Friends of pig farms know that sows are the driving force of a farm, and the number of healthy piglets provided by each pig per year is an important indicator of sow breeding
1. The sow has no sexual maturity, or is underdeveloped, deformed, or immune reproductive disorder.
2. The nutrients required by the sow are insufficient, and there is a lack of energy, protein, vitamins or trace elements.
3. If the sow is in an unhealthy state, if there is too much toxin accumulation in the body, uterine inflammation, reproductive tract diseases and infectious diseases, etc., if there is a disease, malnutrition or underweight and other poor physical conditions, it will also affect the success of breeding.
4. Improper sow breeding, no correct investigation, or improper time or place of breeding, usually in the estrus period.
Breeding is carried out on one or two days, and if the estrus period has not arrived, the breeding is carried out.
5. The breeding environment is not suitable, such as poor sanitary conditions, too high or too low temperature, etc., which may affect the estrus and breeding success rate of sows.
6. The quality of the first is not up to standard, and it may also be the reason why the sow is not mated, and it is necessary to choose healthy, excellent breeds, and high-quality boars as breeding objects, and problems such as low sperm count and insufficient vitality will affect the success rate of breeding.
The following issues should be paid attention to when breeding sows:
The mating time should be better more than 2 hours after feeding, the hot weather in summer should be carried out in the morning and before 18 o'clock in the afternoon, and the mating should be done indoors in rainy or snowy weather.
The breeding site should be kept away from other boars, and the ground should be level, but not smooth, so as not to fall and injure the boars.
Keep the environment as quiet as possible during breeding, and do not shout or whip boars and sows.
After mating, gently press the middle waist of the sow with your hand to prevent ** reflux from causing emptiness or estrus. At the same time, it is also necessary to pay attention to the reproductive status of sows and take timely measures to improve the reproductive success rate.