Genetic parameters for milk,fat yield and age at first calving of Chinese Holsteins in Heilongjiang were evaluated using multiple-trait restricted maximum likel
The growth curves of five meat rabbit breeds are fitted in form of Gompertz model. The results are shown as follows :the goodness of fit is higher than 99.50% ;
Raw, heat treated soybean meal and diets made from soybeans extruded at varying temperature were compared to examine dietary threshold levels of the major soybe
During the desing of channel transect,the paper brings forward golden section method,which is 0. 618methods. In order to reduce the calculation volume of the na
A projection pursuit model is presented in this paper for comprehensive evaluation of benefits of small watershed control. By using the model ,small watershed c
The North-East China is nation commercial grain base of China. It provides important grain supply for other areas of the country every year. The nation and mod
Different fuzzy reasoning methods were gave by choosing different fuzzy counters. This article generally introduced the basic structure of fuzzy controller,and
Seeu coating can make soybean seedling grow more strongly and reinforce the resistance of soybean plant. Sodium alginate and chitosan are high-molecular compoun