protein Concentrate ◽  
Experimental Diet

AbstractA feeding trial involving growing piglets was undertaken to establish whether feed supplemented with whey protein concentrate (WPC), exhibiting antioxidant properties, had any effects on welfare and meat quality. For that purpose, 48 weaned piglets (20-days-old) were assigned to two experimental groups receiving standard or experimental diet for 30 days. Blood and tissue collection were performed at various time-points. The following oxidative stress markers were assessed: reduced glutathione (GSH), catalase activity, total antioxidant capacity (TAC), thiobarbituric acid reactive substances (TBARS), protein carbonyls (CARB) and hydrogen peroxide (H2O2) decomposition activity. The effects on bacterial growth and the fatty acid profile of meat were also assessed. Results showed that piglets fed with the WPC-supplemented diet had significantly increased antioxidant mechanisms in almost all tissues tested, as indicated by increases in GSH, H2O2 decomposition activity and TAC compared with the control group. Piglets fed with the experimental diet exhibited decreased oxidative stress-induced damage to lipids and proteins, as shown by decreases in TBARS and CARB in the WPC group compared with the control group. In addition, the experimental diet enhanced growth of facultative probiotic bacteria and lactic acid bacteria and inhibited growth of pathogen populations. In addition, WPC inclusion in piglets' diet increased n-3 fatty acids significantly and decreased n-6/n-3 ratio significantly compared with the control group. The current study showed that WPC inclusion in the diet had a significant effect on welfare and meat quality of growing piglets.

Effects of dietary curcumin on growth, antioxidant capacity, fatty acid composition and expression of lipid metabolism-related genes of large yellow croaker fed a high-fat diet

2020 ◽  
pp. 1-10
Author(s):  
Renlei Ji ◽  
Xiaojun Xiang ◽  
Xueshan Li ◽  
Kangsen Mai ◽  
Qinghui Ai
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Lipid Metabolism ◽  
Antioxidant Capacity ◽  
High Fat Diet ◽  
Control Group ◽  
Large Yellow Croaker ◽  
Lipid Deposition ◽  
High Fat ◽  
Hepatic Lipid

Abstract A 10-week feeding trial was conducted to investigate the effect of dietary curcumin (CC) on growth antioxidant responses, fatty acid composition, and expression of lipid metabolism-related genes of large yellow croaker fed a high-fat diet (HFD). Four diets (lipid level at 18 %) were formulated with different levels of curcumin (0, 0·02, 0·04 and 0·06 %). The best growth performance was found in the 0·04 % curcumin group, with the body and hepatic lipid levels lower than the control group (0 % CC). The content of TAG, total cholesterol and LDL-cholesterol was the least in the 0·06 % curcumin group. The lowest malondialdehyde and the highest superoxide dismutase, catalase and total antioxidant capacity were observed in the 0·04 % curcumin group. The 0·04 % curcumin group had higher expression of Δ6fad, elovl5 and elovl4 and showed higher hepatic n-6 and n-3 PUFA. Expression of ppara, cpt1, and aco was significantly increased, while expression of srebp1 and fas was dramatically decreased in curcumin groups compared with the control group. Overall, 0·04 % curcumin supplementation could mitigate the negative effects caused by HFD and promote growth via reducing hepatic lipid deposition, improving antioxidant activity and increasing PUFA of large yellow croaker. To conclude, abnormal hepatic lipid deposition was probably due to increased fatty acid oxidation and reduced de novo synthesis of fatty acids.

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