How to ensure the breeding success rate of breeding pigs in summer
High temperatures in summer bring great trouble to sow farming, and one of these problems is the decline in the breeding success rate of sows. Moreover, summer is also a peak period for diseases, which can easily lead to miscarriage and stillbirth in sows. So how should farmers take measures in summer to improve the breeding success rate of pigs? Come and learn about it with the editor.
I. Reasons for the low breeding success rate in summer
1. Summer temperatures are hot, and the ambient temperature in the pig house is too high. This causes a decline in the libido of boars, and the vitality of semen also decreases, with symptoms such as thin semen and an increase in dead and weak sperm. In addition, insufficient intake of the nutrients needed for sow reproduction can also lead to irregular estrus and ovulation, which is also one of the main reasons for the low breeding success rate of sows in summer.
2. In summer, pigs are highly susceptible to Japanese encephalitis. In boars, it mainly manifests as orchitis, decreased sexual function, and reduced semen quality for breeding; after sows are infected with Japanese encephalitis, they show difficulty in breeding, miscarriage, stillbirth, and other phenomena. In addition, when the transport volume of breeding pigs is low, weakness of the hind limbs can also occur, which is also an important factor leading to breeding difficulty.
II. Solutions
1. Regulate temperature
Summer is hot with high temperatures, so the first thing to do is control the temperature well. Cooling and heatstroke prevention work can be done well by installing equipment such as fans or spray cooling.
2. Adjust feed
In summer, pigs have poor appetite, so the feed ratio should be changed in good time. Green feed should be fed, and feeding times should be changed to avoid feeding at noon. Feeding can be chosen in the early morning and at night when the temperature is lower. At these times the temperature is lower, the pigs have a better appetite, and they can take in sufficient nutrients. In addition, clean and cool drinking water should be supplied, and compound electrolytic multivitamins can be added to the drinking water to supplement the shortage of vitamins.
3. Do a good job of sow health care
This is especially true for sow health care during the perinatal period. Broad-spectrum antibiotics should be added to sow feed for one week before and after farrowing to purify sow diseases. In addition, during pregnancy, sows should maintain proper exercise, which is beneficial for farrowing and reduces stillbirth and miscarriage.
4. Adjust breeding time
In summer, with high temperatures, boars have low libido and poor semen quality, so the breeding time can be appropriately adjusted, changing morning and evening breeding to nighttime breeding. At night the temperature is lower, boars have higher libido, semen quality is higher, and the breeding success rate is also relatively higher.
The above is an introduction to how to ensure the breeding success rate of breeding pigs in summer. We hope it can help you. If you want to learn more related knowledge, please keep following us.