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Animal B ultrasound pregnancy monitoring and disease detection method
Image observation: when you see the typical pregnant sac dark area can be confirmed early pregnancy positive. Skilled operation in a few seconds to complete the detection of a sow. But early negative judgments should be cautious, because in a small number of pregnancy or operation is not difficult to find skilled gestational sac. No gestational sac is not equal to no pregnancy, so there will be undetected. In early pregnancy should be judged negative on both sides of a large area and a few days after careful exploration, repeatedly re examination. Ovulation monitoring is more complex, because pig ovaries are smaller, embedded in the depths, tegument connective tissue cysts, is not easy to find, to accumulate experience, small, embedded in the depths, tegument connective tissue cysts, is not easy to find, to accumulate experience, trial and error, monitoring during pregnancy also need to carefully detected fetal and fetal heart beat can identify dead, live births; gravid number estimation more bilateral uterine comprehensive exploration or estimation number are not allowed, the number of gravid detection time in breeding
28 - 35 days the most suitable at the same time observed matrix and gestational sac is not great, in a vision considerable the panorama, increased with the increase of gestational age and carcass, a view can be observed part of the embryo sac, and estimation error will increase.
2016.3.21
