The reasons for the lack of litter size in sows

Many rural families will raise some poultry and livestock, of which pigs are the most common, pork is also one of our main meat, so pigs are also the source of income for many families. But what is very annoying is that sows always have very few piglets. Normal sows can give birth to 8-12 piglets at a time, while some families have 3-5 piglets. What is going on? Sow productivity is low, resulting in the development of pig industry, the following to see the pro-agricultural network sow litter less reasons for it.

1. Breeding time

The breeding time of sows should be standardized, and the breeding time should be standardized to have more litters. Generally, the best breeding time is 12 hours before ovulation of sows. Therefore, if you want to have more litters, you must make clear the ovulation time of sows to determine the breeding time. Generally speaking, the litter size and season of sows also have certain influence. The litter size of breeding in January to April is generally more than that in June to September.

2. Variety reasons

The litter size and pig breed are inseparable, some pigs themselves have strong reproductive capacity, so the litter size is large, while some pigs have average reproductive capacity, so the litter size is average. Be careful when selecting breeding pigs, not only pay attention to the pig's body shape, but also understand its breeding ability, so as to avoid the situation of low litter size.

3. Boar problem

Breeding is inseparable from boars, if it is improper feeding of breeding boars or frequent breeding for a long time, these problems can lead to poor semen quality of boars, resulting in poor pregnancy of sows, and the number of sows born will be small. If this is the case, artificial insemination can be chosen. With the popularization of artificial insemination, many animals are now artificially inseminated, which can save costs.

4, breeding environment, poor nutrition

The breeding environment still has a relatively large impact on the litter size. For example, if the temperature and humidity of the farm are too high, it will affect the litter size of sows. Sows are more sensitive in early pregnancy, any disturbance will cause embryo loss, so keep the farm quiet, do not let sows be frightened. In addition, sow nutrition will also affect insemination and embryo development, feeding high-quality feed before breeding, improve the probability of insemination, feeding too much after breeding, but also reduce the embryo survival rate, so balanced nutrition.

5. Disease

Many diseases will cause pig breeding ability, causing insemination difficulties, low litter size, and even abortion, stillbirth conditions, such as swine fever, foot and mouth disease and other diseases. Therefore, the main protective measures should be taken at ordinary times, such as timely vaccination and regular inspection to avoid the occurrence of diseases.

The above is the reason why the sow farrowing network brings you less, there are many reasons for the sow farrowing less, but the main ones are the above several kinds, usually feeding must pay attention, I hope to help you.