MeSH主题词 膳食调查(Diet Surveys) 营养和代谢性疾病(Nutritional and Metabolic Diseases) Logistic模型(Logistic Models) 膳食(Diet) 蛋白(Egg White) 城市(Cities) 数据收集(Data Collection) 人(Persons) ..
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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.
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.
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