比较准确地解决了奶牛日粮配比中存在的问题，降低了奶牛营养代谢性疾病的发生率，并取得比较好的社会效益和经济效益。
The problem of ratio in dairy cattle diets has been solved, the incidence of nutritional deficiency diseases has been decreased, access to a better social and economic benefits.
严重的营养一词的风险是用来描述一种疾病或手术或好或坏的结果的机会，根据实际的或潜在的营养和代谢状况。
The term severe nutritional risk is used to describe the chances of a better or worse outcome from disease or surgery according to actual or potential nutritional and metabolic status.
在动物生产中，动物营养代谢性疾病是继传染病、寄生虫病和中毒病外的最大群发病和多发病。
In addition to infectious diseases, parasitic diseases and poisoning diseases, nutritional deficiency diseases in animal production is the largest group-occurring and frequent disease.
锌主要通过影响多种酶来实现其对畜禽皮肤、生殖性能、腿部关节的多种作用，尤其是对鸡、猪和奶牛的作用较大。锌的用量过多过少，都会引起动物相应的营养代谢性疾病，甚至死亡。
By way of affection to enzymes zinc realize its multifunction to the derma, reproductive abilities and arthroses in domestic animals and poultry, especially to chicken, swine and cow.
锌主要通过影响多种酶来实现其对畜禽皮肤、生殖性能、腿部关节的多种作用，尤其是对鸡、猪和奶牛的作用较大。锌的用量过多过少，都会引起动物相应的营养代谢性疾病，甚至死亡。
By way of affection to enzymes zinc realize its multifunction to the derma, reproductive abilities and arthroses in domestic animals and poultry, especially to chicken, swine and cow.
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