近代动物营养学研究表明,动物除需要各种能量、蛋白质等营养素外,亦必需一些矿物微量元素。这些微量元素虽所需数量甚微,但往往单纯用常规饲料难于满足需要。应用微量元素添加剂加以补充,能收到显著增产效果。我省配合饲料厂现已林立于各地,生产的猪鸡添加剂种类和数量很多,并收到了较大的增产效果。但奶牛添加剂生产基本上为空白,近年虽从国外引进了保增乐等进口奶牛添加剂,也因价高,增产效果不佳而使用甚少。为此,省市科委联合下达了 Modern animal nutrition research shows that animals need a variety of energy, protein and other nutrients, but also some mineral trace elements. Although these trace elements are in small quantities, they are often difficult to meet the needs of conventional feed alone. Application of trace element additives to be supplemented, can receive a significant increase in production. Feed processing plant in our province has now everywhere, producing a large number of types and quantities of pig additives, and received a larger yield increase. However, the production of dairy additives is basically blank. Although imported dairy additives such as Baolian imported from abroad have also been introduced in recent years, they are also rarely used due to their high prices and poor yield. To this end, the provincial Science and Technology Commission jointly issued