Bu proje, Ankara Tavukçuluk Araştırma Enstitüsünde bulunan saf hatlardan elde edilen beyaz yumurtacı ebeveyn ve bunların hibritlerinin çeşitli verim özelliklerinin tespiti amacıyla yapılmıştır. Projede 2 ebeveyn (Maron Line x Blue Line, Black Line x Maroon Line ) ve 2 hibrit (Brown Line x Blue Line, Black Line x Blue Line ) genotipleri ile çalışılmıştır. Bu genotiplerde cinsi olgunluk yaşı ve ağırlığı, ilk on yumurta ağırlığı, yumurta verimi ve ağırlığı, yaşama gücü, canlı ağırlık değişimi ile dönem sonu canlı ağırlıkları tespit edilmiştir. Adı geçen genotiplerden 16 haftalık yaşta iken 138’ er adet ebeveyn ve 138’ er adet de hibrit olmak üzere toplam 552 adet piliç çevre kontrollü kümesteki kafeslere yerleştirilmiş ve test 72. hafta sonunda sona erdirilmiştir. Ebeveyn genotiplerde yukarıdaki sıraya göre cinsi olgunluk yaşı; 150 ve 148 gün, cinsi olgunluk ağırlığı; 1360 ve 1395 g, ilk 10 yumurta ağırlığı; 44.4 ve 45,0 g, yumurta verimi 301 ve 301 adet, yumurta ağırlığı 59,5 ve 60,1 g, dönem sonu ( 72. hafta ) canlı ağırlık; 1675 ve 1790 g, tavuk dönemi yaşama gücü ( % ); 94,21 ve 97,83 olarak bulunmuştur. Hibrit genotiplerde ise yukarıdaki sıraya göre cinsi olgunluk yaşı; 148 ve 146 gün, cinsi olgunluk ağırlığı; 1342 ve 1391 g, yumurta verimi 304 ve 307 adet, yumurta ağırlığı; 58,5 ve 58,7 g, dönem sonu (72. hafta) canlı ağırlık; 1658 ve 1785 g, tavuk dönemi yaşama gücü ( % ); 97,1 ve 94,9 olarak bulunmuştur

In this research, some important yields of the white layer hybrid parents and its hybrids of the pure lines which have developed by Ankara Poultry research Institute were tried to ferret out. Two parrent genotypes (Maron Line x Blue Line and Black Line x Maroon Line) and two hybrid genotypes (Brown Line x Blue Line and Black Line x Blue Line ) were studied. The age of first egg, first ten egg’s weight, total egg production, average egg weight, livability, live weight changes and live weight at the end of the production period of these genotypes were exanimated. Total 552 birds were bred in the cages of an environmentally controlled poultry house from 138 parent and 138 hybrids at each afore mentioned genotypes at the age of 16 weeks. Research ended at the age of 72 weeks. In the same order given above for the parent genotypes; the age of first egg was founded 149 and 148 days; live weight at the age of first egg was founded 1360 and 1395 grams, first ten egg’s weight was founded 44,4 and 45 grams; total egg production was founded 301 and 301 units, egg weight was founded 59,5 and 60.1 grams, live weight at the end of the production period (72 weeks) was founded 1679 and 1805 grams, production period livability was founded 94,21 and 97,83 %. In the same order given above for the hybrid genotypes; the age of first egg was founded 148 and 146 days; live weight at the age of first egg was founded 1342 and 1391 grams; total egg production was founded 304 and 307 units, egg weight was founded 58,5 and 58,7 grams; live weight at the end of the production period (72 weeks) was founded 1662 and 1758 grams; production period livability was founded 97,1 and 94,9 %.