Nutrition and Egg Weight营养与蛋重

monica

                           Nutrition and Egg Weight营养与蛋重
Body weight at  point of lay influences yolk size, which, in turn, influences egg weight. Therefore, changing the pullet feeding and management program to increase body weight at point of lay can increase the egg size throughout the laying period and vice versa.
开产时的蛋鸡体重影响蛋黄大小，进而影响蛋重。因此，更改后备鸡饲喂和管理制度，可以增加产蛋时体重，进而提高整个产蛋期的蛋重，反之亦然。
During the laying period, egg weight can be influenced by changing the consumption of balanced protein or amino acids (of these, methionine has traditionally been used to affect egg weight), linoleic acid, and supplemental fat or oil. Rather than changing just methionine, it is recommended to change all the amino acids to influence egg weight. Consumption of energy will typically affect the rate of egg production before affecting egg weight, so the dietary energy content should normally not be changed in an attempt to influence egg weight.
产蛋期，日粮蛋白质或氨基酸（诸多氨基酸中，通常通过蛋氨酸来影响蛋重）、亚油酸、以及脂肪或者油，都被作为调整蛋重的手段。想通过氨基酸改变蛋重时，不建议您只调整蛋氨酸，而是建议您在调整蛋氨酸的同时也要改变其他氨基酸。日粮能量首先影响产蛋率，其次才是蛋重。所以，当您试图改变蛋重时，建议您保证日粮能量水平不变。
Note that if these nutritional strategies are used to influence egg weights to avoid excessively heavy eggs, it is important to start egg-weight control early in the production cycle (i.e., 2 to 3 g before the desired egg weight). Once the eggs are above the desired weights, it is difficult—if not impossible—to reduce egg weight without also reducing egg production.
需要注意，如果您想避免蛋重过大，那么在产蛋早期就开始进行营养方面的调控非常关键（也就是说，在达到理想蛋重前2—3周）。一旦超过理想蛋重，想在不降低产蛋量的前提下降低蛋重-当然也不是不可能的-但是，这是非常困难的。
降低（控制）蛋重的措施包括：
Strategies to decrease (or "control") egg weight include
1.        Reducing feed intake
o        this may best be done by increasing the ambient temperature in the barn without negatively affecting air quality, or
o        by controlling the number of feedings per day),
             降低采食量
             --在保证空气质量的前提下，提高鸡舍内温度
             --控制每天的饲喂次数
2.        Reducing the consumption of amino acids ("balanced protein")
减少氨基酸采食量（注意：平衡的蛋白质）
3.        Reducing the consumption of fat or oil
o        this may be done without affecting the dietary energy content through the use of exogenous feed enzymes
o        for the Hy-Line W-36 and W-36 Parent Stock, reducing the dietary fat or oil content before peak production is helpful (as long as the birds still receive sufficient energy
            减少脂肪或油的采食量
            --可以通过使用外源饲料酶制剂达到目的，这样还不影响日粮能量浓度
            --产蛋高峰前，减少日粮脂肪或油的含量也是有益的，但前提是蛋鸡能够采食到足够的能量
4.        Reducing the consumption of linoleic acid (C18:2 n-3)
o        it appears that fat or oil in general (as opposed to a specific fatty acid) has more influence on egg weight than linoleic acid (at linoleic-acid intakes above 1 g per day)
           减少亚油酸的摄入量(C18:2 n-3)
            --与亚油酸比，似乎其他脂肪或油（不特指某个具体的脂肪酸）对蛋重的影响更大（亚油酸每天采食量应不低于1克/天）
5.        Reducing the body weight at point of lay (and avoid increases in body weight above the performance standards throughout the lay cycle).
产蛋期，减少体重（整个产蛋周期，同时要避免体重增加超过标准）
The opposite strategies can be used to increase egg size.与上述相反的措施，可以提高蛋重。

小马哥

精炼文章，总结的有高度，小同乡有水平，翻译得也很简洁。

山中的漫游者

很赞

email123

翻译的很好。
Therefore, changing the pullet feeding and management program to increase body weight at point of lay can increase the egg size throughout the laying period and vice versa因此，更改后备鸡饲喂和管理制度，可以增加产蛋时体重，进而提高整个产蛋期的蛋重，反之亦然。

我觉得翻译成“因此，通过改变后备鸡饲喂和管理制度来增加产蛋时体重，可以提高整个产蛋期的蛋重，反之亦然。”更准确

宗介

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