Emel GÜRBÜZ, TAHİR BALEVİ, BEHİÇ COŞKUN, ÖZCAN BARIŞ ÇİTİL

Effect of adding linseed and selenium to diets of layer hen’s on performance, egg fatty acid composition and selenium content

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.

Yumurtacı tavuk rasyonlarına keten tohumu ve selenyum ilavesinin performans, yumurta yağ asidi kompozisyonu ve selenyum içeriğine etkisi

In 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.

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