搜索结果: 1-2 共查到“家畜育种学 measurement”相关记录2条 . 查询时间(0.062 秒)
Predicting Parturition Time through Ultrasonic Measurement of Posture Changing Rate in Crated Landrace Sows
Sows Parturition Ultrasound Postures Basic Parturition Threshold Value (BPTV)
2016/4/25
This study presents an automatic system to predict parturition time in the crated sows. The system relies on ultrasonic transducers mounted from above along the length of the crate. Using a 40 kHz tim...
RELATIONSHIPS BETWEEN BODY MEASUREMENT OF DAIRY CALVES AT SIX MONTH OF AGES AND AGE AT FIRST CALVING AND MILK PRODUCTION
cattle milk production body measurement
2010/11/30
In this research, the relationships of between body measurements such as heart girth, body length, height at withers and chest depth at six month of ages of calves and their age at first calving and t...