Comparison of growth performance, feed conversion and carcass qualities of commercial crossbred broilers in Iran
2009
Mansour Bahmani, M., Msc Graduated of Tehran University | Moravej, H., Scientific Members of Tehran University | Zaghari, M., Scientific Members of Tehran University | Shivazad, M., Scientific Members of Tehran University
This study were carried out to compare the performance of commercial crossbred broilers. Four hundred chikens were allocated in a completely randomized design with 4 replicates and 20 birds (10 male and 10 female birds) per replicate from one day old to 45 days of age. Chickens in each pen were recorded at end of periods (starter, grower and finisher). Feed and water were supplied for ad libitum consumption. All chicks were fed a corn, soybean meal. When the birds reached 45 days of age, a representative sample was randomly selected 1 male and 1 female birds from each of the 20 pen and they were slaughtered for analysis of carcass, parts and organs. The performance of birds including body weight, feed intake, feed efficiency, carcass traits and production efficiency ratio were measured during the production period in order to compare the hybrids. No significant differences were observed in the live weight 28 and 45 days, percentage carcass yields, percentage breast, thigh and fat abdominal and also feed intake among crosses in this trial (P0.05). The feed conversion and the production efficiency ratio were significant among five strains (P0.05). The most and the less feed conversion belong to respectively Arian and lohman. Also the most and the less the production efficiency ratio belonged to respectively Lohman and Arian. The most and the less charge of production for one kg live weight belong to respectively Arian and lohman
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