Rafea Mohammedtaher Khulel

Comparison of broiler performance under two rearing systems (floor vs cages).

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• Rafea Khuleel

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Abstract: This study was conducted on two groups of broiler , the first consists of 4 replicates of 10 birds and the second of 10 birds as each bird is a replicate in individual cages. The first group were reared on floor during the entire period ,while the second was reared in cages during the period from 2-7 weeks of age. All birds received the same ration with 2859 Kcal/ kg ME and 22% CP as a starter ration, 2995 Kcal/kg ME and 19.19% CP as a finisher ration. The results showed that cage birds had a significantly (P≤0.01) higher body weight , total and daily weight gain at all ages , significantly(P≤0.01) higher total and daily feed and protein consumption , at 2- 4 , 0-4 weeks , feed and protein conversion ratio at 4- 7, 0- 7 weeks. Also cage birds showed a significantly better growth rate at 2- 4 , 0- 7 weeks and less dressing percentage, higher wing percentage while other carcass parts did not differ significantly. The cage birds showed better economic efficiency by 27% comparing to floor birds.

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• Animal science

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