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.
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.
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