| 超早期日粮对肉仔鸡生产性能和产肉性能的影响 |
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| 引用本文： | 赵红波,谢幼梅.超早期日粮对肉仔鸡生产性能和产肉性能的影响[J].西南农业学报,2008,21(5). |
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| 作者姓名： | 赵红波 谢幼梅 |
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| 作者单位： | 1. 山东省农科院畜牧兽医研究所,山东济南,250100
2. 山东农业大学动物科学院,山东泰安,271018 |
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| 基金项目： | 山东省农业科学院青年基金 |
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| 摘 要： | 选择刚出壳的AA肉仔鸡200只,随机分成2组,一组为早期饲喂组,一组为早期禁食组,每组设4个重复,每个重复25只鸡,进行饲养试验。在试验的第21、42、49日龄称重、翅静脉采血,研究早期饲喂对生产性能和血清尿素氮的影响。在21、42日龄采用收粪法分别进行两次代谢试验,测定氮沉积率。在试验结束时,进行屠宰试验,研究早期饲喂对胸肌率的影响。结果表明:①早期饲喂能显著的提高肉仔鸡各阶段的平均体重(P<0.05),0~21日龄的氮沉积率显著高于早期禁食组(P<0.05),血清尿素氮显著低于早期禁食组(P<0.05),死亡率降低6%。②早期饲喂对胸肌率和腿肌率有显著的影响,与早期禁食组相比,胸肌率提高了胸肌率提高了2.14%,腿肌率下降了0.93%。
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| 关 键 词： | 肉仔鸡 超前期日粮 生长性能 胸肌率 |
Effect of early feeding on growth performance and meat performance for broilers |
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| ZHAO Hong-bo,XIE You-mei.Effect of early feeding on growth performance and meat performance for broilers[J].Southwest China Journal of Agricultural Sciences,2008,21(5). |
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| Authors: | ZHAO Hong-bo XIE You-mei |
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| Abstract: | 200 newly chickens were randomly divided into 8 groups.Each four groups received the treatment.One was early feeding treatment,the other was early fasting treatment.At 21,42 and 49 d of age,the body weight were determined to calculate growth performance,the blood sample was obtained to analyze serum urine nitrogen and NDV antibody level.At 21 d and 42 d of age,nitrogen metabolism test were done to measure nitrogen deposit ratio.The test was over,2 chicks were slaughtered to calculate slaughter performance and immune organ.The result indicated that:(i)The average body weight of early feeding was higher than that of early fasting broilers(P<0.05),0-21 day,the nitrogen deposit ratio and serum urine nitrogen of early feeding had significant improvement(P<0.05).The mortality rate of early feeding broilers was 6 % less than that of early fasting.(ii)The ratio of breast muscle and thigh muscle of early feeding was higher than that of early fasting. |
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| Keywords: | broilers early feeding diet growth performance ratio of breast muscle |
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