The correct use of pig B-ultrasound can improve the efficiency and quality of sow breeding and create a good breeding environment for sow. When the sow is breeding, keep the surrounding environment quiet so that the pigs in the breeding can be comfortable so that the boars can fully ejaculate. Carefully observe whether the pig is in estrus and grasp the breeding opportunity of the pig, and it can also be carried out by means of pig B-ultrasound. When the sow is in heat, the external manifestation is very uneasy, the appetite is decreased, the active search for the boars, the sow's labia is red and swollen, and there is fluid flowing out. Pig mating time is usually selected in the sow ovulating at the end of the estrus, when the characteristics of the sow estrus are significant, allowing the boar to climb across the best time for mating, can also be based on the results of the pig with B ultrasound to check the follicle. Breeders should adopt flexible breeding methods and standardized breeding practices. When artificial breeding, each sow can mate with the same breeding pig 2-3 times, and the interval of each 2 times should be controlled between 8-12h; The sow that has given birth can mate with the same boar twice, the interval should be controlled between 8-24h, and can be observed with pig B-ultrasound, so that the sow can continue to exist viable sperm during ovulation, and increase the chance of fertilization of eggs released by the ovary. For commercial pig farms, double breeding should be selected, when the sow is in estrus and the two boars each mate once, the pig is observed with B-ultrasound, the interval between the two is usually controlled at about 20h, to ensure the number of sow births and the development degree of piglets.

Pig ultrasound

Breeding pigs should choose those boars with better litter performance, and high quality semen is an important condition to improve the litter rate of sows. Semen quality of breeding pigs is determined by breed characteristics and physique of breeding pigs. Therefore, in order to improve the fertility rate of sows, it is necessary to choose a breed with strong reproductive capacity, physical fitness and a strong libido, and use pig B-ultrasound to check the testes and backfat status. In addition, it is necessary to strengthen the breeding management of breeding pigs and feed sufficient and high-quality feed to meet the nutritional needs of breeding pigs. Arrange proper exercise of breeding pigs to achieve the purpose of enhancing physical fitness. It is also important to check the quality of the semen at regular intervals to ensure that the quality of the semen used is good, and to use a B-ultrasound to check the backfat status of the pig.

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