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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (11): 15-19.doi: 10.11924/j.issn.1000-6850.2011-3803

所属专题： 生物技术； 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

氨基酸模型与粗蛋白水平对22~72周龄海兰褐蛋鸡生产性能和血液生化指标的影响研究

杨慧 林伯全 张儒德   

  • 收稿日期:2011-12-15 修回日期:2012-02-03 出版日期:2012-04-15 发布日期:2012-04-15
  • 基金资助:

    福建省泉州市科技局重大项目专项资助

Effects of Amino Acid Model and Crude Protein Levels on Performance and Blood Biochemical Indexof 22 to 72-weeks-old Hy-Line Brown Layers

  • Received:2011-12-15 Revised:2012-02-03 Online:2012-04-15 Published:2012-04-15

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摘要：

为了筛选出适合福建规模化海兰蛋鸡生产的最优氨基酸模型以及最佳低蛋白水平，以为环境友好型日粮的研发提供理论依据。试验选用21周龄体重相近、健康的华裕海兰褐蛋鸡1620只，研究不同氨基酸模型与粗蛋白水平对22~72周龄蛋鸡的生产性能、血液生化指标的影响。采用2×3因子设计，分为6个处理组，每个处理3个重复，氨基酸模型为NRC和本品种，粗蛋白水平为17.00%、16.25%、15.50%，试验期50周。结果表明：两种氨基酸模型以及氨基酸模型和粗蛋白质水平的互作对测的所有指标影响差异均不显著(P>0.05)；不同的粗蛋白水平对蛋鸡的产蛋率、平均蛋重和料蛋比有显著影响(P<0.05)，对采食量影响差异不显著(P>0.05)；粗蛋白质水平对蛋鸡血液中尿酸、尿素氮、碱性磷酸酶、总蛋白均无显著影响(P>0.05)。综合各项指标，在两种氨基酸模型中均以采用16.5%的粗蛋白水平为最佳。

关键词: 产量, 产量

Abstract:

As the environment friendly diet provide theoretical basis, this study intends to screen Fujian scale Hailan laying hen production required for the best optimal amino acid model and the best low protein level. An experiment was conducted using a total of 1620 21-weeks-old Hy-line brown layers of similar weight and healthy to investigate the effects of different amino acid model and level of protein on the production performance, blood biochemical index and nitrogen, phosphorus utilization and excretion during 22~72 weeks of age. Experiment was treated by a 2×3 factorial design with 6 dietary treatments (3 replicates of 90 birds per treatment) for 50 weeks, amino acid model (NRC and the varieties) and levels of crude protein (17%, 16.25%, 15.5%). The results from this study indicated that two amino acid model and amino acid model and crude protein levels of interaction between observations of all indexes were not significant differences (P>0.05); The different crude protein levels on egg laying rate, average egg weight and feed-egg ratio had significant effect (P<0.05), on feed intake had not significant difference (P>0.05), Crude protein levels on UA, UN, ALP, TP had no significant influence (P>0.05). Comprehensive indexes two amino acids model were by 16.5% crude protein level for the best.