Effect of Adding Linseed and Selenium to Diets of Layer Hen’s on Performance, Egg Fatty Acid Composition and Selenium Content

Abstract

SummaryIn a 4×3 factorial experiment, six hundred 31-week-old laying hens were fed diets containing 0, 25, 50 and 100 g/kg linseed with control, 0.3 mg/kg organic selenium (OrSe) and 0.3 mg/kg inorganic selenium (InSe) to determine the effects of diet on performance, eggshell parameters, egg fatty acid composition and selenium (Se) content of eggs. Laying hens were randomly assigned to 12 experimental groups with 5 replications. Linseed supplementation decreased egg production (d 1-30), feed consumption (d 1-30 and 1-90) and egg weight (d 60-90 and 1-90). Shell weight and thickness decreased when dietary linseed was increased. There were interactions between Se and linseed in feed consumption, feed efficiency, damaged egg ratio and shell thickness. The inclusion of InSe and OrSe increased the Se content of the eggs. Docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), α-linolenic acid (ALA) and n-3 fatty acid concentrations in egg yolks increased with increasing dietary linseed. There were also interactions between linseed and Se in ALA and n-3 fatty acid concentrations. In conclusion, the addition of linseed to the diets increased DHA, EPA, ALA and n-3 fatty acid concentrations in egg yolks, and the addition of Se increased the Se content of the eggs. Egg fatty acids (ALA, n-3 fatty acid) were increased by supplementing dietary linseed with OrSe. Keywords: Egg, Linseed, n-3 fatty acid composition, Performance, Selenium Yumurtacı Tavuk Rasyonlarına Keten Tohumu ve Selenyum İlavesinin Performans, Yumurta Yağ Asidi Kompozisyonu ve Selenyum İçeriğine EtkisiÖzet Dizaynı 4×3 faktöriyel olarak yapılan bu çalışma, 31 haftalık yaşta 600 adet yumurtacı tavuk rasyonlarına 0, 25, 50 ve 100 g/kg keten tohumu ile birlikte kontrol, 0.3 mg/kg organik selenyum (OrSe) ve 0.3 mg/kg inorganik selenyum (InSe) ilave edilmesinin performans, yumurta kabuğu parametreleri, yumurta yağ asidi kompozisyonları ve yumurta selenyum (Se) içeriğine etkilerinin belirlenmesi amacıyla yapıldı. Yumurtacı tavuklar rastgele herbiri 5 alt grup içeren 12 gruba ayrıldı. Keten tohumu ilavesi yumurta verimini (1-30 gün), yem tüketimini (1-30 ve 1-90 gün) ve yumurta ağırlığını (60-90 ve 1-90 gün) düşürmüştür. Yumurta kabuk ağırlığı ve kalınlığı rasyona keten tohumu ilavesiyle birlikte azalmıştır. Yem tüketimi, yemden yararlanma, hasarlı yumurta oranı ve yumurta kabuk kalınlığında Se ve keten tohumu arasında intereaksiyon bulunmuştur. InSe ve OrSe ilavesi yumurta selenyum içeriklerini arttırmıştır. Yumurta sarısında dokosaheksaenoik asit (DHA) ve eikosapentaenoik asit (EPA), α-linolenik asit (ALA) ve n-3 yağ asidi konsantrasyonları rasyona keten tohumu ilavesiyle artmıştır. ALA ve n-3 yağ asidi konsantrasyonlarında keten tohumu ve Se arasında interaksiyon bulunmuştur. Sonuç olarak rasyonlara keten tohumu ilavesi yumurta sarısında DHA, EPA, ALA ve n-3 yağ asidi konsantrasyonlarını, Se ilavesi ise yumurta Se içeriğini arttırmıştır. Yumurta yağ asitleri (ALA, n-3 yağ asitleri) rasyona keten tohumu ile birlikte OrSe ilave edilmesiyle birlikte artmıştır.

Effect of Dietary Incorporation of Linseed Alone or Together with Tomato-Red Pepper Mix on Laying Hens’ Egg Yolk Fatty Acids Profile and Health Lipid Indexes

“…Yassein et al [68] observed an increase of 0.54% in the ALA amount in egg yolk of layers fed on a diet which contained 5% of linseed. However, other studies [69,70] using linseed dietary incorporation rates very close (5% and 4.32%) to that used in this study (4.5%), reported an increase of up to 3.18% and 2.87%, respectively, larger than that recorded in this paper.…”

“…It has been reported that the absorption rate of ALA increases with the age of hens [63,71]. This hypothesis is quite plausible since, in previous works [69,70], egg yolks in which the concentration of ALA was determined were respectively laid by hens 4 weeks and 7 weeks older than those used in the current experiment. Moreover, Yannakopoulos et al [35] studied the effect of the dietary addition of flaxseed on the egg yolk fatty acids composition from the 24th week of age to the 60th week of age.…”

Effects on Performance, Egg Quality Criteria and Cholesterol Level of Adding Different Ratios Flaxseed Oil Instead of Sunflower Oil to Compound Feed of Laying Hens

“…The overall findings of the present study concerning egg yield are similar to those reported by Küçükersan (2004), Ezhil Valavan et al (2006 and Gürbüz et al (2012). In a similar study, Balevi & Coskun (2003) found that egg yield at the end of 56 days was 69.96% for the group fed a ration containing sunflower oil, and 76.81% for the group fed a ration containing flaxseed oil.…”

Effects of replacing Na selenite in laying hen feed with selenized glucose on production performance, egg quality, egg selenium content, microbial population, immunological response, antioxidant enzymes, and fatty acid composition

“… Kralik et al (2013) discovered that adding organic Se to broiler feed reduced the n-6/n-3 ratio in thigh muscles. Similarly, Gurbuz et al (2012) found that supplementing with organic Se and flax seed increased omega-3 fatty acid levels in egg yolk. According to the researchers, Se likely regulates prostaglandin synthesis by increasing the activity of the GSH-Px enzyme involved in arachidonic acid metabolism ( Pappas et al, 2005 ).…”