The benefits of using B-ultrasound in sow breeding mainly include five aspects:

1. By conducting early pregnancy diagnosis, the diagnostic accuracy is high, minimizing the occurrence of empty pregnancies and reducing ineffective feeding to improve economic benefits;

2. By monitoring the B-ultrasound images of piglets of different gestational ages, it is of great significance to develop a comprehensive B-ultrasound monitoring technology and reference map for pigs, which can guide pig production practice;

3. By monitoring various uterine and ovarian diseases, as well as researching the use of ultrasound monitoring technology for postpartum uterine and ovarian function recovery in pigs, accurate judgments can be made on various uterine and ovarian diseases, providing guidance for their prevention and treatment.

4. By measuring the backfat, eye muscle thickness, and area of live pigs, the breeding and breeding work can be guided.

The experimental results indicate that veterinary B-ultrasound has broad application space in pig production, and the full monitoring of B-ultrasound is of great significance for improving pig productivity and economic benefits, especially for enhancing sow reproductive capacity, and is worthy of promotion and application.