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Impact of phase feeding on growth and economic efficiency of broilers as per NRC feeding regime

SHASHI PAL AND RANJIT SINGH
Deptt. of Livestock Production & Management
COVS, P.A.U., Ludhiana

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The experiment was conducted on 120, day-old broilers chicks to evaluate the efficacy of two phase feeding treatments as per NRC feeding regime. The day-old broiler chicks were fed on a standard starter ration of NRC (1994) upto three weeks of age and thereafter equally divided into three treatments viz., T N (Control), fed standard NRC (1994) ration containing 20% and 18% protein respectively during growing (4-6 wk) and finishing phase (7-8 wks); T PF1 (phase feeding treatment), in which protein percent of ration was lowered by one percent each week during growing and finisher phase. Thus in T PF1 treatment, 20, 19, 18, 18 and 17 percent protein rations were fed during 4 th, 5 th, 6 th, 7 th and 8 th weeks of age respectively. In T PF2, another phase feeding treatment, the protein percent of ration was lowered by one percent each week continuously from 4 th week onward to 8 th week of age, i.e. 20, 19, 18, 17 and 16 percent protein rations were fed during 4 th, 5 th, 6 th, 7 th and 8 th week of age, respectively. The weekly data were recorded on body weight, weight gain, feed intake, FCR, PER and feed cost. While carcass parameters were recorded at 6 th & 8 th week of age.

The results indicated no significant differences in body weight, feed intake and FCR among T N, T PF1 and T PF2. No differences were observed in carcass, breast, wing or leg yield but abdominal fat was significantly more in T PF1 and T PF2 as compared to T N. Economic analysis indicated that cost of feed consumed per bird was Rs. 58.92, 57.23 and 57.78 in T N, T PF1 and T PF2 treatments, respectively. The returns over feed cost were Rs. 31.49, 32.69 and 33.00, respectively in T N, T PF1 and T PF2. The cost benefit-analysis revealed that phase feeding treatments T PF2 and T PF1 had 4.79% (Rs. 1.51) and 3.84% (Rs. 1.20) higher return over feed cost than control (T N). It was concluded that phase feeding may result in lowering the feed cost without sacrificing growth performance and thus better returns.

Source : IPSACON-2005
 
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