求翻译：为提高蛋鸡的产蛋率，增加养鸡户的效益，一般在蛋鸡的产蛋高峰后期（45 周龄以后）淘汰低产蛋鸡，以达到降低养殖成本，提高效益的目的。是什么意思？

In order to improve the rate of laying hens, increase the effectiveness of the poultry farmers, generally out of low-yielding hens in laying hens peak late (after 45 weeks of age), in order to achieve to reduce farming costs, improving efficiency purposes.

In order to enhance the egg chicken eggs, the increase rate of poultry farms, chicken eggs in the egg during peak periods (45 weeks later after aging out low shipments) to reduce costs, increase efficiency aquaculture.

In order to enhance the layer to produce the egg rate, the increase raises chickens the household the benefit, will generally produce the egg peak in the layer later period (45 weeks ages later) to eliminate produces the layer lowly, achieved will reduce the cultivation cost, will enhance the benefi

To increase the rate of egg laying hens, increasing the benefits of chicken, usually in the late peak egg production of laying hens (after 45 weeks of age) out of low-laying hens, to reduce culture cost for efficiency purposes.

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