OF CARCASS PARTS IN VARIOUS AGES OF JAPANESE QUAIL IN IRAQ.

Abstract

ABSTRACTThis study was conducted in Animal Resources Dept. – College ofAgriculture – University of Diyala during the period 1 Feb. to 8 April 2013 ,aimed to determine dress percentage , some relative weight of carcass parts(include breast , thigh and back ) , some vital organs( heart , liver ) at variousages in Japanese quail in Iraq. The study use 100 one day old chicks , the studyslaughtered random sample of them consist of 70 birds , as 20 , 20 , 15 , 15birds in 4 , 6 , 8 , 10 week of age respectively , and the measurements taken ineach age and the correlation coefficients were calculated among the variousmeasurements .The results indicated that, the age has highly significant effect in bodyweight , carcass weight , intestine length , also there was significant effect ofage in thigh weight .The sex has significant effect in body weight , dress percentage ,intestine length , liver weight , back weight , there were highly significant effectof the interaction between age and sex in body weight and carcass weight ,while there was significant effect of this interaction in relative weight of liver.There were highly significant correlation coefficients among allmeasurements included in the study.