KEMAL KARABAĞ, SEZAİ ALKAN, MEHMET MENDEŞ

Classification tree method for determining factors that affecting hatchability in chukar partridge (Alectoris chukar) eggs

Bu çalışma, kınalı kekliklerde (Alectoris chukar) sınıflandırma ağacı yöntemi (CTM) kullanılarak çıkış gücüne etki eden bazı dış yumurta özelliklerinin etkilerini araştırmak için yürütülmüştür. 90 dişi keklikten 1193 yumurta toplanmış ve 847 döllü yumurtadan 671 civciv elde edilmiştir. Kuluçkadan çıkış, döllülük ve çıkış gücü sırasıyla %56.2, %79.2 ve %71.0 olarak tespit edilmiştir. Dış yumurta özelliklerinden dört değişkenin (yumurta ağırlığı=EW, yumurta hacmi=EV, yumurta uzunluğu=EL ve yumurta genişliği=EB) çıkış gücü üzerinde önemli etkiye sahip olduğu CTM kullanılarak %75.6 isabetle tahmin edilmiştir. Çıkış gücü 18.1 g’dan hafif yumurtalarda %56.0 olarak gerçekleşirken, 18.1 g’dan ağır yumurtalarda %80.0 olarak gerçekleşmiştir. EV ve EB sırasıyla 27.2 ve 3.14 cm’den büyük olduğunda H yaklaşık %82.1 olmuştur. Ancak, EV 27.2’den büyük ve EB 3.14 cm’ den küçük olduğunda istenilen düzeyde çıkış meydana gelmemiştir. EW 18.1 g’dan büyük olduğunda çıkış gücü EV, EL ve EB tarafından önemli derecede etkilenmiştir. Bu durum döllü yumurtalardan çıkış için belirteç olarak değerlendirilebilir. Bu rapor kınalı kekliklerde dış yumurta özelliklerinin çıkış gücüne etkisinin CTM ile gösterildiği ilk rapordur.

Anahtar Kelimeler:

Alectoris chukar, kuşlar, sınıflandırma, yumurtadan çıkış gücü, yumurta üretimi, Türkiye, filogeni, performans özellikleri, döl verimi, yumurta ağırlığı

Kınalı keklik (Alectoris chukar) yumurtalarında çıkış gücüne etki eden faktörlerin sınıflandırma ağacı yöntemi ile belirlenmesi

The study was carried out to investigate the effects of some external egg traits on hatchability using classification tree method (CTM) in Chukar partridge (Alectoris chukar). 1193 eggs were collected from 90 female partridges and 671 chicks were obtained from 847 fertile eggs. Overall hatching, fertility and hatchability of fertile eggs were determined as 56.2%, 79.2%, and 71.0%, respectively. Four variables (egg weight=EW, egg volume=EV, egg length=EL and egg breadth=EB) from external egg traits have a significant effect on hatchability was estimated with 75.6% accuracy by using the CTM. Hatchability (H) was occurred as 80.0% at higher eggs than 18.1 g while H was found as 56.0% at lesser eggs than 18.1 g. When EV and EB were higher than 27.2 and 3.14 cm respectively, H was around 82.1%. But, when EV was higher than 27.2 and EB was lower than 3.14 cm (Node 9) respectively, hatchability was lower than desired. EW greater than 18.1 g hatchability was affected significantly by EV, EL and EB. This situation can be regarded as an indicator for hatching from fertilized eggs. The first report on this subject which the external egg traits of Chukar partridges influenced on hatchability were demonstrated by CTM.

Keywords:

Alectoris chukar, birds, classification, egg hatchability, egg production, Turkey, phylogeny, performance traits, fertility, egg weight,

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