What causes sows to have fewer litters? What is the reason for sows to have fewer litters?

What are the reasons for sows to have fewer litters? What are the reasons for sows to have fewer litters
.1. Breed reasons: Some breeds have low reproductive capacity, resulting in a small number of litters. Due to breed reasons, the number of litters increases. It is very difficult. In the process of maternal line selection for commercial pig production, we cannot only focus on the body size and lean meat rate of the pig breed, but ignore the reproductive ability.

. 2. Reasons for age: The age and parity of pigs affect the number of litters, and also affect the number of live litters. Pregnant < < The reproductive performance of sows with fetuses is low, the number of ovulations is low, and the number of litters is small < < The reproductive performance of fetuses is the best, the number of litters and the number of live piglets is the highest < < The reproductive performance of sows after conception has declined, and the number of litters has been reduced The number of piglets and the number of piglets born alive decreased. Moreover, due to the influence of physical strength, the farrowing process is prone to fatigue and takes too long, resulting in a high proportion of stillbirths. During production, assisted delivery of low- and high-parity pigs should be strengthened and the interval between farrowing should be reduced.

. 3. < .< Reason for feed: There is no nutritious and full-price compound feed for sows. Some producers believe that sows do not use or use less additives to avoid excessive obesity in sows. This idea is incorrect and must be corrected. Some feed companies also believe that sow feed is not important. They do not carefully prepare the formula, do not pay the full price, and cut corners, causing pig farmers to misunderstand whether the effect of adding additives is not obvious.

.4. Seasonal changes: Sows bred in < -< months have more litters than those bred outside < -< months. There are less < .3< piglets outside of < -< months, so the average annual litter size will decrease slightly due to seasonal factors. Therefore, pig farms in the northeastern region mostly learn from foreign and southern pig farms. When building pig farms, they try their best to make the microclimate environment in the house meet the needs of the pigs. They focus on ensuring the appropriate temperature while taking into account various environments such as ventilation and relative humidity. factor.

. 5. Management issues: Breeding too early, not reaching physical maturity, resulting in a reduction in the number of litters. The gilts should be bred at < < months and above. The weight is too high when bred. Too much fat will reduce the number of litters. Sows that are too thin after weaning, have abortions, and return to estrus that are too fat all affect the number of ovulations in sows, thereby affecting the number of litters.

. 6. Other reasons: Unreasonable vaccination time, epidemics and other factors also affect the number of sows' litters.

Based on the above reasons, if you want to solve the problem of sows having fewer litters, you can refer to adding a certain amount of sow life elements to ferment the traditional Chinese medicine with optimized enzyme-producing bacteria, and use microorganisms to A new functional high-tech product obtained through the interaction with traditional Chinese medicine, which regulates the hormone balance in the sow's body and improves the production performance of the sow. The traditional Chinese medicine ingredients and vitamins promote the quantity and quality of ovulation in the sow, thereby achieving the effect of procreation and eugenics. If you still have questions about this, you can call the national hotline online: Dong Qian < < < <.