標題: Nutrition and Egg Weight營養與蛋重 [打印本頁] 作者: monica 時間: 2013-8-6 17:20 標題: Nutrition and Egg Weight營養與蛋重 Nutrition and Egg Weight營養與蛋重
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.
開產時的蛋雞體重影響蛋黃大小，進而影響蛋重。因此，更改后備雞飼喂和管理制度，可以增加產蛋時體重，進而提高整個產蛋期的蛋重，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.
產蛋期，日糧蛋白質或氨基酸（諸多氨基酸中，通常通過蛋氨酸來影響蛋重）、亞油酸、以及脂肪或者油，都被作為調整蛋重的手段。想通過氨基酸改變蛋重時，不建議您只調整蛋氨酸，而是建議您在調整蛋氨酸的同時也要改變其他氨基酸。日糧能量首先影響產蛋率，其次才是蛋重。所以，當您試圖改變蛋重時，建議您保證日糧能量水平不變。
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，如果您想避免蛋重過大，那么在產蛋早期就開始進行營養方面的調控非常關鍵（也就是說，在達到理想蛋重前2—3周）。一旦超過理想蛋重，想在不降低產蛋量的前提下降低蛋重-當然也不是不可能的-但是，這是非常困難的。
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
--在保證空氣質量的前提下，提高雞舍內溫度
--控制每天的飼喂次數
2. Reducing the consumption of amino acids ("balanced protein")
減少氨基酸采食量（注意：平衡的蛋白質）
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
減少脂肪或油的采食量
--可以通過使用外源飼料酶制劑達到目的，這樣還不影響日糧能量濃度
--產蛋高峰前，減少日糧脂肪或油的含量也是有益的，但前提是蛋雞能夠采食到足夠的能量
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)
減少亞油酸的攝入量(C18:2 n-3)
--與亞油酸比，似乎其他脂肪或油（不特指某個具體的脂肪酸）對蛋重的影響更大（亞油酸每天采食量應不低于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).
產蛋期，減少體重（整個產蛋周期，同時要避免體重增加超過標準）
The opposite strategies can be used to increase egg size.與上述相反的措施，可以提高蛋重。 作者: 小馬哥 時間: 2013-8-6 18:11
精煉文章，總結的有高度，小同鄉有水平，翻譯得也很簡潔。作者: 山中的漫游者 時間: 2013-8-6 20:31
很贊作者: email123 時間: 2013-8-6 22:28
翻譯的很好。
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，更改后備雞飼喂和管理制度，可以增加產蛋時體重，進而提高整個產蛋期的蛋重，反之亦然。
