Bir Nil tilapya (Oreochromis niloticus L., 1758) populasyonunda BLUP yöntemiyle hasat ağırlığı için damızlık değer tahmini

Özet: Bu çalışmada, bir Nil tilapyası (Oreochromis niloticus) populasyonunda yaş, cinsiyet ve ağırlık ölçümleri kullanılarak; hasat ağırlığı için, damızlık değerleri, En İyi Doğrusal Sapmasız Tahminleme (BLUP) yöntemi kullanılarak tahmin edilmiştir. Herhangi bir seleksiyon uygulanmamış bu tilapya populasyonunda hasat ağırlığı için tahmin edilen ortalama damızlık değer tahmini, 0,03 bulunmuştur. Erkek tilapya balıklarının hasat ağırlığı için ortalama damızlık değer tahminleri (2,908), dişilerin ortalama damızlık değer tahminlerinden (-2,740) daha yüksek bulunmuş olup, cinsiyet ile hasat ağırlığına ait damızlık değer tahminleri arasındaki ilişki önemli bulunmuştur. Damızlık seçiminde, bir bireyin tüm özellikleri için, en güvenilir tahmin imkanını veren BLUP yöntemi kullanılmıştır.

Breeding value estimation for harvest weight in a Nile tilapia (Oreochromis niloticus L., 1758) population using BLUP

Abstract: In this study, breeding values in a Nile Tilapia (Oreochromis niloticus) population for harvest weight was estimated according to weight, age and sex data using Best Linear Unbiased Prediction (BLUP) method. Mean estimated breeding value (EBV) for harvest weight in this unselected tilapia population was found 0.03. Mean EBV of male fish (2.908) for harvest weight was found higher than the mean EBV of females (-2.740) and relation between sex and estimated breeding values of harvest weight was found significant according to a t test. The BLUP method which gives opportunity of the most reliable estimations for all traits of an individual in selecting broodstock was used

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