Bıldırcınlarda Tüy Rengine Göre Bazı Yumurta Kalite Özelliklerindeki Değişim ve Aralarındaki İlişkiler

Bu araştırmada Japon bıldırcınlarında (Coturnix coturnix japonica) tüy renginin yumurta kalitesini belirlemede kullanılan bazı özeliklere etkisi ve aralarındaki ilişkiler incelenmiştir. Araştırmada orta yaşlı (13 hafta) damızlık bıldırcınlardan elde edilen toplam 144 (77 siyah ve 77 beyaz tüylü) kuluçkalık yumurta kullanılmıştır. Yumurta ağırlığı (YA), yumurta boyu (YB), yumurta genişliği (YE) ve şekil indeksi (Şİ) yumurta kalitesi açısındna incelenen özellikler olmuş ve bu özellikler arasındaki korelasyon ile regresyon katsayıları incelenmiştir. Orjinal ve beyaz tüylü bıldırcın yumurtaları için sırasıyla 10.79 g ve 9.54 g YA, 31.59 mm ve 31.57 mm YB, 25.85 mm ve 24.68 mm YG, 81.86 ve 78.29 Şİ değerleri elde edilmiştir. Araştırma sonucunda siyah tüylü bıldırcın yumurtlarında YA, YG ve Şİ değerlerinin beyaz tüylülerden daha yüksek olduğu (P < 0.05), yumurta boylarının ise benzer olduğu (P > 0.05) bulunmuştur. Korelasyon katsayıları incelendiğinde sadece orjinal tüylü bıldırcınlarda YA ile YB, beyaz tüylülerde ise YA ile SI arasındaki korelasyon katsayısının önemli olduğu bulunmuştur (P < 0.05). Regresyon analizinde ise YA değerlerinin siyah tüylü bıldırcınlarda YB, beyaz tüylü bıldırcınlarda ise YG kullanılarak daha doğru tahmin edilebileceği tespit edilmiştir. Daha ayrıntılı ve kuluçka sonrasını da içine alan çalışmalar gerçekleştirilmesinin hem akademik hem de sektör gelişimi açısından faydalı olacağı düşünülmektedir.

Anahtar Kelimeler:

bıldırcın, tüy rengi, kuluçkalık yumurta kalitesi, korelasyon, regresyon

Changes in Some Egg Quality Parameters According to Plumage Colour in Quails and Their Relationships

The effect of plumage colours of Japanese quails (Coturnix coturnix japonica) on some egg quality parameters and their relations amongst were studied in this study. A total of 144 hatching eggs which were obtained from middle-aged (13 week) quail breeders having two different (original and white) plumage colours (77 orginal and 77 white) were used in the experiment. Egg weight (EW), egg length (EL), egg width (EWd) and shape index (SI) were studied parameters for egg quality. Coefficient correlation and regretion were analyzed for relation among these parameters. Average EW were 10.79 g and 9.54 g, EL were 31.59 mm and 31.57 mm, EWd were 25.85 mm and 24.68 mm, SI were 81.86 and 78.29 in eggs of quails with original and white plumage of this study respectively. EW, EWd and SI values were higher in quails with black feathers than those with white feathers (P < 0.05), but SI values were similar (P > 0.05) in both treatment groups in the experiment. When the correlation coefficients were examined, it was found that the correlation coefficient between EW and SI were only significant in the birds with original plumage and between EW and SI in birds with white plumage (P < 0.05). From regression analysis, it was found that the EW values can be estimated more accurately by using the EL in original plumages and the EWd in white-feathered quails. It is thought that carrying out more detailed and post-incubation studies will be beneficial for both academic and sectoral development.

Keywords:

quail, plumage colour, hatching egg quality, correlation, regression,

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