Effects of dietary sepiolite on performance, egg quality and some blood parameters in laying hens

Abstract

The aim of this study was to determine the effects of dietary sepiolite on performance, egg quality, egg yolk cholesterol content and some blood parameters of laying hens during 22 weeks period. For this purpose a total of 135 Lohmann Brown laying hens, 38 weeks of age, were allocated to one control group and two treatment groups. Sepiolite was used at the level of 0, 0.5 and 1% for the diets of control group and the first and second treatment groups, respectively. Dietary sepiolite supplementation did not significantly affect feed intake, egg production, egg weight and feed conversion ratio. The values of egg breaking strength (p<0.01) and egg shell thickness (p<0.05) were increased, egg yolk cholesterol was decreased (p<0.05) by the usage of 1% sepiolite in the diet. Dietary treatments did not significantly affect egg shape index, egg albumen height, egg albumen index, egg yolk index and egg Haugh unit. Dietary sepiolite at 1% reduced cholesterol and triglyceride in serum (p<0.05) and increased total protein in serum (p<0.01). It was concluded that dietary supplementation of 1% sepiolite was effective feed additive in layer feeding due to the reduction in egg yolk cholesterol and improvement in egg shell quality

Keywords

• Blood parameters
• egg quality
• laying hen
• performance
• sepiolite

Yumurta tavuğu rasyonlarına sepiyolit ilavesinin performans, yumurta kalitesi ve bazı kanparametreleri üzerine etkisi

Abstract

Bu araştırma, yumurta tavuğu rasyonlarına sepiyolit ilavesinin 22 hafta süreyle performans, yumurta kalitesi ve bazı kan parametreleri üzerine etkilerini belirlemek amacıyla yapılmıştır. Bu amaçla 38 haftalık yaşta 135 adet Lohmann Brown yumurta tavuğu 1 kontrol ve 2 deneme grubuna ayrılmıştır. Sepiyolit kontrol, birinci ve ikinci deneme gruplarının rasyonlarında sırasıyla % 0, 0.5 ve 1 olacak şekilde ilave edilmiştir. Sepiyolit ilavesi yem tüketimi, yumurta verimi, yumurta ağırlığı ve yemden yararlanmayı etkilememiştir. Rasyonlarda %1 düzeyinde sepiyolit kullanılmasıyla yumurta kırılma mukavemeti (p<0.01) ve yumurta kabuk kalınlığı (p<0.05) artmış, yumurta kolesterol düzeyi (p<0.05) azalmıştır. Rasyonda sepiyolit bulunması yumurta şekil indeksi, ak yüksekliği, ak indeksi, sarı indeksi ve Haugh birimini önemli derecede etkilememiştir. Sepiyolitin %1 düzeyinde bulunması serum kolesterol ve trigliserit düzeylerini azaltmış (p<0.05), toplam protein düzeyini (p<0.01) artırmıştır. Sonuç olarak rasyona %1 düzeyinde sepiyolit ilavesi yumurta kolesterol düzeyini azaltması ve yumurta kabuk kalitesini iyileştirmesi bakımından yumurta tavuğu beslemede etkili bir yem katkı maddesi olacağı kanısına varılmıştır

Keywords

• Kan parametreleri
• performans
• sepiyolit
• yumurta kalitesi
• yumurta tavuğu

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