Causes and solutions of difficulties in sow breeding in summer

Pig farmers all know that sows bred in summer will significantly reduce the number of litters, and stillbirths will occur, seriously affecting production efficiency. So what is the reason why it is difficult to breed sows in summer? Let's take a look.

1. High temperature

The summer temperature is higher, and the vitality of boars has a certain relationship with the environmental temperature. The higher the ambient temperature is, the lower the vitality of boars is, the thinner the boars are, and the more dead semen and weak semen are, which is the direct reason for the low conception rate of sows in summer. Therefore, many pig farmers generally do not breed in summer. In summer, they can install ventilation or spray cooling equipment in the enclosure, do a good job of heat prevention and cooling, control the temperature below 25 as far as possible, increase the vitality of boars and improve the conception rate.

2. Lack of nutrition

If the intake of nutrients needed for sow reproduction is insufficient, it will cause irregular estrus and ovulation in sows, which will directly affect mating and conception, stillbirth or weak fetus. At the same time, in the high temperature season, the stability of vitamins in feed is poor, and the lack of green feed will lead to vitamin deficiency in feed, which is also one of the reasons for the low conception rate and abnormal embryonic development of normal sows in summer. Therefore, it is necessary to supplement green feed in summer and add compound electrolysis to drinking water to supplement the deficiency of vitamins.

3. Lack of exercise

When the summer weather is hot and the amount of exercise of sows is very little, the weakness of hindlimbs will affect breeding, while less exercise of boars will also lead to a decline in vitality and directly affect the conception rate. Therefore, we should regularly ensure that sows and boars are active for more than an hour in summer, and it is still necessary to do a good job in cooling the pigsty, otherwise high-temperature exercise is very likely to cause heatstroke.

4. Infection disease

Sows may be in estrus or neither estrus nor give birth after being infected with parvovirus; after being infected with classical swine fever, their immune bacteria cause reproductive disorders; in summer, pigs are extremely susceptible to Japanese encephalitis, and boars will show decreased sexual function and semen quality, while sows will show difficulty in breeding, abortion, stillbirth and so on. Therefore, in summer, we should first do a good job in environmental hygiene conditions, regular cleaning and disinfection, reduce the breeding of bacteria in enclosures, targeted prevention and treatment after the occurrence of diseases, and avoid further deterioration of the disease.

The above is the introduction of the causes and solutions of sow breeding difficulties in summer. I hope I can help you. If you want to know more about it, please follow us.