| 摘要: |
| 旨在研究培育低蛋白质日粮中发挥高产蛋性能的日本鹌鹑新品系。试验选用6~20周龄日本鹌鹑N、B(Normal、Brown)2个品系和杂种群(BN),共进行8个世代的选育试验,各品系采用单因子试验设计,在低蛋白CP为18%日粮条件下分选育组、非选育组以及对照组(CP24%),N、B基础群中选留15种家系,以产蛋率为主选性状,以繁殖性状为辅选性状作为选育指标进行试验。结果表明:随着世代数的增加选育组和对照组的适应力均有显著上升(P<0.05),N品系的各世代遗传改进量为0.26;另外,世代间产蛋率有增高的倾向,选育组平均累积产蛋率与非选育组较显著升高(P<0.05),特别是选育组各世代遗传改良极为显著(P<0.01)。通过选育N、B新品系,能够改善产蛋性能,在BN杂种群中效果更明显。 |
| 关键词: 选育 世代数 低蛋白日粮 产蛋率 适应力 鹌鹑 |
| DOI：10.11841/j.issn.1007-4333.2009.04.088 |
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| 基金项目:日本韦斯高(ウェスコ)学术研究资金项目资助 |
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| Effect of low-protein dietbreeding on the production performance of quails |
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| Abstract: |
| This experiment was conducted to select the high production performance Japanese laying quailsusing low crude protein(CP) diet.Japanese quails from Normal,Brown breed and crossing group were used in the eight-generation(6-20 weeks) selective experiment.Single-factor experimental design was used.quails were allocated in selected and non-selected groups with 18% CP diets and control group with 24% CP diet,with laying rate as main select trait and reproduction trait as subsidiary select traits.The results show... |
| Key words: selective breeding generations low-protein diet breeding egg production adaptive capacity quail |
