| 石粉粒度对蛋鸡生产性能、钙表观存留率及胫骨钙含量的影响 |
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| 引用本文： | 王晓霞,霍启光.石粉粒度对蛋鸡生产性能、钙表观存留率及胫骨钙含量的影响[J].北京农学院学报,1998,13(3):43-50. |
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| 作者姓名： | 王晓霞 霍启光 |
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| 作者单位： | [1]北京农学院动物科学系 [2]中国农科院饲料所 |
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| 摘 要： | 选用６１周龄种禽褐壳蛋鸡２０８只，随机分为１３个处理，分别饲喂１３种不同粒度石粉构成的试验日粮（３，４％Ｃａ），测定钙表观存留率，结果表明：不同粒度石粉对蛋鸡钙表观存留率无显著影响（Ｐ＞０．０５）．另选用５４周龄种禽褐壳蛋鸡６２４只，随机分为１３个处理，分别饲喂１３种不同粒度石粉构成的试验日粮（３．４％Ｃａ）．结果表明：①不同粒度石粉对蛋鸡产蛋量、采食量、料蛋比等生产性能均无显著影响（Ｐ＞０．０５），但不同粒度石粉对破软蛋率有极显著影响（Ｐ＜０．０１），其中以添加７５％６～８目、１２．５％１０～１２目与１２．５％５０目石粉组和７５％８～１０目、１２．５％１０～１２目与１２．５％５０目两组破软蛋率最低；而小粒度石粉组即１００％５０目，２５％１０～１２目与７５％５０目两组破软蛋率最高，②不同粒度石粉对蛋鸡胫骨灰分及钙含量有极显著影响（Ｐ＜０．０１），其中以７５％６～８目、１２．５％１０～１２目与１２．５％５０目组和７５％８～１０目、１２．５％１０～１２目与１２．５％５０目石粉两组胫骨灰分及胫骨钙含量表现出显著优势（Ｐ＜０．０１），而１００％５０目及５０％１０～１２目与５０％５０目两组，胫骨灰分及钙含量最低。
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| 关 键 词： | 蛋鸡 石粉 生产性能 钙表现存留率 胫骨灰分及钙含量 |
Effect of Various Particle Size of Limestone onProduction Performance and Apparent CalciumReserved Ratio and Calcium Content of Tibia Ash |
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| Wang Xiaoxia,et al.Effect of Various Particle Size of Limestone onProduction Performance and Apparent CalciumReserved Ratio and Calcium Content of Tibia Ash[J].Journal of Beijing Agricultural College,1998,13(3):43-50. |
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| Authors: | Wang Xiaoxia |
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| Abstract: | wk-old brown egg layers were fed 13 kinds of various particle size of lime stone. The results indicated the diet had no effect on apparent calcium reserved ratio (p>0.05). 624 54-wk-old brown layers were fed 13 kinds of various particle size of limestone. The results in- dicated the diet had no effect on egg production and feed consumption (p>0.05). The diet had effect on broken and soft egg ratio and tibia ash and calcium content of tibia ash. |
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| Keywords: | Brown egg layers limestone apparent calcium reserved ratio production perfor mence tibia ash calcium content of tibia ash |
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