Etlik Piliç Saf Hatlarında Foot Pad Dermatitis Düzeylerinin Yumurta Verim Dönemi Özellikleri ile İlişkisi
DOI:
https://doi.org/10.24925/turjaf.v11i7.1253-1259.6136Anahtar Kelimeler:
Etlik piliç- Saf hat- Foot pad dermatitis- Yumurta verimi- DöllülükÖzet
Bu çalışma, Eskişehir Geçit Kuşağı Tarımsal Araştırma Enstitüsü (EGKTAE) Tavuk Islah işletmesinde ıslahı gerçekleştirilen 2 saf baba (B1 ve B2) ile 3 saf ana (A1, A2 ve A3) hattında 14-42 haftalar arasında yürütülmüştür. Tüm saf hatlarda artan yaşla birlikte FPD skorlarında artış görülmüştür. Canlı ağırlıkların daha yüksek olduğu baba hatlarında (B1 ve B2) 14 haftalık yaşta daha düşük FPD skorları görülürken, 42 haftalık yaşta ana hatlarından (A1, A2 ve A3) daha yüksek olmuştur. Ana hatlarında 30 ve 42 haftalık yaşlarda baba hatlarına göre daha yüksek yumurta verimi ve kuluçkalık yumurta verimi elde edilmiş ve hatlar arasındaki farklılıklar önemli bulunmuştur (P<0,01). Yumurtlama döneminde A1, A2, A3, B1 ve B2 saf hatlarında gerçekleşen kuluçkalık yumurta oranları sırasıyla %98,55, %96,68, %97,75, %96,39 ve %97,23 olarak belirlenmiştir. Saf hatlarda yumurta ağırlıkları bakımından farklılıklar önemli bulunmuştur (P<0,01). Döllülük oranları bakımından genotipler arasında önemli farklılıklar belirlenmiştir (P<0,01). Ebeveynlerin 14, 20, 30 ve 42 haftalık yaşlarındaki canlı ağırlıkları ile FPD skorları arasında belirlenen korelasyon katsayıları sırasıyla 0,70, 0,64, 0,72 ve 0,67 bulunmuştur (P<0,01). 42. hafta yumurta verimi ve kuluçkalık yumurta verimi ile FPD değerleri arasında -0,56 ve -0,54’lük korelasyon katsayıları belirlenmiştir (P<0,01). Döllülük oranları ile canlı ağırlıklar arasındaki korelasyon katsayıları önemli bulunmamıştır. Canlı ağırlıklar ile yumurta verimi ve kuluçkalık yumurta verimi arasındaki önemli düzeyde negatif yönlü korelasyonlar bulunmuştur (P<0,01). Sonuç olarak, CA ve FPD düzeyleri baba hatlarında daha yüksek bulunurken, KYV bakımından ana hatları üstünlük sağlamıştır. Artan CA ile FPD düzeyindeki artış üreme performansındaki düşüşe katkı sağlamış olsa da döllülük oranı üzerinde olumsuz bir etki ortaya çıkmamıştır.
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