In recent years, the market price of pork has been much higher than in previous years, which has invisibly driven the development of pig farms. Most pig farmers, in order to increase their income, have started using pig ultrasound to detect symptoms such as pregnancy, empty pregnancy, stillbirth, and uterine diseases (inflammation, ovarian cysts) in sows, greatly reducing the time of ineffective feeding and minimizing economic losses.

There are two to three thousand, five to six thousand, or even tens of thousands of animal B-ultrasound machines available on the market for testing pregnancy in sows. What is the difference between them?

Two to three thousand B-ultrasound machines are usually equipped with a mechanical probe, which is composed of a crystal and requires continuous rotation. The mechanical probe needs to be injected with oil once a year because rotation consumes oil. In addition, over time, the oil will evaporate and decrease, and bubbles will appear in the probe, affecting the detection effect. Oil needs to be injected at regular intervals. The oil in the mechanical probe will solidify when the temperature is low in winter, and it needs to be preheated for a period of time before it can be used normally

The five to six thousand machines are equipped with electronic probes, which receive ultrasonic signals from multiple array crystals (each manufacturer's array crystals are somewhat different). Therefore, the service life of electronic probes is relatively longer than that of mechanical probes, because mechanical probes generate ultrasonic waves from motor vibration and have relatively faster losses.

Boxianglai pigs use B-ultrasound to detect pregnancy within 19-21 days of the first estrus period. If there are empty pregnancies, they can be re bred in a timely manner, greatly reducing the time for ineffective feeding.

Estimating the number of embryos around 30 days after mating and early estimation of the number of embryos is beneficial for adjusting the nutritional formula and feeding amount in the diet of pregnant sows. When there are a large number of embryos and the nutrition and diet cannot keep up, it is easy to cause miscarriage or weak pregnancy; When the number of embryos is small and there is an excess of nutrients and diet, it is easy to cause excessive individual development of embryos, leading to difficult delivery.

After 65 days of mating, the presence of stillbirths can be detected. As a breeder, the biggest fear is the occurrence of stillbirths. Early detection of stillbirths can avoid significant economic losses. If stillbirth occurs, relevant measures can be taken according to the situation.