Japon Bıldırcınlarında Karkas Ağırlığına Etki Eden Bazı Karkas Parça Ölçülerinin Path Analizi ile İncelenmesi

Abstract

Bu calismada, Japon bildircinlarinda karkas agirligi uzerinde but agirligi, gogus agirligi, kanat agirligi ve sirt agirligi olculerinin dogrudan ve dolayli etkileri path analizi ile belirlenmistir. Calismada 40 adet Japon bildircinina ( Coturnix coturnix japonica ) ait olcutler kullanilmistir. Bildircinlarin yarisi erkek yarisi disidir. Analiz sonuclarina gore bildircinlarda karkas agirligi ile incelenen karkas parca agirliklari arasindaki iliskinin pozitif ve onemli oldugu saptanmistir (P<0.05). Denemede en yuksek korelasyona, karkas agirligi ile gogus agirligi arasinda rastlanilmistir (r=0.775). Erkek bildircinlarda karkas agirligi ile karkas parca olculeri arasindaki iliski onemsiz saptanirken; disi bildircinlarda karkas agirligi ile gogus agirligi ve sirt agirligi arasindaki iliski onemli bulunmustur (P<0.01). Calismada hem erkek hem de disi bildircinlarda en yuksek korelasyona karkas agirligi ile gogus agirligi arasinda elde edilmistir (r=0.370 ve r=0.797). Karkas agirligi uzerine but agirligi, gogus agirligi, kanat agirligi ve sirt agirliginin dogrudan etkisi sirasiyla %45.423, %60.829, %30.045 ve %48.587 olarak bulunmustur. Karkas agirligi uzerine en buyuk dogrudan etkiyi gogus agirligi yapmistir. Gogus agirliginin but agirligi, kanat agirligi ve sirt agirligi uzerinden dolayli etkileri sirasiyla %17.231, %5.931 ve %15.989 olarak saptanmistir. Anahtar kelimeler: Japon bildircini, Karkas agirligi, Path analizi, Karkas parca agirliklari Examination of Some Carcass Parts Measurements Affecting on Carcass Weight via Path Analysis on Japanese quail Abstract: In this study, direct and indirect effects of the thigh weight, breast weight, wing weight and back weight measure on carcass weight were determined by means of path analysis methods in Japanese quail. Forty Japanese quail ( Coturnix coturnix Japonica ),(half male and half female).were used in the study The results show that examined relations carcass weight and all body measurements were significant (P<0.05). There was at the maximum correlation between carcass weight and breast weight (r=0.775). While the relationship between carcass weight and carcass part size was insignificant in the men quail. Whereas, the relationship between carcass weight with breast weight and back weight was significant in the female quail (P<0.01). There was also the maximum correlation between carcass weight and breast weight in both male and females (r=0.370 and r=0.797). Percentages of direct effects on carcass weight were 45.423%, 60.829%, 30.045% and 48.587% for the thigh weight, breast weight, wing weight and ridge weight, respectively. Breast weight sustained the largest direct effect on carcass weight. Indirect effects of breast weight through thigh weight, wing weight and ridge weight were 17.231%, 5.931% and 15.989%, respectively. Key Words: Japanese quail, Carcass weight, Path analysis, Carcass part weights