92-103
STUDY OF DRESS PERCENTAGE AND RELATIVE WEIGHTS OF CARCASS PARTS IN VARIOUS AGES OF JAPANESE QUAIL IN IRAQ.
Authors: K. H. Hassan Ahmad A. Ahmad Thana A. Dawood Noor K. Fadil
Number of views: 666
ABSTRACT
This study was conducted in Animal Resources Dept. – College of
Agriculture – 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 various
ages in Japanese quail in Iraq. The study use 100 one day old chicks , the study
slaughtered random sample of them consist of 70 birds , as 20 , 20 , 15 , 15
birds in 4 , 6 , 8 , 10 week of age respectively , and the measurements taken in
each age and the correlation coefficients were calculated among the various
measurements .
The results indicated that, the age has highly significant effect in body
weight , carcass weight , intestine length , also there was significant effect of
age 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 all
measurements included in the study.
Key words: Japanese quail , dress percentage , carcass parts , vital organs .
Diyala Agricultural Sciences Journal , 5(2):92-103. 2013