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An experiment was carried out to study the performance and carcass characters of four commercial broiler breeds Arbor Acer, Cobb, Hubbard and Ross at department of Animal production , College of Agricultural Studies, Sudan University of Science and Technology, in Poultry Farm during the period from5 December2015 and ending on 9January2016 (35days). which the ambient temperature ranged between 16ºC to 30ºC . Was begin a hundred and forty chick, one day old unsexed broiler chicks (35 for each strain, Arber Acer, Cobb500, Hubbard15 and Ross308 strain), were randomly assigned in Complete randomized design. with five replicates (7 chicks per each).. fed adlibitum on balanced ration and available water. Study two comparison deferent between breeds and its standard and between breeds. Feed intake, body weight and feed conversion ratio were recorded on weekly basis throughout the entire duration of experiment, was calculated per bird.
Five chicks from each group were slaughtered to calculate carcass characteristics, and sensory evolution the data analyzed by Statistix10 trial program from which the one-way ANOVA.
The results showed that there was significantly different (p<0.05) between Ross308 and Hubbardf15 breeds in the average final body weight but it was not significantly different (p>0.05) between Arbor Acer and Cobb500 and Hubbardf15, and between Ross308 and Cobb500 and Arbor Acer. And was showed significant differences (p<0.05) between Ross308 and Hubbardf15and Cobb500breeds in average feed intake during the experiment 5th weeks while there were not significant differences (p>0.05)
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between Arbor Acer and Cobb500 and Hubbardf15, and between Ross308 and Arbor Acer.
While showed significant differences (p<0.05) between Cobb and another breeds in the average the feed conversion rations during the experiment 5th weeks for the Arbor Acer, Cobb, Hubbard and Ross breeds
A high significantly differences (p<0.05) in Mortality rate between all breeds Arbor Acer, Cobb, Hubbard and Ross breeds
A no significant differences (p>0.05) in dressing percentage between breeds Arbor Acer, Cobb, Hubbard and Ross breeds
There were no significant differences (p>0.05) in percentage of liver, heart, gizzard and abdominal fat between breeds Arbor Acer, Cobb, Hubbard and Ross. but there were significantly differences (p<0.05) in percentage of neck between breeds .
There were no significant differences (p>0.05) in percentage of commercial cuts, thigh and drumstick between breeds Arbor Acer, Cobb, Hubbard and Ross. but there were significant differences (p<0.05) in percentage of Breast between breeds Arbor Acer, Cobb, Hubbard and Ross . Also there were not significant differences (p>0.05) in meat and bone percentage of commercial cuts thigh and drumstick between breeds Arbor Acer, Cobb, Hubbard and Ross. but significant differences (p<0.05) were showed in meat and bone percentage of Breast between breeds Arbor Acer, Cobb, Hubbard and Ross.
The Sensory evaluation of meat were not significantly differ in flavor between all breed Arbor Acer, Cobb, Hubbard and Ross, but were significant differences (p<0.05) between breeds in color, tenderness and juiciness was reported . |
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