| 高钙日粮对蛋鸡生产性能及出壳雏体内锌含量的影响 |
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| 引用本文： | 邓俊良,王哲,李毓义,朱连勤.高钙日粮对蛋鸡生产性能及出壳雏体内锌含量的影响[J].中国兽医学报,1991(2). |
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| 作者姓名： | 邓俊良 王哲 李毓义 朱连勤 |
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| 作者单位： | 兽医大学内科教研室
(邓俊良，王哲，李毓义)，兽医大学内科教研室(朱连勤) |
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| 摘 要： | 生长期日粮钙>3.11%,可使蛋鸡性成熟期明显延缓,开产日龄推迟;其蛋锌及子代出壳雏血锌和多数组织锌含量明显降低,但胚胎及出壳雏鸡未见畸变.出壳雏血锌含量能反映体内锌状态,可作为其评价指标.产蛋期高钙(6.11%)或低钙(0.83%)日粮均可使产蛋性能及孵化率降低.
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| 关 键 词： | 蛋用鸡 高钙日粮 锌缺乏 生产性能 出壳雏鸡 |
Effects of High-level Calcium Ration on Production Performance in Layers and Zinc Concentration in Body of Their Newly-hatched Chickens |
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| Deng Junliang et al.Effects of High-level Calcium Ration on Production Performance in Layers and Zinc Concentration in Body of Their Newly-hatched Chickens[J].Chinese Journal of Veterinary Science,1991(2). |
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| Authors: | Deng Junliang |
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| Abstract: | When the experimental hens were fed on ration containing 3.11% of calcium or more during the growth period, their sexual maturity and the age when they started laying were delayed. The zinc concentration in egg, blood and most tissues in newly -hatched chickens decreased, but no gross malfornation was observed in embyos and newly-hatched chickens . It was considered that the plasma zinc content in the chickens could be used as an indicator of the zinc values in body . Egg ?producing performace and hatchability of fertile eggs were decreased in the hens fed on high (6.11% ) or low (0.83% ) calcium ration during the laying period . |
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| Keywords: | layer chicken high calcium ration zinc deficiency production performance newly-hatched chicken |
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