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引用次数: 0

摘要

去年,在圭尔夫会议上,我第一次尝到了照明的甜头,并且喜欢上了最后一滴。我记得当时有一些关于照明对后期孵化的小鸡有什么作用的讨论。那时,我已经孵出了五只不同年龄的来角鸡小鸡,目的是为了示范孵蛋的适当或最理想的时间。因此,很容易把这些小鸡分成两组,给一组提供电灯,让另一组在没有电灯的情况下尽可能地正常生活。因此,这些小鸡被分成a和b两个栏,每个栏里有8只小鸡,分别来自5个不同的孵化阶段,但都是从同一个栏里孵出来的蛋里孵出来的。1号拍品孵化日期为3月1日,2号拍品孵化日期为3月25日……
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Illumination and Late Hatched Pullets

Last year at the Guelph meeting I had my first good taste of illumination and liked it to the last drop. At that time I remember there was some discussion regarding what illumination would do for the late hatched pullets. At that time I had hatched five different ages of leghorn pullets for the purpose of a demonstration as to the proper or most desirable time of hatching for egg production. It was therefore an easy matter to divide these pullets into two lots and provide electric lights for one and allow the other to get along as best it could without.

The pullets were therefore divided into two pens A. and B. and in each pen there were eight pullets from each of five different hatches but all hatched from eggs produced by the same pen. The hatching dates were for lot 1, March first, lot 2, March 25, . . .

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Preliminary Note on the Correlation Between Age at First Laying, and Size of First Eggs in Pullets.* Experiments in Feeding Laying Hens Experiments with Animal Protein to Laying Fowls. Remarks Regarding Poultry Diseases. Physiology of the “Stick” in the Dry Picking of Poultry
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