| The dairy industry is an important part of agriculture, and it is also a symbol of the modernization of agriculture. To increase the profit of dairy cattle,we need to improve the management and the diet of dairy cattle. Part of the dairy cow nutrient requirement is used to meet the needs of their own growth, development and production, and the other part is used to meet the needs of the rumen microbial flora. So to supply the necessary nutrients to cows and avoid the waste of any kinds of nutrients, the precise formulation software is needed.To improve the health and increase the product of dairy cattle, this study has developed a new generation of dairy cows precise formula system, which was integrating the research progress on the growth, development and reproduction of dairy cows, basing on dairy cattle nutrition prediction and nutrient supply models provided by the Nutrient Requirement of Dairy Cattle in2001, combining with cows feed data source of the Chinese Feed Database,using Delphi7programming language and Access2003database management system. Delphi programming language which the system used is the world's fastest editor, and it is simple, efficient and powerful, and it applies to a variety of database structure. In addition, Delphi programming language could communicate with the Access database promptly.This system mainly includes dairy cattle diets diagnosis subsystem, dairy cattle nutrition requirement prediction subsystem and dairy cow diets optimization subsystem. The dairy cattle nutrition requirement prediction subsystem is included in the rest ones.Dairy cattle diets diagnosis subsystem could diagnose and view the formula provided by the user to meet the nutritional needs of diary cows. When it is operated, you need to input the information of dairy cattle in given condition, then you may select the material according to the formula. At last, the outcome could be output. Dairy cows nutrition requirement prediction subsystem could calculate in certain physiological states the requirement of amino acid the mineral, and the requirement for maintenance, lactation, growth and pregnancy. Dairy cattle diet optimization subsystem is to obtain minimum cost in condition of meeting the requirement of dairy cattle. In order to achieve the goal of minimum cost formula, it used linear programming algorithm to constrain and optimize multiple parameters. Similarly, you should input the information of the dairy cattle which could be used to calculate the nutrition requirement.At last, the optimum formula is gained.The system is a visualization system, and it could be operated, understood easily and it also has a friendly interface design. Firstly, the dynamic prediction of the cattle's nutrition requirement.The system transform static prediction models provided by Dairy Cattle Nutrition Requirement into dynamic computing models, by Delphi programming language. Secondly, simplifying complex formula.The diet formulation of dairy cattle is quite complex, because it needs to meet the requirement of many nutrients and it should not waste any nutrient.This system is designed cleverly, and it meets the requirement of dairy cows. Users could get the minimum cost formula by using it with slightly manual adjustment.In addition, you can combine the system and manual regulation to improve the accuracy of the formula. |
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