Compensatory growth in broilers subjected to different levels of feed restriction during the second week of age
1998
Dagaas, C.T. | Flores, D.N. (Philippines Univ. Los Banos, College, Laguna (Philippines). Inst. of Animal Science)
The experiment was conducted to determine the effect of different levels of feed restrictions (20 percent, 30 percent, 40 percent and 50 percent less than the normal feed intake) during the second week of age on the compensatory growth of broilers. One hundred eighty (180) male Arbor Acre broiler chicks were randomly distributed based on a completely randomized design to five treatments with six replications. Full body weight recovery was observed as early as in the 3rd week of age. Feed restriction was found to improve feed efficiency of broilers particularly at 50 percent less than normal feed intake. Dressing percentage and abdominal fat content were not affected by feed restriction and extending the refeeding period. Mortality was considered negligible during the period of the study. Income over feed and chick cost analysis showed that feed restriction of 20 percent less than normal feed intake is most profitable. Based on the condition under which this study was conducted, 20 percent less than normal feed intake is recommended. However, there is still a need to improve the method and level of restriction in order to see whether feed restriction could affect dressing percentage and abdominal fat content
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