The Grey Evaluation And Study On The Behavior Engineering Of The Weaned Piglets

Guan shut ing(Mechanic design and theory)Directed by Prof. WuenbatuThe times to combine the behavior study of domestic animal with swine production has come, and it's tendency is becoming more and more obvious with the vigorous development of the swine production.. The raising equipment is the essentially machanical equipment in swine production, and it is one of the environmental factors which have effect on the development of swine production.The study aimed at the tipical behavior and critical time of raising weaned piglets. Using the single-chip computer to control the multi-spot thermometer, we have realized the continuous ineasurment which is the temprature of 18 spots inside the keeping warm equipment. In the process of the study , we analysed the temprature distribution pattern inside the keeping warm equipment and combined it with the behavior investigation of piglets, then we applied the grey system theory to analyse the effect on moving behavior of system (piglets' behavior) which caused by the main factors of system(temprature and humidity). At the same time, the behavior of the piglets raised inside the conventional raising equipment was analysed and studied, it was compared with the behavior of the piglets raised inside the keeping warm equipment from overall angle. We analysed and studied the two raising methods. Furthemore, we applied 12 grey models to simulate and forecast the lying and fighting behavior of the piglets raised inside the keeping warm equipment , then made a strategic decision. The results of experiment study are finished by applying grey system theory and experiment design, the grey evaluation system of the behavior engineering was formed, the system is developed with Visual Basic 6. 0 under Wi ndows95/98.