体质指数较高的妇女增重目标相对较低，对于严重超重的妇女仅建议增加15磅。
Women with a higher BMI have a lower target —— 15 pounds only for the most obese women.
体制指数较低的妇女建议增重更多，达到了40磅。
Women with a lower BMI should gain more weight during pregnancy — up to 40 pounds.
当腹泻指数高到77时，日增重和饲料利用率下降。
Weight gain and feed conversion rate decreased when DI rose to 77 score.
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