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首页> 外文期刊>Czech Journal of Animal Science >Calcium, magnesium and phosphorus retention in young chicks
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Calcium, magnesium and phosphorus retention in young chicks

机译：雏鸡中钙，镁和磷的保留

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摘要

Utilisation of calcium, magnesium and phosphorus was examined in broilers and laying type cockerels from Day 3 to Day 22. Differences between the individuals birds with and without deutectomy were also studied. Utilisation of Ca and Mg increased very quickly and reached its maximum at 14 days of age. In intact chicks coefficients of apparent phosphorus retention decreased (P < 0.01) during the whole experiment while in deutectomized ones they increased till the age of 13 days; thereafter, a decrease was recorded. Retention of calcium per 1 g of weight gain in chicks with and without yolk sacs increased till Day 16-17 and during the whole experimental period (P < 0.01), respectively. Content of magnesium in weight gains increased and culminated on Day 13-14. Concentration of phosphorus in weight gains in chicks with and without yolk sacs increased till Day 14 and till the end of experiment, respectively. Differences in Ca, Mg and P retention per unit of weight gain in laying type hybrids and in broiler chicks were not significant (P > 0.05).
机译：从第3天到第22天，检查了肉鸡和蛋鸡中钙，镁和磷的利用率。钙和镁的利用非常迅速地增加，并在14天龄时达到最大值。在整个实验中，完整雏鸡的表观磷保留系数降低（P <0.01），而经去骨的雏鸡直到13天龄时，其表观磷保留系数均增加（P <0.01）。此后，记录了下降。在有卵黄囊和无卵黄囊的雏鸡中，每增加1 g体重，钙的保留量分别增加至第16-17天和整个实验期间（P <0.01）。体重增加的镁含量在第13-14天增加并达到顶峰。在有卵黄囊和没有卵黄囊的雏鸡中，磷的体重增加分别增加到第14天和实验结束。产蛋型杂种和肉仔鸡每单位体重增加的钙，镁和磷保留量差异不显着（P> 0.05）。

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