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首页> 外文期刊>Philippines Journal of Veterinary and Animal Sciences >Compensatory growth in broilers subjected to different levels of feed restriction during their second week of age
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Compensatory growth in broilers subjected to different levels of feed restriction during their second week of age

机译：肉仔鸡第二周受不同水平的饲料限制而出现代偿性生长

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摘要

The experiment was conducted to determine the effect of different levels of feed restrictions (at 20%, 30%, 40%, and 50% less than the normal feed intake) on the compensatory growth of broilers during their second week of age. One hundred eighty male Arbor Acre broiler chicks were randomly distributed based on a completely randomized design (CRD) to five treatments with six replications. Full body weight recovery was observed in the 3~(rd) week of age for birds at 20% less than the normal feed intake. Feed restriction improved feed efficiency of broilers even at 50% less than normal feed intake. Feed restriction and refeeding period extension did not affect dressing percentage and abdominal fat content of the birds. Mortality was considered negligible during the experimenL Income over feed and chick cost (IOFCC) analysis showed that feed restriction at 20% less than normal feed intake was most profitable-Hence, based on the condition under which this study was conducted, feed restriction at 20% less than normal feed intake is recommended. Further studies could be conducted on the effect of feed restriction on the dressing percentage and abdominal fat content of the birds. This area could be further cxpiored by improving the mcthodology and increasing levels of feed restriction beyond 50% less than the normal feed intake.
机译：进行该实验以确定不同水平的饲料限制（分别比正常饲料摄入量少20％，30％，40％和50％）对肉鸡第二周龄补偿性生长的影响。根据完全随机设计（CRD），将180只雄性Arbor Acre肉仔鸡随机分配到五种处理方法，重复六次。鸡在第3周（第3周）的体重可以恢复，比正常采食量少20％。限饲提高了肉鸡的饲料效率，即使比正常采食量少50％。限制饲喂和延长补饲期不影响家禽的换料率和腹部脂肪含量。在实验中死亡率被忽略不计收入超过饲料和雏鸡成本（IOFCC）分析显示，将饲料限制比正常饲料摄入量少20％是最有利可图的-因此，根据进行这项研究的条件，饲料限制为20建议比正常采食量少％。进食限制对鸡的穿衣率和腹部脂肪含量的影响还可以进行进一步的研究。可以通过改善方法和将饲料限制水平提高到比正常采食量少50％来进一步改善这一领域。

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