| 日粮不同总磷水平及添加植酸酶对蛋鸡生产性能的影响 |
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| 引用本文： | 宋宇轩,仇志林,张翔,宋永宝,姚军虎. 日粮不同总磷水平及添加植酸酶对蛋鸡生产性能的影响[J]. 家畜生态, 2008, 0(5): 52-57 |
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| 作者姓名： | 宋宇轩 仇志林 张翔 宋永宝 姚军虎 |
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| 作者单位： | 西北农林科技大学动物科技学院;咸阳市渭城区动物疫病预防控制中心; |
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| 摘 要： | 以360羽72周龄伊莎父母代蛋种鸡为试验动物,随机分为五个组,研究饲喂含不同总磷水平的日粮（分别为0.35%,0.40%,0.45%,0.50%和0.55%五个水平）及添加植酸酶（500u/kg）对蛋鸡生产性能以及钙磷表观代谢率的影响。对试验期蛋鸡产蛋率、平均蛋重、耗料量、料蛋比、蛋壳厚度、蛋型指数和破蛋率的统计结果表明：总磷水平在0.40%左右时,蛋鸡的产蛋率最高,且差异显著（P〈0.05）,日粮不同总磷水平对蛋鸡其他它生产指标的影响差异不显著（P〉0.05）。对试鸡钙磷表观代谢率的计算表明：低磷日粮中的磷的表观代谢率较高,而钙的表观代谢率较低,高磷日粮中钙磷代谢则相反。结论：日粮总磷在加入植酸酶（500u/kg）的情况下0.40%水平即能使蛋鸡发挥比较好的生产性能,且不会出现缺乏症状。若综合产蛋率、耗料量、料蛋比三个因素,蛋鸡对总磷的需求水平为0.40%,若考虑平均蛋重、破蛋率这两个因素,则蛋鸡对总磷的需求水平为0.55%。
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| 关 键 词： | 总磷 植酸酶 产蛋鸡 生产性能 |
Effect of Different Levels of Total Phosphorus And add Phytase in the Ration on the Laying Performance of Hens |
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| SONG Yu-xuan,QIU zhi-Lin,ZHANG Xiang,SONG Yong-bao,YAO Jun-hu. Effect of Different Levels of Total Phosphorus And add Phytase in the Ration on the Laying Performance of Hens[J]. Ecology of Domestic Animal, 2008, 0(5): 52-57 |
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| Authors: | SONG Yu-xuan QIU zhi-Lin ZHANG Xiang SONG Yong-bao YAO Jun-hu |
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| Affiliation: | SONG Yu-xuan1,QIU zhi-Lin2,ZHANG Xiang1,SONG Yong-bao1,YAO Jun-hu1(1.College of Animal S &T,Northwest A&F University,Yangling Shaanxi 712100,China,2.Animal disease prevention , control center of Weicheng District of Xianyang cityShaanxi Xiangyang 712100) |
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| Abstract: | 360 72-week-old Isa layers were randomly allocated to 5 groups with 3 replicates of 24 chicks each replicate.The corn-soybean meal basal diets contained total phosphorus of 0.35%,0.40% 0.45% 0.50% And 0.55%,were added 500u/kg phytase respectively.Results showed that total phosphorus levels at 0.40 % level can improve laying rate significantly(P<0.05).Different total phosphorus levels don't influence the other performance parameters(P>0.05).The apparent matablic trial of calcium and phosphorus of chicken sho... |
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| Keywords: | Total phosphorus phytase layer Performance |
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