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Mevcut çalışma çakşır (Ferula eleaochytris) kökü tozunun Nick Brown yumurtacılarda yumurtlama performansı, yumurta kalitesi, yumurta kolesterolü ve bazı kan parametreleri üzerine etkilerini belirlemek amacıyla yürütülmüştür. Denemedeki otuz dört haftalık yaştaki yumurtacı tavuklarda, benzer canlı ağırlığa göre her birinde 18 hayvan bulunan 4 gruba ayrılmış ve 8 hafta boyunca bireysel kafeslerde yetiştirilmişlerdir. Muamele 4 gruptan oluşup, bunlar standart yumurtacı tavuk yemlerine ilaveten 0, 2, 4 ve 8 g/kg çakşır (Ferula eleaochytris) kökü tozu katkısı ile beslenmişlerdir. Deneme boyunca 16: 8 saatlik aydınlık: karanlık ışıklandırma programı kullanılmış ve yem ve su serbest olarak verilmiştir.Elde edilen bulgular çakşır (Ferula eleaochytris) kökü tozunun canlı ağırlık, yem tüketimi, yemden yararlanma oranı, yumurta verimi ve yumurta ağırlığını önemli düzeyde etkilemediğini (P>0.05) göstermiştir. Denemede kullanılan çakşır kökü tozunun, plazma glukoz konsantrasyonunu arttırdığı (P0.05).Anahtar Kelimeler: Çakşır (Ferula eleaochytris) kökü tozu, Yumurta Verimi ve Kalitesi, Kan Parametreleri,Yumurta Kolesterol, Kalsiyum The present study was conducted to evaluate whether dietary Ferula eleaochytris powder would affect laying performance, egg quality and egg cholesterol level of Nick Brown layers. Thirty four weeks old layers were divided into 4 groups of similar mean weight, comprising 18 birds each. The birds were fed standard layer diets containing 0, 2, 4 or 8 g Ferula eleaochytris powder for 8 weeks period. The birds were housed in individual cages in a complete randomized design. A 16:8 hours light:dark photoperiod was employed. Feed and water were given ad libitum.The results showed that Ferula eleaochytris powder inclusion did not have significant (P>0.05) effects on body weight, feed intake, feed conversion efficiency, egg yield (production), egg mass and egg weight. However, Ferula eleaochytris powder inclusion affected size index (P0.05).Key Words: Ferula eleaochytris powder, Egg Production and Quality, Blood Parameters, Egg Cholesterol, Calcium 52

TEZ6445 Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2007. Kaynakça (s.48-52) var. viii, 53 s. : rnk.res. ; 29 cm. The present study was conducted to evaluate whether dietary lycopene would affect laying performance and egg quality of Brown layers. Twenty eight weeks old layers were divided into 4 groups of similar mean weight, comprising 18 birds each. The birds were fed standard layer diets containing 0, 100, 200 or 400 ppm lycopene (Lyc-O-Mato® containing 0.8% Lycopene) for 8 weeks period. The birds were housed in individual cages in a complete randomized design. A 16:8 hours light:dark photoperiod was employed. Feed and water were given ad libitum. Laying performance was assessed by recording feed intake, egg weight, egg production daily and egg quality weekly. The results showed that lycopene supplementation did not have significant (P>0.05) effects on feed intake, egg weight, egg mass, feed conversion efficiency, number of cracked eggs, and body weight. However, dietary supplemental lycopene increased yolk color score, shell weight and thickness (P0.05) göstermiştir. Fakat, yeme likopen katkısı yumurta sarısı skorunu, kabuk kalınlığı ve ağırlığını arttırmıştır (P