The effect of dietary supplementation with locally prepared probiotic and comertial product ( Biotronic SE ) on productive performance of laying hens
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2008, Volume 6, Issue 1, Pages 174-182
AbstractThis experiment was conducted in Therthar poultry fields of the animal's product Theraar company consist two periods. The first period from one day old up to 20 weeks of age. 315 chicks were used in an experiment included 7 treatments. (3 replicat/ treatment. Each repl. Consist of 15 chicks). The second period of experiment started at 21 weeks up to 40 weeks of age. 189 laying hens of the first peroid were used in an experiment contained 7 treatments (3 replicat/ treatment. Each repl. Consist of 9 hens). Two periods included, the first treatment considered as control (T1) without any additive, in the 2nd treatment (T2) supplemented with 3kg local probiotic / ton feed , the 3rd treatment (T3) supplemented with 5kg local probiotic / ton feed, 4th treatment (T4) supplemented with 7kg local probiotic/ ton feed, the 5th treatment (T5) supplemented with 1kg Biotronic SE/ ton feed, the 6th treatment (T6) supplemented with 2kg Biotronic SE / ton feed, the 7th treatment (T7) supplemented with 3kg Biotronic SE/ ton feed. The results of the first stage showed that using 3, 5 and 7 kg of local probiotic/ ton feed caused significant reduction (P < 0.01) in feed intake as compared with Biotronic SE treatment and control treatment. Significant improvement (P < 0.01) was obtained in feed conversion coefficient in local probiotic and Biotronic SE treatments compared with control treatment at 20 weeks of age. The results of second stage showed Significant improvement (P < 0.01) for treatments with added local probiotic in egg production rate (HD%),egg numbers for hen, feed conversion coefficient, accumulative egg mass and meat and blood spots. and significant reduction (P < 0.01) in accumulative feed intake as compared with control treatment. The treatment with added 2 kg Biotronic SE / ton feed improved significantly (P < 0.01) as compared with control treatment in egg production rate (HD%), egg numbers for hen, feed conversion coefficient, accumulative egg mass and meat and blood spots. But treatments of added local probiotic improved significantly over Biotronic SE treatments in most productive traits except accumlative feed intake during the accumulative period (140 days).
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