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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0522    [Accepted] Published online January 4, 2019.
The impact of dietary linseed oil and pomegranate peel extract on broiler growth, carcass traits, serum lipid profile, and meat fatty acid, phenol, and flavonoid contents
Asmaa TY Kishawy1, Shimaa A Amer1, Mohamed E Abd El-Hack2, Islam M Saadeldin3,*  , Ayman A Swelum3
1Department of Nutrition & Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
2Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
3Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
Correspondence:  Islam M Saadeldin, Tel: 966530910740, Fax: 966530910740, Email: islamms@snu.ac.kr / isaadeldin@ksu.edu.sa
Received: 11 July 2018   • Revised: 25 September 2018   • Accepted: 31 December 2018
Abstract
The current study aimed to replace soybean oil in broiler diets with linseed oil, which is rich in omega-3 fatty acid supplemented with pomegranate peel extract (PPE) and measured its effect on broiler performance, carcass traits, lipid profile, as well as fatty acids composition, phenols and flavonoids content of broiler muscles and immunity of broiler chicks. A total of 300 1-day-old Cobb chicks were randomly allotted into six experimental groups, T1 fed on basal diet with soybean oil without any additives, T2 fed on basal diet with soybean oil with addition of 0.5g / kg diet PPE, T3 fed on fed on basal diet with soybean oil with addition of 1g / kg diet PPE, T4 fed on basal diet with linseed oil without any additives, T5 fed on basal diet with linseed oil with addition of 0.5g / kg diet PPE and T6 fed on basal diet with linseed oil with addition of 1g / kg diet PPE. PPE supplementation with 0.05 % improved final body weight with either soybean oil ration or linseed oil ration. PPE improved carcass dressing percentage in comparison with the control groups. Body fat levels decreased with increasing PPE levels, especially with a linseed oil diet. Replacing soybean oil with linseed oil decreased the total cholesterol and triacylglycerol levels in broiler serum. PPE supplementation decreased serum total cholesterol levels and increased high-density lipoprotein cholesterol levels. The content of the breast muscle alpha linolenic acid improved after replacement of soybean oil with linseed oil in broiler diets. PPE supplementation increased the phenol and flavonoid content in broiler meat and increased lysozyme activity. Thus, replacing soybean oil with linseed oil in broiler diets with the addition of PPE enriched muscle meat with omega-3 fatty acids and antioxidants and improved broiler immunity and their serum lipid profile.
Keywords: Pomegranate Peel Extract, Linseed Oil, Meat, Phenols; Polyunsaturated Fatty Acid; Flavonoid
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