Effect of fasting period before slaughtering on the carcass traits for the Iraqi lambs
journal of kerbala university,
2007, Volume 3, Issue 4, Pages 99-108
AbstractThis study was conducted in the animal field that belongs to Animal Resource Dept. in the College of Agriculture and Forestry,Mosul University. Sixteen local males lambs with age about 7-8 months and initial weight average 38.200 kg , were divided randomly into four groups and then distributed randomly to four treatments. The treatments consisted of different fasting periods which were 0 ( control), 12 , 24 and 36 hours pre-slaughtering lambs. During this study the animals were fed about 1 kg of concentrate diet per day for each animal , Moreover these animals were go out to graze for pastures in every day through this experiment as a flushing for one month before slaughtering operations .The statistical analysis of this results indicated that there were a significant effect (P≤ 0.05) of fasting period before slaughtering on many traits which were amount of losing live weight between control treatment and other treatments , rib-eye muscle area , major cuts and alia (tail) percentages , Offal’s carcass weights and it percentages such as weights of liver, kidney,spleen,full content of rumen, empty content of rumen, and legs. Percentages of full content of rumen, empty content of rumen, and legs on the other hand the statistical analysis indicated no significant differences in animal performance traits such as the live weight averages before and after slaughtering, empty body weighty averages , hot and cool carcass, dressing percentage calculated by two methods ( live weight and empty body weight) ,fat subcutaneous, cuts of carcass weights, some weights of the offal’s carcass such as heart, testes, lungs, skin, head and other of percentages of the offal’s carcass as like percent of testes weight, percent of lungs weight, percent of skin weight and percent of head weight respectively.
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