Ayşen Fırat ZOHOURİ, Tülay ENGİZEK, Betül SOYTÜRK, Gülhan TÜRKMEN, Süleyman K.TEKELİ

Yumurta tavuklarında yeme katılan alüminyumun metabolizma,yumurta verimi ve yumurta kalitesi üzerindeki etkisi

Yeme katılan alüminyumun metabolizma, yumurta üretimi ve yumurta kalitesi üzerindeki etkilerini saptamak amacıyla 25 haftalık 24 adet Nick Brown yumurta tavuğu kullanılmıştır. Deneme süresi 40 gündür. Deneme grubunun yemine alüminyum sülfat şeklinde 2 g/kg alüminyum ilave edilmiştir. Bireysel yumurta üretimleri deneme süresince günlük olarak kaydedilmiştir. 0., 20. ve 40. günlerde vücut ağırlıkları kaydedilmiş, yumurtalar toplanmış ve kan numuneleri alınmıştır. Toplanan yumurtalar tartılmıştır. Özgül ağırlıkları saptanmıştır. Kabuk kalınlığı ve ağırlığı ölçülmüştür. Serumlarda alanin amino transferaz (ALT), aspartat amino transferaz (AST), laktat dehidrojenaz (LDH), kolesterol, kalsiyum (Ca), inorganik fosfor (Pi) düzeyleri saptanmıştır.40. günde toplanan yumurtalarda ve serumda, yemde ve içme suyunda alüminyum analizleri yapılmıştır. Vücut ağırlığı kontrol ve deneme grupları arasında farklı bulunmamıştır. Yumurta kabuğu kalınlığı 20. günde yemdeki Al tarafından önemli ölçüde azaltılmıştır (p

Effect on metabolism,egg production and egg shell quality of dietary aluminum in laying hens

Twenty four Nick Brown laying hens, 25 wk of age, were used to de¬termine the effect of dietary aluminum on metabolism, egg production and egg shell quality.The experiment was conducted for 40 days. Dietary aluminum supplementations for experimental group were done as 2 g/kg aluminum in form of aluminum sulfate. Individual egg production records were kept daily throughout the experiment. On Days 0, 20 and 40, body weight data were recorded, eggs were collected, and blood samples were taken. Collected eggs were weighed. Egg specific gravity was determined. Shell thickness and weight were measured. Alanin amino transferase (ALT), aspartat amino transferase (AST), lactat dehydrogenase (LDH), cholesterol, calcium (Ca), inorganic phosphorus (Pi) determinations were done in sera. Aluminum analyses were done in sera and eggs collected on Day 40, and in basal diet and drinking water. Body weight was not different between control and experimental groups. Egg shell thickness was significantly reduced by dietary Al on Day 20 (p

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